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Solid States Devices => solid state devices => Topic started by: SkyWatcher123 on April 28, 2017, 06:06:21 AM

Title: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on April 28, 2017, 06:06:21 AM
Hi all, was posting about this particular oscillator light in another thread, felt it was good enough for its own thread.
It's the basic joule thief style circuit, using gutted 12 volt led bulbs rated at 7 watts from ebay.
The bulbs did contain a boost circuit inside them, to boost from 12 volts to around 21-24 volts dc, of course i removed that circuit from each bulb, for added efficiency.
The setup really is putting out a very good amount of light.
I was previously using a small number of turns on the ferrite c-core, then used many more coil layers and increased efficiency even further.
When looking at a Phillips 40 watt equivalent led bulb in a nearby can light, it is not much brighter than one of the 6000k pure white led bulbs.
Here is a drawing and some pics.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on April 28, 2017, 07:20:26 AM
Hi all, was posting about this particular oscillator light in another thread, felt it was good enough for its own thread.
It's the basic joule thief style circuit, using gutted 12 volt led bulbs rated at 7 watts from ebay.
The bulbs did contain a boost circuit inside them, to boost from 12 volts to around 21-24 volts dc, of course i removed that circuit from each bulb, for added efficiency.
The setup really is putting out a very good amount of light.
I was previously using a small number of turns on the ferrite c-core, then used many more coil layers and increased efficiency even further.
When looking at a Phillips 40 watt equivalent led bulb in a nearby can light, it is not much brighter than one of the 6000k pure white led bulbs.
Here is a drawing and some pics.
peace love light

I am also interested  in your design and would love to see a close up photo of what your ferrite coil looks like.
I already have the 12 volt bulbs and other parts.  What diameter is your ferrite core and what is the length of your 8 windings as shown wound around the core ? (Not length in feet)  Will a B7a neon work?  Do you wind both (2 ) 24 gauge wires as one or separate windings?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on April 28, 2017, 08:04:56 AM
Hi magnetman, nice to see you.
The neon is the green one from the shack and it's only function is to protect the transistor, so yes, yours will work.
All the 12 volt bulbs used in this particular setup, have the inside circuitry removed, i could not get the led bulbs to such brightness and power input without doing so.
I'm getting tired, tomorrow sometime, i will take the close up picture of coil/core.
Also, i used clear packing tape between each coil layer.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on April 28, 2017, 04:57:32 PM
Hi magnetman, here is a pic of the ferrite TV flyback c-core and multi layer 24awg. magnet wire coil with clear packing tape between layers.
The air gap shown in the ferrite core is intentional.
peace love light :)
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on April 29, 2017, 03:49:42 AM
Hi all, working on a much larger and different triple ferrite tube core/coil setup.
The hope is, that this will give even greater output for the same input or the same output for less input than currently being used.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on April 29, 2017, 05:18:40 AM
Hi magnetman, here is a pic of the ferrite TV flyback c-core and multi layer 24awg. magnet wire coil with clear packing tape between layers.
The air gap shown in the ferrite core is intentional.
peace love light :)
Can you tell me if the ferrite core is two sections or one.  Also what is the LENGHT of your ferrite body?
With regards to the coil itself is there an inner winding connecting to the 2K OHM resister and a separate outer winding connected to the transistor?  Are you using some sort of tube to wind the coils on then the tube is slipped over BOTH ferrite core ends where the cores can be easily slipped in and out of the tube for circuit adjustments..  That would account for your intentional AIR GAP?    I have two fly back cores I can use.  One is smaller than the other. Both are composed of twin C shaped sections.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on April 29, 2017, 07:06:29 AM
Hi magnetman, it is the standard joule thief circuit found all over the net, which uses a bifilar coil, just like your air core.
The ferrite c-core is 2 separate sections and the way mine is setup, it works best with air gap or c-cores even turned away from each other.
That is why i'm making this new core/coil, because with this particular setup, it seems to work best with an open core.
Each c-core length, looks to be about 1-1/2".
I used some flexible, yet fairly thin plastic, and rolled a tube around a battery that is close in size, battery can be wrapped with tape to make larger former or you can even use a somewhat thicker paper for the coil tube former.
Then tack glue the end of the coil former to itself.
Then you can start winding on top of this, i used layer of packing tape between each layer.
Then the c-core can be slid in and out easily, as long as you didn't make the coil former too tight.
Hope that helps, though, based on my tests earlier today, an open ferrite core will work just as well it seems.
peace love light

Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on April 30, 2017, 04:43:14 AM
Hi magnetman, it is the standard joule thief circuit found all over the net, which uses a bifilar coil, just like your air core.
The ferrite c-core is 2 separate sections and the way mine is setup, it works best with air gap or c-cores even turned away from each other.
That is why i'm making this new core/coil, because with this particular setup, it seems to work best with an open core.
Each c-core length, looks to be about 1-1/2".
I used some flexible, yet fairly thin plastic, and rolled a tube around a battery that is close in size, battery can be wrapped with tape to make larger former or you can even use a somewhat thicker paper for the coil tube former.
Then tack glue the end of the coil former to itself.
Then you can start winding on top of this, i used layer of packing tape between each layer.
Then the c-core can be slid in and out easily, as long as you didn't make the coil former too tight.
Hope that helps, though, based on my tests earlier today, an open ferrite core will work just as well it seems.
peace love light
  I have just one question: Do you think two pre twisted together from the factory sections of 24 gauge wire 2.2 ohms each can be spooled onto the ferrite core as ONE and used ?  The wire is PVC coated.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on April 30, 2017, 07:35:55 AM
Hi magnetman, i think it might be ok, i remember lasersaber was using that kind of wire on a ferrite core and it worked well.
I would say between 1.5-2 ohms per strand would be best for the 12 volt bulbs.
Not sure how well it will work, if you do not remove the inner circuitry, though you can try and see.
I finally finished winding the triple tube ferrite core, i used 8 layers of 24awg. magnet wire and it comes out to 7.8 ohms per strand on that large core.
Unfortunately, after a few tests, it does not work the best with the 12 volt bulbs for me.
Though it works very well for the 120 volt led bulbs, the modified ones and the non-modified ones.
I think it's the fact that when we wind a ton of turns and the large core, the flyback spikes are very high and it's a much better match for the 120 volt led bulbs.
I also raised the voltage input with this larger coil/core to 19 volts, using a laptop power supply.
Most definitely a more efficient coil/core for the higher voltage bulbs, i placed 2 of the 120 volt led bulbs in the ceiling sockets from the circuit and they are blindingly bright and using 19.06 volts at 180 milliamps for 3.43 watts.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on April 30, 2017, 09:35:33 PM
Hi all, finding some interesting results.
I raised the input voltage even more, 26 volts input and using this large coil and am getting even greater efficiency this way.
I went back to the 230 volt-2sc5359 NPN transistor, because of using the higher voltage led bulbs again and also using the 2 neons in series across collector and emitter.
The modified 120 volt, 40 watt equivalent led bulbs are really pumping out the light, for only 26 volts at 110 milliamps or 2.86 watts.
Again, it seems removing any and all circuitry from inside these led bulbs, gives greater light and efficiency.
My line of thinking at the moment, is along the lines of Joseph Newmans work.
Meaning, if we add more copper wire, we then raise the voltage input and can still get the same output for less or we can maintain the same input and get more output and this logic seems to be working.
Your thoughts welcome.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on April 30, 2017, 10:40:21 PM
Hi magnetman, i think it might be ok, i remember lasersaber was using that kind of wire on a ferrite core and it worked well.
I would say between 1.5-2 ohms per strand would be best for the 12 volt bulbs.
Not sure how well it will work, if you do not remove the inner circuitry, though you can try and see.
I finally finished winding the triple tube ferrite core, i used 8 layers of 24awg. magnet wire and it comes out to 7.8 ohms per strand on that large core.
Unfortunately, after a few tests, it does not work the best with the 12 volt bulbs for me.
Though it works very well for the 120 volt led bulbs, the modified ones and the non-modified ones.
I think it's the fact that when we wind a ton of turns and the large core, the flyback spikes are very high and it's a much better match for the 120 volt led bulbs.
I also raised the voltage input with this larger coil/core to 19 volts, using a laptop power supply.
Most definitely a more efficient coil/core for the higher voltage bulbs, i placed 2 of the 120 volt led bulbs in the ceiling sockets from the circuit and they are blindingly bright and using 19.06 volts at 180 milliamps for 3.43 watts.
peace love light
I noticed your latest post about working with 120 volt led bulbs. You need to include a circuit diagram to interest others.  I am sure you will get many hits on your giant jewel thief setup. I still am sticking with the 12 volt LED bulbs.  My goal is to power 15 seven watt 12 volt bulbs (105 watts).  Then check the voltage and current each bulb in parallel is using along with the total watt usage.  I just completed making the coil.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on April 30, 2017, 11:24:01 PM
Hi magnetman, good idea, i'll draw up the latest circuit sometime today.
Look forward to your results magnetman.
An interesting test might be to take a picture of the light hitting one of those cheap, dollar store white foam board sheets, at a certain distance.
Then plug in some normal, wall powered led bulbs or 12 volt direct powered, to show any differences between the two.
Since i don't have any light meters, i may use that method to show how bright this setup is.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 01, 2017, 12:51:17 AM
Hi magnetman, good idea, i'll draw up the latest circuit sometime today.
Look forward to your results magnetman.
An interesting test might be to take a picture of the light hitting one of those cheap, dollar store white foam board sheets, at a certain distance.
Then plug in some normal, wall powered led bulbs or 12 volt direct powered, to show any differences between the two.
Since i don't have any light meters, i may use that method to show how bright this setup is.
peace love light

I have a excellent lux meter but the thing is so sensitive to light it must be mounted stationary  at a point away from where the actual light source is.  Holding by hand is a no no .  Meter goes crazy.

Here is the big question:  12 volts X .5833333 amps equals 6.9999 or 7 watt LED bulb.
What is the ""CALCULATED""  true LUX value of one led bulb as above measured directly at a distance say 10 feet away?  Different 12volt power sources will give different readings, NEED A STANDARD READING,
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 01, 2017, 01:09:03 AM
Hi magnetman, I'm not aware of the 7 watt, 12 volt led bulbs lux at 10 feet and i see the issue with your lux meter.
That is why i suggest the white foam board method, at least for me, all i'm concerned about at the moment, is usable light for humans eyes to use, so placing the white board at whatever distance, we can compare to known grid powered or battery powered led bulbs.
The 12 volt led bulbs you have, a man said in a video, they are around 600 lumens, directly powered from 12 volts dc.
Here is a new drawing of my latest circuit setup.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 01, 2017, 04:26:08 AM
Hi all, here is a couple pics of oscillator and lights in action.
I will be using the white foam board method soon, to try and show the light level output.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 01, 2017, 05:47:18 AM
Hi magnetman, I'm not aware of the 7 watt, 12 volt led bulbs lux at 10 feet and i see the issue with your lux meter.
That is why i suggest the white foam board method, at least for me, all i'm concerned about at the moment, is usable light for humans eyes to use, so placing the white board at whatever distance, we can compare to known grid powered or battery powered led bulbs.
The 12 volt led bulbs you have, a man said in a video, they are around 600 lumens, directly powered from 12 volts dc.
Here is a new drawing of my latest circuit setup.
peace love light

This is what I  did:  I have been making videos and posting them on the U tube where millions of persons view. In each video I give directions to my Overunity.com postings.  I already have over 11,000
hits on the overunity.com site.  You might want to give this a try.  No expense involved. All you need is a I pad to make and send video clips.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 02, 2017, 03:06:31 AM
Hi all, was posting about this particular oscillator light in another thread, felt it was good enough for its own thread.
It's the basic joule thief style circuit, using gutted 12 volt led bulbs rated at 7 watts from ebay.
The bulbs did contain a boost circuit inside them, to boost from 12 volts to around 21-24 volts dc, of course i removed that circuit from each bulb, for added efficiency.
The setup really is putting out a very good amount of light.
I was previously using a small number of turns on the ferrite c-core, then used many more coil layers and increased efficiency even further.
When looking at a Phillips 40 watt equivalent led bulb in a nearby can light, it is not much brighter than one of the 6000k pure white led bulbs.
Here is a drawing and some pics.
peace love light


Hi SkyWatcher123,
When you measured the 11.79 volts at 330 milliamps was that measurement taken at the 12 volt power source or was it taken off the base of one of the bulbs in series?   This is with all bulbs lit.

What was the voltage and current with a straight shot to the bulbs from the 12 volt power source WITHOUT this  setup?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 02, 2017, 03:17:23 AM
Hi magnetman, that was taken at the input, right at start of circuit.
12 volts will not drive the bulbs with the inside boost circuitry removed, but if i did make that test, it would definitely be well over 1 amp input.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 03, 2017, 01:00:25 AM
Hi,SkyWatcher 123,

I noticed that when I connected my 9 seven watt,12 volt bulbs directly to my setup and powered them off a 12 volt,12 amp hour battery they were blazing white in color and my room looked like heaven with so much light.
So this got me thinking about replacing that battery with a AC to 12volt DC power source.
I found that a 100 watt 12 volt AC to 12 volt DC power source was inexpensive so I bought one.

 https://www.amazon.com/Switching-Power-Supply-Regulated-Transformer/dp/B008AG4SPO/ref=sr_1_17?s=electronics&ie=UTF8&qid=1493754094&sr=1-17&keywords=12+volt+100+watt+power+supply

Now I will have a powerful standard to compare brightness as well as determining the actual advantage of any jewel thief circuit or Bedini based circuit I build.  Awaiting the power supply now.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 03, 2017, 02:25:47 AM
Hi magnetman, looks good, i have the 12 volt computer power supply that is good for 300 watts.
I tweaked the circuit some and raised the output wattage to 4.6 watts at 34 volts input.
At the moment, i have little doubt, that each of these 120 volt - 40 watt equivalent, modified led bulbs, are outputting at least 300 lumens or more each.
So what do we have then, 1200 lumens with a 4.6 watt input.
That works out to, 260 lumens per watt.
Each bulb is normally rated at 5.5 watts input - 450 lumens and 22 watts for the 4 bulbs.
Based on the wattage input to circuit, that is 21 percent of that 22 watts.
So normally, all 4 bulbs would output 1800 lumens.
And 21 percent of 1800 lumens, is only 378 lumens.
There is far more lighting in this room than only 378 lumens, is it as bright as heaven, no, but it is very bright up here.
I have made previous experiments with the 120 volt led bulbs, using oscillators like this, so i know what is possible.
This kind of efficiency is quite normal for these setups, though this particular one i've built, is doing better than most i have made.
Previously, i used a solar panel as a light meter to compare grid powered led bulbs to my oscillator powered led bubs, this is how i know what these circuits can do with led bulbs.
Really though, what matters is, is the light useful to our human eyes to light up rooms.
I'm thinking about an oscillator that will power these 12 volt, modified bulbs i have, efficiently.
What is needed i think, is something to maintain the high voltage spikes of the primary oscillator and maybe use a secondary coil to step down those spikes to a lower voltage and higher current, since that is what these prefer, since the led board is rated at around 22 volts.
Though we don't want to kill off the spikes too much, so as to maintain an impedance match of sorts, because that is where we get the extra efficiency.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 04, 2017, 04:11:28 AM
Hi all, here is a short video clip showing the light output of these 4 - 120 volt, 40 watt equivalent, modified led bulbs burning brightly.
https://youtu.be/5ENoj7Wq-Zs (https://youtu.be/5ENoj7Wq-Zs)
The input is 4.6 watts at 34 volts.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 04, 2017, 06:10:10 AM
Hi all, here is a couple pics of oscillator and lights in action.
I will be using the white foam board method soon, to try and show the light level output.
peace love light

I am still figuring out what is happening.  I have a 1.2 amp hour 12 volt battery that when connected to my setup will delver a light bulb output that is good.   Now when I connect a 12 amp hour,12 volt battery to my setup the bulbs burn with an intense light  Its obvious that the greater current is responsible.

Can you explain to me exactly how a jewel thief setup can deliver a somewhat lower voltage and very little current while matching or almost matching the light output of a direct connection? Which in my case would be the 12 amp battery connected to the setup directly.  Are we thinking ""pulsating""  DC?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 04, 2017, 06:23:47 PM
Hi magnetman, I would check the voltage on the lead acid batteries, sounds like the 1.2 amp one may be dropping in voltage a lot, maybe it is sulphated or the load is too much for it.
Yes, pulsing has something to do with the smaller input, also the pulses have inertia and the capacitor is using that pulse spike inertia to good effect also.
Meaning, the pulse output doesn't just end abruptly in a nanosecond, it rings and the closer we can get to resonance the better the output for less input.
With my setup, the output of the led bulbs is much better with the capacitor, the capacitor is absorbing the ringing.
In the past, i have used a 555 timer circuit making square waves, that had ability to adjust pulse width and duty cycle.
I was able with that setup, to place an incandescent tail light bulb on input and one on output of flyback of coil and get the input bulb to barely light, while the output was fully bright.
peace love light

Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 05, 2017, 05:47:19 AM
Hi Sky Watcher123,
Can you tell me in a """step by step""" fashion how to post a ""single"" photo on Overunity.com?
I have done it before but lost track as to exactly how.  I store my photos in Picaso 3 and
use a Windows 10 personal computer.

As it is I had been mailing a selected photo to myself but when I put that photo on the internet a lot of other photos in my album went with it.  I had to hurry and delete that.

How did you do it??
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 05, 2017, 07:29:49 AM
Hi magnetman, there is an attachment feature built into this forum software, just load it in when your ready to post and it will appear.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: gyulasun on May 05, 2017, 11:40:03 AM
Hi magnetman,

Step by step:

1)  make sure the picture files you want to upload do not have higher than max 900 x 600 pixel size, you check this in any picture editor like Windows Paint and resize it if happens to be higher than that. Otherwise the horizontal width of this thread page increases too much and everybody has to scroll here horizontally to be able to read the text lines.
In your picture editor you can easily do resizing.

2) after you prepared the pictures to have the correct sizes (preferably with jpg or png extension), press the Reply button in this thread and write your text.  Then click on the Browsing icon under the Attach word SkyWatcher also referred to, you can locate this under the Text window. Then locate the file folder you picture files are and selct one file and attach.

3) to attach one more picture file you need to repeat this attachment process by clicking on the (more attachments) icon seen under the Browsing icon.

4) when you have attached the intended picture(s), and finished your reply text too, press the Post icon as usual.

Gyula
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 05, 2017, 06:47:42 PM
Hi Sky Watcher123,
Can you tell me in a """step by step""" fashion how to post a ""single"" photo on Overunity.com?
I have done it before but lost track as to exactly how.  I store my photos in Picaso 3 and
use a Windows 10 personal computer.

As it is I had been mailing a selected photo to myself but when I put that photo on the internet a lot of other photos in my album went with it.  I had to hurry and delete that.

How did you do it??

I made the below photo by following all advice and its under 900x 900.
Its my SkyWatcher  transformer replication for the 12 volt bulb setup I am going to try when my 12 volt 8.5 amp power supply arrives.  Then will have a very good idea relative to bulb brightness. Using my setup, SkyWatcher123  setup, and also comparing all to a straight shot from the power source to the bulbs without each setup in between.  Please excuse the horrible looking black tape job.  The windings under it are in perfect alignment.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 06, 2017, 04:20:35 AM
Hi magnetman, nice looking core/coil, that core looks large, looking forward to your results with it.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 06, 2017, 06:59:27 AM
Hi magnetman, here is a pic of the ferrite TV flyback c-core and multi layer 24awg. magnet wire coil with clear packing tape between layers.
The air gap shown in the ferrite core is intentional.
peace love light :)

What watt value is the 2K resistor?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 06, 2017, 07:06:22 AM
Hi magnetman, that was actually two, 1 watt, 1 Kohm resistors in series on the base of transistor.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 07, 2017, 07:44:35 AM
Hi all, i've made some changes with my setup.
I removed all the 24awg. wire from that big core and am now using a single ferrite tube core, with only one layer of bifilar, 24awg. magnet wire.
This way, i can go back to using the 12 volt computer power supply.
It works very good and frequency is much higher.
I also added another separate full circuit, with same type of core and coil, using a separate PNP transistor, also off the same power supply and switch.
I did this for a couple of reasons, one was to get even more light output, while staying with 4 modified 120 volt led bulbs per circuit.
Second reason is because i just picked up another 4 meijer led bulbs and they are not quite the same as the previous ones, so the led bulb loads did not balance when in parallel.
So another driver circuit is a good solution i feel.
Also, these circuits are more efficient than all i have tried so far, i'm sure the high frequency is part of the reason.
Not quite finished yet, i have to run a separate line to the ceiling. to the other set of 4 led bulbs.
When i finish, i will post some pics and circuit drawing.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 07, 2017, 10:01:22 AM
Hi all, i've made some changes with my setup.
I removed all the 24awg. wire from that big core and am now using a single ferrite tube core, with only one layer of bifilar, 24awg. magnet wire.
This way, i can go back to using the 12 volt computer power supply.
It works very good and frequency is much higher.
I also added another separate full circuit, with same type of core and coil, using a separate PNP transistor, also off the same power supply and switch.
I did this for a couple of reasons, one was to get even more light output, while staying with 4 modified 120 volt led bulbs per circuit.
Second reason is because i just picked up another 4 meijer led bulbs and they are not quite the same as the previous ones, so the led bulb loads did not balance when in parallel.
So another driver circuit is a good solution i feel.
Also, these circuits are more efficient than all i have tried so far, i'm sure the high frequency is part of the reason.
Not quite finished yet, i have to run a separate line to the ceiling. to the other set of 4 led bulbs.
When i finish, i will post some pics and circuit drawing.
peace love light

Where are you buying the ferrite tubes?  I have miles of 24 gauge  wire and am very interested in your doings. Love to see your circuit and photos.   
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 07, 2017, 10:17:20 AM
Check this video out.

https://www.youtube.com/watch?v=M3YWB-noPNo

Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 07, 2017, 07:11:42 PM
Hi magnetman, i had previously bought the ferrite tubes at a place called american science and surplus.
They are just over an inch in length, i just super glued 4 of them together to make the core.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: AlienGrey on May 07, 2017, 07:31:47 PM
Hi magnetman, i had previously bought the ferrite tubes at a place called american science and surplus.
They are just over an inch in length, i just super glued 4 of them together to make the core.
peace love light
it sounds like he is using ferrite rings, try it with some of the high impermeability ones on the market like Farnell ect.

good luck. AG
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 07, 2017, 07:57:49 PM
Yes brothergrey, they are ferrite rings they use for noise suppression.
Not sure what kind of permeability they have, probably not much, though they are working well.
I'm at the moment, hooking up the line to the new set of 4 led bulbs. 8)
peace love light

oh and the coil is wrapped around the ferrite tube, normal solenoid coil style.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 07, 2017, 11:19:35 PM
Hi magnetman, i had previously bought the ferrite tubes at a place called american science and surplus.
They are just over an inch in length, i just super glued 4 of them together to make the core.
peace love light

Here is a thought:  You can insert a ferrite rod into one end of your ferrite tube and by working it back and forth you can fine tune your circuit.  Glue it in place when you find the perfect sweet spot where best light output occurs with lowest current flow.   Also need to know -- I have a ceramic ferrite rod magnet that is 5 1/4 inch long and 3/4 inch in diameter.  Can a ceramic magnet be used in a ferrite called for situation or would the magnetic effect interfere in a joule thief application?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 08, 2017, 05:34:27 AM
Hi all, Hi magnetman, that's a good idea, if i had a ferrite rod that fit, i would try it for sure.
Maybe if you demagnetized the ceramic magnet, though somehow i think it still wouldn't work well, because it might want to become polarized again.
I finished the new setup, it is very bright, with all 8 bulbs burning.
Though it is using 7.6 watts, there is quite a lot of illumination being output for that wattage input.
Here is the circuit drawing and a pic, just to give an idea.
I also just realized the 4 newer led bulbs i got, they are showing around 55 volts on buffer capacitor, so that means those bulbs had a step down circuit inside them, where as the other bulbs show around 96 volts.
This would explain why they were not load balancing in parallel, with the single oscillator circuit.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 08, 2017, 06:25:09 AM
Hi SkyWatcher 123,

I have two monster ferrite rings that are  5 inches in diameter and 2 inches thick. Looks like a huge donut Never found a use for them. Very heavy. Do you think one might make a good coil if I put the same amount of wire turns with 24 gauge wire you used on your 12 volt setup?
I can easily band saw slit the ring and wind turns through the slit.  The nice thing about this if it works at all is the fact that I can pull/push another small section of ferrite in and out of it and fine tune for maximum effect?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on May 08, 2017, 08:33:11 PM
Hello Skywatcher,

Please can you show how you modify the bulbs without destroying it. The Cfls we have here can be easily unscrewed in order to access the circuit. But the leds bulbs here are completely sealed. Can you post a link on ebay where I can buy EXACTLY the led bulbs you are using? Can you also post a picture of the internal modified bulb, with the output connected directly to the bulb?

Also, can your circuit run directly from a battery with the same impressive performance as the computer power supply? Finally, speaking of your ferrite tube, does size matter?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 08, 2017, 10:20:52 PM
Hi magnetman, that might work ok and it might even be ok if you don't cut a slit in the core.
Though i have found that an open core seems best for these flyback radiant spikes.

Hi Naija, If i have trouble getting the bulb diffuser off, i use a heat gun, that softens the glue and then can be easily pried off with a flat screwdriver.
The bulbs i'm using are from the Meijer store, it's a 120 volt led bulb, though some as said, vary as to what the actual driving voltage is, of the led board inside, but that's ok, because the circuit can be tweaked to compensate for that.
Every led bulb i have, has a dual power pin on the led circuit board, i use 24awg. telephone wire, actually might be 20 or 22 gauge, to slide into that dual pin and then one wire is press connected into the removable bottom pin of the bulb.
The other wire is ran outside the bulb, if you have to drill a small hole in the plastic, do so, then i solder that to the upper part of the bulb screw power connection.
Yes, a battery will work fine, though depending on amp draw, battery capacity will be based upon that.
As far as the ferrite tube core, i think this is working well, because the winding length is not too long, so as to keep frequency up at the lower 12 volts and allow a nice amperage to flow per pulse.
Otherwise, if the windings get too long, you have to go to a higher input voltage to get the brightness desired and frequency up.
Here is a couple close up pics of one of the led bulbs in one set of 4.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on May 08, 2017, 10:54:10 PM
Thank you Skywatcher for your quick response. One last question though, is there a replacement for the neon bulbs? Since it's job is to protect the transistor, is there something else like diode that can execute the same job?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on May 08, 2017, 11:01:03 PM
If the neon bulbs are necessary, is it this type found here on http://m.ebay.com/itm/20Pcs-5x10mm-Orange-Light-Neon-Bulb-Indicator-Lamp-100V-220V-w-Resistor-M2524-QL-/182047562531?nav=SEARCH
Or this type found here http://m.ebay.com/itm/NOS-Vintage-Signalite-USA-NE-45-Neon-Glow-Lamp-Light-Bulb-/352004768340?nav=SEARCH
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 08, 2017, 11:09:59 PM
Hi Naija, i don't think a diode will work, because then that will divert all the current away from where we want it go, that being to the buffer capacitor and led bulb.
The neon activates at a certain higher voltage, so any excess overflow voltage/current that might exist and is not being absorbed into where we want it go, does not damage transistor, as you pointed out.
I'm not sure what component can serve the same kind of protective function.
It might be ok though, as with this particular coil length and core, it is no longer lighting a single neon while in operation, which means it is not creating an excess abundance of voltage, which if it were, might not be effectively used by our led bulb loads.
Also, if you choose a high voltage transistor, then you should be ok.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 08, 2017, 11:14:35 PM
The voltage of any neon you get, will be dependent upon which transistor you are using, if you are using a 100 volt transistor, then a 100 volt neon would be good.
So, a higher voltage transistor would be best in these types of radiant spike circuits and in case you forget to connect the load for some reason, high voltage would be present across the transistor.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 09, 2017, 03:22:35 AM
The voltage of any neon you get, will be dependent upon which transistor you are using, if you are using a 100 volt transistor, then a 100 volt neon would be good.
So, a higher voltage transistor would be best in these types of radiant spike circuits and in case you forget to connect the load for some reason, high voltage would be present across the transistor.
peace love light
Do you think a C4423 transistor could be used in place of the TIP3055 transistor in the 12 volt circuit.  It has a voltage rating of 400 volts and 10 amps.  How about a BUH1015  which has a voltage rating of 700 volts?   I have lots of each.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 09, 2017, 05:17:56 AM
Hi magnetman, that would be a good choice, it would be safety margin and would be more reliable.
If anyone is going to use these light circuits while they are away, i would also add a fuse of proper rating.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 09, 2017, 07:17:02 AM
Hi magnetman, that would be a good choice, it would be safety margin and would be more reliable.
If anyone is going to use these light circuits while they are away, i would also add a fuse of proper rating.
peace love light
[/quote

Do you have an idea what base resistor value is needed-watts also. if I use a BUH1015 transistor instead of a TIP3055 in your 12 volt circuit?
The BUH1015 is used in the horizontal output section of a TV.  Very fast switching large transistor. Shown is my monster ferrite ring compared to a lemon. If I don't use it I will sell it. Its already been taped Coil winding comes next.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: gyulasun on May 09, 2017, 12:51:20 PM
....
Do you have an idea what base resistor value is needed-watts also. if I use a BUH1015 transistor instead of a TIP3055 in your 12 volt circuit?
The BUH1015 is used in the horizontal output section of a TV.  Very fast switching large transistor. Shown is my monster ferrite ring compared to a lemon. If I don't use it I will sell it. Its already been taped Coil winding comes next.

Hi magnetman,

Here is a data sheet for your transistor: http://pdf.datasheetcatalog.com/datasheets/105/365081_DS.pdf 
and the parameter  hFE  (DC current gain) is shown to be between 7 to 14 only (page 2, in the middle of tabelle Electrical Characteristics).   This means that to have a collector current of say 100 mA, you need to pump roughly 100mA/10mA=10mA base current via a resistor from the supply (I considered the typical  hFE = 10 from data sheet, and hFE = IC/IB 
Now to provide 10 mA base current, you would need to use a resistor which provides this from your input supply voltage. IF you use 5V DC input, then base resistor R could be  (5V-0.8V)/10mA = 420 Ohm or if you use 12V then R=(12V-0.8V)/10mA = 1120 Ohm. (The 0.8V I considered is the forward bias voltage drop between the base and the emitter.)
The power dissipation in such resistor may be evaluated too,  base current squared times the resistor, i.e.  .01A*.01A*1120 Ohm= 112 mW  or for a 420 Ohm at 5V DC supply it would be 42 mW.

Of course this is an approach in theory but can still serve to get an insight, the AC feedback voltage transformed back from the collector winding via the coupling coil to the base will modify the base current. 

A good approach in practice would be to use a 100 Ohm  3 W resistor in series with a 1 kOhm potmeter rated for also at least 2W or higher.  This is not an overkill but precaution because making the base current adjustable is always advisable to find a "sweet" operating point for the transistor and if you happen to bring the wiper of the potmeter to zero Ohm during the tests then the base current would increase to 112 mA via the series 100 Ohm from a 12V supply voltage and then the dissipation in the 100 Ohm would increase to 1.25 W.

Gyula
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 09, 2017, 09:26:10 PM
Hi magnetman,

Here is a data sheet for your transistor: http://pdf.datasheetcatalog.com/datasheets/105/365081_DS.pdf 
and the parameter  hFE  (DC current gain) is shown to be between 7 to 14 only (page 2, in the middle of tabelle Electrical Characteristics).   This means that to have a collector current of say 100 mA, you need to pump roughly 100mA/10mA=10mA base current via a resistor from the supply (I considered the typical  hFE = 10 from data sheet, and hFE = IC/IB 
Now to provide 10 mA base current, you would need to use a resistor which provides this from your input supply voltage. IF you use 5V DC input, then base resistor R could be  (5V-0.8V)/10mA = 420 Ohm or if you use 12V then R=(12V-0.8V)/10mA = 1120 Ohm. (The 0.8V I considered is the forward bias voltage drop between the base and the emitter.)
The power dissipation in such resistor may be evaluated too,  base current squared times the resistor, i.e.  .01A*.01A*1120 Ohm= 112 mW  or for a 420 Ohm at 5V DC supply it would be 42 mW.

Of course this is an approach in theory but can still serve to get an insight, the AC feedback voltage transformed back from the collector winding via the coupling coil to the base will modify the base current. 

A good approach in practice would be to use a 100 Ohm  3 W resistor in series with a 1 kOhm potmeter rated for also at least 2W or higher.  This is not an overkill but precaution because making the base current adjustable is always advisable to find a "sweet" operating point for the transistor and if you happen to bring the wiper of the potmeter to zero Ohm during the tests then the base current would increase to 112 mA via the series 100 Ohm from a 12V supply voltage and then the dissipation in the 100 Ohm would increase to 1.25 W.

Gyula


Thank you much for your input help on this Gyula.  I am not familiar how to use the transistor tables at all. I need now is the resistor since I already have the 1k pot, transistor,cap and diode
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: gyulasun on May 09, 2017, 09:40:26 PM
Well, you can use any resistors in series, if you have some say 56 or 82 or 120 Ohm, not critical.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 09, 2017, 09:45:35 PM
I have a question about using this type of power supply shown below.  The rating is 20 amps. The power supply has TWIN DC terminals.  Does that indicate I can only draw 10 amps off one dc terminal and 10 amps off the other dc terminal??  Or can I draw 20 amps off only one of the terminals?

No answers from the seller so far.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: gyulasun on May 09, 2017, 09:58:33 PM
Well if you can see three  COM and three V+ labels above the terminal strip like on this power supply I chose at random:
http://www.ebay.com/itm/191696481796 

then it means you can draw 20A from any one COM and one V+, ok?   The three COM terminals next to each other are the same negative polarity and the three V+ terminals are the same positive polarity outputs.  The expalanation for having 3 of them each is to increase connect surface area. No restriction for 10A or whatever.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 09, 2017, 10:36:49 PM
Well if you can see three  COM and three V+ labels above the terminal strip like on this power supply I chose at random:
http://www.ebay.com/itm/191696481796 

then it means you can draw 20A from any one COM and one V+, ok?   The three COM terminals next to each other are the same negative polarity and the three V+ terminals are the same positive polarity outputs.  The expalanation for having 3 of them each is to increase connect surface area. No restriction for 10A or whatever.
[/quote

Thanks for the explanation.  I have one on order and did not want to damage it later on.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on May 10, 2017, 02:53:03 AM
Hello Skywatcher,

Will your circuit drive 7w 220V led bulbs or was it specifically designed for 40w led bulbs? Am thinking that having several multiples of 7w 220V led bulbs is better suited to my replication of your circuit.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 10, 2017, 06:22:33 AM
Hi Naija, i chose the 5.5 watt- 40 watt equivalent led bulbs, to get a better intensity or brightness from the bulbs.
For your 220 volt bulbs, you might need to use more turns, maybe an extra coil layer, maybe not, experiment will tell you this.
It may be that the 220 volt led bulbs, could give more efficiency with this type of setup, i don't have any 220 volt versions on hand, so i don't know.
This i can tell you, the multiple led bulb in parallel approach, run off this type of circuit, is more than just spreading the light around.
The radiant spikes from the oscillator are being converted very efficiently by the buffer capacitor and whatever passes by that and into the multiple bulbs, to give far more lumens than one would expect for the wattage input.
Are we getting benefit from placing multiple bulbs spaced apart, of course, but that is not the whole story, just part of it.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on May 10, 2017, 09:22:33 AM
Hi Naija, i chose the 5.5 watt- 40 watt equivalent led bulbs, to get a better intensity or brightness from the bulbs.
For your 220 volt bulbs, you might need to use more turns, maybe an extra coil layer, maybe not, experiment will tell you this.
It may be that the 220 volt led bulbs, could give more efficiency with this type of setup, i don't have any 220 volt versions on hand, so i don't know.
This i can tell you, the multiple led bulb in parallel approach, run off this type of circuit, is more than just spreading the light around.
The radiant spikes from the oscillator are being converted very efficiently by the buffer capacitor and whatever passes by that and into the multiple bulbs, to give far more lumens than one would expect for the wattage input.
Are we getting benefit from placing multiple bulbs spaced apart, of course, but that is not the whole story, just part of it.
peace love light

Thank you Skywatcher for your answers and please one final one (hopefully), if I were to use 8 identical bulbs, there won't be need for an incorporated second circuit right? Which means only one transistor is required. If this were so, then which of the two transistors in your circuit should I use, the NPN or PNP?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on May 10, 2017, 10:04:24 AM
Hello Skywatcher, in your older circuit, you were using TIP3055 with only one neon bulb. Would you recommend me using the same transistor for the 8 identical bulbs in parallel?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: gyulasun on May 10, 2017, 10:28:33 AM
....
Here is the circuit drawing and a pic, just to give an idea.
....

Hi SkyWatcher,

I just noticed a drawing error in your circuit schematic: you mixed up the emitter and collector pins of the PNP transistor.
I have corrected the drawing, see it attached below.

Gyula
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: gyulasun on May 10, 2017, 06:19:18 PM
Thank you Skywatcher for your answers and please one final one (hopefully), if I were to use 8 identical bulbs, there won't be need for an incorporated second circuit right? Which means only one transistor is required. If this were so, then which of the two transistors in your circuit should I use, the NPN or PNP?

Hi Naija,

Skywatcher will surely answer you,  let me give just a general piece of advice on transistor types:  basically what you would need is a high voltage rated fast switching transistor.  Such types are mainly NPN ones, preferably have low collector-emitter saturation voltage, VCEsat  and a relatively high hFE  Dc current gain, known also a Beta, Ic/Ib. 
These types are developed for switching mode power supplies or for electronic lamp ballast circuits.  If you cannot buy such types at your location, you may scavenge some from discarded PC power supplies, or 120V and 230V fluorescent light bulbs etc.

Here are some types, though you can surely find other types too, now that you know what to search.

Fairchild (now Onsemi) type FJP5554, see at Digikey, Farnel, RS Components, Mouser:

https://www.digikey.com/product-detail/en/fairchild-on-semiconductor/FJP5554TU/FJP5554TU-ND/1473889
400V 4A 70W, hFE is between 20 to 100, saturation voltage is max 0.5V at Ic=1A.

ST Microelectronics type BUL742C,  see at Mouser and Farnell,
http://eu.mouser.com/_/?Keyword=BUL742C   
400V, 4A, 30 or 70W, hFE is between 25 and 100, saturation voltage is typical 0.15V at Ic=1A.

Gyula
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on May 10, 2017, 07:41:05 PM
Thanks very much Gyula. Your explanation is well appreciated.

Naija
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 10, 2017, 09:18:27 PM
Hi Naija, you can use 8 indentical modified led bulbs, don't see a problem with that.
Yes, i used the separate circuit, because i had another set of 4 led bulbs that were different as far as forward voltage of led board and i didn't want to see those just sitting around.
I used the PNP for that separate circuit, because i had it on hand from a salvaged powered subwoofer, though if you wanted to use a separate circuit, you can use an NPN and if you use only one circuit, either NPN or PNP will work fine.
Gyulasun gave good advice for the transistor selection.
Thanks for correcting my circuit drawing gyulasun.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 14, 2017, 02:37:53 AM
Hi Naija, you can use 8 indentical modified led bulbs, don't see a problem with that.
Yes, i used the separate circuit, because i had another set of 4 led bulbs that were different as far as forward voltage of led board and i didn't want to see those just sitting around.
I used the PNP for that separate circuit, because i had it on hand from a salvaged powered subwoofer, though if you wanted to use a separate circuit, you can use an NPN and if you use only one circuit, either NPN or PNP will work fine.
Gyulasun gave good advice for the transistor selection.
Thanks for correcting my circuit drawing gyulasun.
peace love light

I wonder what the circuit output to the bulbs looks like {Across the capacitor} on a scope??  I don't have one yet.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on May 20, 2017, 12:07:53 AM
Hi Naija, you can use 8 indentical modified led bulbs, don't see a problem with that.
Yes, i used the separate circuit, because i had another set of 4 led bulbs that were different as far as forward voltage of led board and i didn't want to see those just sitting around.
I used the PNP for that separate circuit, because i had it on hand from a salvaged powered subwoofer, though if you wanted to use a separate circuit, you can use an NPN and if you use only one circuit, either NPN or PNP will work fine.
Gyulasun gave good advice for the transistor selection.
Thanks for correcting my circuit drawing gyulasun.
peace love light

Hello Skywatcher, how do I protect your circuit from accidental short circuiting of the output terminals?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 20, 2017, 01:19:54 AM
Hi naija, a fuse is the only thing i can think of at the moment.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: casiano on May 21, 2017, 11:12:57 AM
Hello SkyWatcher.
I replicated your circuit and it works very well,the only difference is i used a different cap and coil.
I used a 5v phone charger and 9 220v led bulbs in parallel.
The question is,why i am getting 280v output from the setup circuit?
And no matter how many led bulbs i add the power consumption is the same.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 21, 2017, 06:32:30 PM
I just bought a AC to DC 12 volt 8.5 amp  power unit (102 watts) and when I connected it to my setup all
9 of my 7 watt bulbs in parallel with an extra 5 watt bulb included in parallel (68 watts)  go on and off continuously??????  NOTE: A regular 12 volt 12 amp hour battery will power all the bulbs continuously.  No on and off.
Just what kind of a AC to DC power unit do I need??  Please indicate on Ebay the correct type of supply I need.  You cant use a battery to figure out accurate circuit parameters as the voltage will start decaying as soon as its used.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: gyulasun on May 21, 2017, 06:47:09 PM
Hi magnetman,

Are the 9 bulbs + the extra 5W bulb nicely lit when you directly run them from the output of your AC to DC power unit? i.e. leave out your setup, ok?
From your description it looks like the 102 W power adapter is not capable to supply enough current at 12 V to feed the 12 V bulbs.  And of course you can always do measurements on the 12 V output when you start it loading say one by one with your lamps.

Gyula
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 22, 2017, 01:02:32 AM
Hi all, Hi magnetman, I agree with the advice of gyulasun.

I have been making some experiments with my dual oscillator circuit that is powering the 8 led bulbs.
It has been working very well for me, when i need a lot of light up here.
So i decided to try the setup using the 3 battery, split positive method to power it.
The input watts to the circuit is normally around 8 watts with the 11.7 volt input from computer power supply.
With this 3 battery setup, that input voltage to the setup does diminish a bit over time, to about 10.5 volts when the charging battery is at 14 volts, yet still allows the led bulbs to output very good light.
Some interesting results so far, using the 12 volt tractor batteries.
I have started the test with Battery A and B in series as the primary input and battery C as the charge battery.
Rest Voltage, batteries have not been used for at least a couple weeks:                     
Battery A = 12.50 volts
Battery B = 12.52 volts
Battery C = 12.495 volts
Overnight Rest Voltage after 3 hour run time:
Battery A = 12.51 volts
Battery B = 12.515 volts
Battery C = 12.725 volts

Seems rather interesting so far, i will be continuing these tests by alternating the batteries to see where this goes.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 22, 2017, 06:59:57 AM
Hi magnetman,

Are the 9 bulbs + the extra 5W bulb nicely lit when you directly run them from the output of your AC to DC power unit? i.e. leave out your setup, ok?
From your description it looks like the 102 W power adapter is not capable to supply enough current at 12 V to feed the 12 V bulbs.  And of course you can always do measurements on the 12 V output when you start it loading say one by one with your lamps.

Gyula
  A 12 volt 1.2 amp hour battery and a 12 volt  23a battery will light ALL bulbs powered through my setup???  But a 12 volt 8.5 amp DC power supply cant power all-- just pulse -- go figure??
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on May 22, 2017, 09:00:49 AM
Hi all, Hi magnetman, I agree with the advice of gyulasun.

I have been making some experiments with my dual oscillator circuit that is powering the 8 led bulbs.
It has been working very well for me, when i need a lot of light up here.
So i decided to try the setup using the 3 battery, split positive method to power it.
The input watts to the circuit is normally around 8 watts with the 11.7 volt input from computer power supply.
With this 3 battery setup, that input voltage to the setup does diminish a bit over time, to about 10.5 volts when the charging battery is at 14 volts, yet still allows the led bulbs to output very good light.
Some interesting results so far, using the 12 volt tractor batteries.
I have started the test with Battery A and B in series as the primary input and battery C as the charge battery.
Rest Voltage, batteries have not been used for at least a couple weeks:                     
Battery A = 12.50 volts
Battery B = 12.52 volts
Battery C = 12.495 volts
Overnight Rest Voltage after 3 hour run time:
Battery A = 12.51 volts
Battery B = 12.515 volts
Battery C = 12.725 volts

Seems rather interesting so far, i will be continuing these tests by alternating the batteries to see where this goes.
peace love light

Hello Skywatcher, can you please explain more about the 3 battery - split positive method? How does it work? Diagrams will be appreciated. Is there a link to an article where I can study that? Thanks in anticipation for your reply
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 23, 2017, 12:02:06 AM
Hi all, Hi naija, matthew jones and turion have done a lot of work using the split positive, 3 battery setups.
It is basically whatever you wish to power, placed between the positives of the 24 volt series battery and the single 12 volt battery, so the positive is the positive of the batteries in series for 24 volts and the negative is the positive of the 12 volt charging battery.
This gives you 12 volts for your load, so the batteries are essentially in parallel.
Then your load is between the positives and the negatives are connected directly to each other.
Still alternating the batteries and running the circuit for 3 hours and then letting it rest.
It is interesting to note, that the 3 batteries started out at a combined total voltage of 37.515 volts.
With 9 hours of total runtime so far and one complete cycle or all 3 batteries have swapped positions, with probably an average wattage of 7 watts, since the split positive voltage reduces as battery 3 charges.
The total combined voltage of the 3 batteries is at 37.64 volts.
peace love light

Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on May 23, 2017, 11:42:24 AM
Hi all, Hi naija, matthew jones and turion have done a lot of work using the split positive, 3 battery setups.
It is basically whatever you wish to power, placed between the positives of the 24 volt series battery and the single 12 volt battery, so the positive is the positive of the batteries in series for 24 volts and the negative is the positive of the 12 volt charging battery.
This gives you 12 volts for your load, so the batteries are essentially in parallel.
Then your load is between the positives and the negatives are connected directly to each other.
Still alternating the batteries and running the circuit for 3 hours and then letting it rest.
It is interesting to note, that the 3 batteries started out at a combined total voltage of 37.515 volts.
With 9 hours of total runtime so far and one complete cycle or all 3 batteries have swapped positions, with probably an average wattage of 7 watts, since the split positive voltage reduces as battery 3 charges.
The total combined voltage of the 3 batteries is at 37.64 volts.
peace love light

Thanks, very educational. Am glued on, looking forward to your results!
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 24, 2017, 01:35:39 AM
Hi all, Hi Naija, your welcome, i hope i have good results as well.
So far, it is getting interesting.
I have placed all 3 batteries in parallel, to equalize them.
The total voltage is resting at 37.65 volts.
This after 12 hours runtime so far, at around 7-7.5 watts average being used between the positives,
or around 90 watt/hours.
Now remember, these 3 batteries started out at 37.515 volts total and had not been used for a few weeks.
And overall, they have been climbing slowly in voltage.
We shall continue the experiment and see where it goes.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 24, 2017, 07:50:24 PM
Hi all, so after letting all 3 batteries equalize half of yesterday and into this morning, connected in parallel, these are the results.
Original starting rest voltage of each battery:
A = 12.50 volts
B = 12.52 volts
C = 12.495 volts
Total = 37.515 volts
Present resting voltage after around 90 watt/hours extracted:
A = 12.52 volts
B = 12.52 volts
C  = 12.55 volts
Total = 37.59 volts
Will continue the experiment.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 25, 2017, 07:16:20 AM
Hi all, i will be posting updates on this 3 battery setup very often, at least everyday if i can.
The results keep getting more interesting.
I am finding, that it seems best to place all 3 batteries in parallel, to equalize them, after every test run or use.
This reveals some interesting things, that may not be apparent, if we only add up the resting voltages after a test run.
When we place them all in parallel to equalize, it shows us a more true state of charge of all 3 batteries and keeps any one battery from falling too far below any other battery.
As for the slowly improving results i am seeing, i think that the power being extracted from this setup, is probably within an ideal range for these size and type of batteries.
I have made similar tests with these batteries previously, in a 3 battery setup also, though i think i was drawing far too much power for these batteries.
Also, this dual circuit is different also than previous circuits, the capacitors could be helping transfer the charge more efficiently into the charge battery as well.
So i ran the dual circuit again for 4 hours this time, for around 120 watt/hours total so far and the batteries are all in equalization mode again.
And yet again, the voltages overall, are slowly climbing.
I will let it equalize overnight again, though i can see where it is going.
Two of the batteries will drop somewhat by morning and then a little more after they are disconnected from parallel equalization mode, however, they are climbing in voltage, that is for sure.
A = 12.565 volts
B = 12.57 volts
C = 12.565 volts
Total = 37.7 volts
We shall see what the voltage settles to tomorrow and after they have rested after being disconnected from equalization.
Your thoughts are very welcome.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 28, 2017, 04:08:17 AM
Hi all, was posting about this particular oscillator light in another thread, felt it was good enough for its own thread.
It's the basic joule thief style circuit, using gutted 12 volt led bulbs rated at 7 watts from ebay.
The bulbs did contain a boost circuit inside them, to boost from 12 volts to around 21-24 volts dc, of course i removed that circuit from each bulb, for added efficiency.
The setup really is putting out a very good amount of light.
I was previously using a small number of turns on the ferrite c-core, then used many more coil layers and increased efficiency even further.
When looking at a Phillips 40 watt equivalent led bulb in a nearby can light, it is not much brighter than one of the 6000k pure white led bulbs.
Here is a drawing and some pics.
peace love light
  Looking at your 12 volt circuit I see you use a 450 volt, 150uf capacitor.  I have many 100uf, 450 volt capacitors.  Would one of them do just as well or would I run into problems?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 28, 2017, 05:56:02 PM
Hi magnetman, one of those capacitors should be ok.
The other PNP transistor circuit is using a 330uF-200 volt capacitor and it needs more base current drive ( 2.5 Kohm compared to 5 Kohm ) to match the other circuits led bulb brightness, so it may be because the capacitor is a little more than double the capacity value.
So i would say, use the minimum capacitor uF value you can, but not too small, as it does help boost the output quite a bit it seems.
Remember, I'm using the gutted 5.5 watt-120 volt led bulb type at this time.
Each capacitor in the dual circuit, is showing around 55 volts dc.
The dual circuit is at 9.1 watts now, though that can be lowered with matching capacitors.
The setup now has all matching led bulbs, 8 of them, though i can say now, it is like the sun blazing up here. 8)
I tested one of the warm white 12 volt bulbs the other night, without any modifications.
And on a 12 volt battery, while it was drawing 6.5 watts, it had no where near the practical illumination of these 8 modified led bulbs, it was like a spit in the wind. ???
peace love light
Edit: I was able to dig up a 450 volt-120uF capacitor and it did reduce the base current needed on the PNP transistor and was able to raise the resistance to 3 Kohm and still match the other led bulb circuit.
Both circuits are drawing 350 milliamps and a total of 700 milliamps at 11.74 volts or 8.2 watts and outputting the same light intensity.
Maybe the PNP transistor is a little different and/or other variables, causing the need for the lower base resistance.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on May 29, 2017, 01:55:17 AM
Hi magnetman, one of those capacitors should be ok.
The other PNP transistor circuit is using a 330uF-200 volt capacitor and it needs more base current drive ( 2.5 Kohm compared to 5 Kohm ) to match the other circuits led bulb brightness, so it may be because the capacitor is a little more than double the capacity value.
So i would say, use the minimum capacitor uF value you can, but not too small, as it does help boost the output quite a bit it seems.
Remember, I'm using the gutted 5.5 watt-120 volt led bulb type at this time.
Each capacitor in the dual circuit, is showing around 55 volts dc.
The dual circuit is at 9.1 watts now, though that can be lowered with matching capacitors.
The setup now has all matching led bulbs, 8 of them, though i can say now, it is like the sun blazing up here. 8)
I tested one of the warm white 12 volt bulbs the other night, without any modifications.
And on a 12 volt battery, while it was drawing 6.5 watts, it had no where near the practical illumination of these 8 modified led bulbs, it was like a spit in the wind. ???
peace love light
Edit: I was able to dig up a 450 volt-120uF capacitor and it did reduce the base current needed on the PNP transistor and was able to raise the resistance to 3 Kohm and still match the other led bulb circuit.
Both circuits are drawing 350 milliamps and a total of 700 milliamps at 11.74 volts or 8.2 watts and outputting the same light intensity.
Maybe the PNP transistor is a little different and/or other variables, causing the need for the lower base resistance.
  Hi,
I got my new 12 volt regulated 360 watt power supply up and running.  Tested 9 twelve volt 7 watt led bulbs and one 5 watt bulb in parallel. Totals 68 watts.   Voltage  11.73  current 4.99 amps.
Like looking into the sun the bulbs were that bright.  All of them   Totals 58.53 watts.  I saw your setup did a lot better so I am building it now.  I also bought a lux meter to check brightness levels.
.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on May 29, 2017, 04:28:54 AM
Hi magnetman, If you are going to use the 12 volt led bulbs, i removed the inner circuitry in my tests and had decent results, though did not develop it much further.
Though these 120 volt rated modified led bulbs I'm using now, are working very well with this setup.
There is absolutely no doubt, each of these led bulbs in this setup, is outputting much more light than 1 watt worth or 81 lumens.
I would say, each bulb is outputting at least 3.5 watts worth of light or around 285 lumens per bulb.
So that is a total of around 2280 lumens.
That is close to 3, 60 watt incandescent bulbs and it does look like that much light.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 01, 2017, 07:19:40 AM
Hi all, was posting about this particular oscillator light in another thread, felt it was good enough for its own thread.
It's the basic joule thief style circuit, using gutted 12 volt led bulbs rated at 7 watts from ebay.
The bulbs did contain a boost circuit inside them, to boost from 12 volts to around 21-24 volts dc, of course i removed that circuit from each bulb, for added efficiency.
The setup really is putting out a very good amount of light.
I was previously using a small number of turns on the ferrite c-core, then used many more coil layers and increased efficiency even further.
When looking at a Phillips 40 watt equivalent led bulb in a nearby can light, it is not much brighter than one of the 6000k pure white led bulbs.
Here is a drawing and some pics.
peace love light
  Regarding the 11+ volts and 330 milliamps you posted on your 12 volt drawing-- Was that reading taken between your 12 volt power supply output and your powered setup or was it taken across one of your lit bulbs on the setup output??
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 01, 2017, 07:21:50 PM
Hi magnetman, the 11.8 volts was taken at the power supply output, NOT the capacitor.
The capacitor voltage was a little above 20 volts i think.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 03, 2017, 04:47:03 AM
Hi magnetman, the 11.8 volts was taken at the power supply output, NOT the capacitor.
The capacitor voltage was a little above 20 volts i think.
peace love light
[/quote
Does moving the ferrite core in and out of the coil make a difference in the brightness of the bulbs or adjusting the resistor  value on the base of the transistor in the 12 volt setup??  Which of the two will effect bulb output brightness the most?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 03, 2017, 05:07:03 AM
Hi magnetman, moving the ferrite core does affect the brightness.
And of course, different base resistor values will vary the brightness.
The base resistor affects brightness the most.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 05, 2017, 03:09:36 AM
Hi magnetman, moving the ferrite core does affect the brightness.
And of course, different base resistor values will vary the brightness.
The base resistor affects brightness the most.
peace love light
I am having a hard time understanding just why almost the same voltage 12 volts and very low current will light up the bulbs very brightly.  As compared to a direct connection to the power source which puts out 12 volts and much current.  Can you explain what's happening??
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 05, 2017, 05:52:15 AM
Hi magnetman, which circuit are you speaking of, that uses 12 volts and uses very low current and lights bulbs brightly.
Just want to be sure, as I wouldn't want to mislead.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 06, 2017, 01:46:38 AM
Hi magnetman, which circuit are you speaking of, that uses 12 volts and uses very low current and lights bulbs brightly.
Just want to be sure, as I wouldn't want to mislead.
peace love light
I am speaking of that circuit that delivers 11 plus volts and 333 milliamperes of current.  How can that setup deliver the same light output as a 11plus volt say 4 amps of current?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 06, 2017, 09:54:01 PM
Hi magnetman, ok, i'm clear on your question now.
I'm not sure it delivers the same light output and I doubt it does.
Though it does output good light for the input power used.
I think one of the main reasons for the efficiency, is because in this particular setup, it is using a photo flash type capacitor to collect the radiant spikes, from the coils collapsing field.
This type of capacitor is said to have an electret effect, where it tends to want to recharge itself, this pushes the capacitor voltage higher in voltage and allows brighter led light.
This type of capacitor has very low resistance or esr and loves these high voltage, low current radiant spikes.
The radiant spikes into the capacitor, are also encouraging this type of capacitor to create more of that elecret effect.
Without the photo flash type capacitor in place, the led light output is not as good, maybe half the brightness.
Also, the coil/core plays a roll of course, with any particular ferrite core or coil, there is a sweet spot as far as frequency and duty cycle.
I hope that helps, what are your thoughts on why it is so efficient.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 07, 2017, 03:50:37 AM
Hi magnetman, ok, i'm clear on your question now.
I'm not sure it delivers the same light output and I doubt it does.
Though it does output good light for the input power used.
I think one of the main reasons for the efficiency, is because in this particular setup, it is using a photo flash type capacitor to collect the radiant spikes, from the coils collapsing field.
This type of capacitor is said to have an electret effect, where it tends to want to recharge itself, this pushes the capacitor voltage higher in voltage and allows brighter led light.
This type of capacitor has very low resistance or esr and loves these high voltage, low current radiant spikes.
The radiant spikes into the capacitor, are also encouraging this type of capacitor to create more of that elecret effect.
Without the photo flash type capacitor in place, the led light output is not as good, maybe half the brightness.
Also, the coil/core plays a roll of course, with any particular ferrite core or coil, there is a sweet spot as far as frequency and duty cycle.
I hope that helps, what are your thoughts on why it is so efficient.
peace love light


What type of photo flash capacitor did you use? I see there are many types of caps.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 07, 2017, 07:00:53 AM
Hi magnetman, correction, i am using a jamicon low esr electrolytic taken from a power supply and a KMG.
Probably good enough, since the capacitors are not being dumped, though true photo flash capacitors might work better.
I didn't have matching caps around, so the jamicon is a 450volt-150uF and KMG is 450 volt-120uF, though both are low esr, just not photo flash rated.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on June 08, 2017, 04:06:28 AM
Hi Skywatcher,

I am having mixed results with the circuit. My 220v rated 5w led bulbs will light on at full brightness UNMODIFIED. It will NOT light when modified. A 220v rated 7w when connected separately (with all 5w removed) will blink continuously unmodified but shines brighter. I haven't tried to modify it, but what is causing the blinking?

Thanks in advance
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 08, 2017, 07:30:06 AM
Hi naija, make sure your 5 watt modified led bulb is in proper polarity orientation and if it still does not light, your coil may not be outputting enough voltage for those higher 220 volt bulbs, you would need more coil turns then.
My bulbs are lighting brightly with around 56 volts showing on the buffer capacitor, so the original driver circuitry was a step-down circuit.
Your 7 watt bulb is blinking, because the driver circuitry inside the bulb, is not getting enough power to keep the circuit running continuously.
Most led bulbs have different circuit types inside and they waste power, which is why i removed all driver circuitry from my led bulbs.
By doing so, my modified 5.5 watt-120 volt led bulbs, light bright enough to burn spots into my eyes instantly from 8 feet away.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on June 08, 2017, 09:03:31 AM
Hi naija, make sure your 5 watt modified led bulb is in proper polarity orientation and if it still does not light, your coil may not be outputting enough voltage for those higher 220 volt bulbs, you would need more coil turns then.
My bulbs are lighting brightly with around 56 volts showing on the buffer capacitor, so the original driver circuitry was a step-down circuit.
Your 7 watt bulb is blinking, because the driver circuitry inside the bulb, is not getting enough power to keep the circuit running continuously.
Most led bulbs have different circuit types inside and they waste power, which is why i removed all driver circuitry from my led bulbs.
By doing so, my modified 5.5 watt-120 volt led bulbs, light bright enough to burn spots into my eyes instantly from 8 feet away.
peace love light

Thank you for your quick response Skywatcher. The voltage at my own buffer capacitor with load of one 5w bulb 220v rating is 320V! Should I increase the amount of turns on the coil or decrease?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: casiano on June 08, 2017, 12:35:57 PM
Test
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 08, 2017, 10:25:16 PM
Hi naija, So if you checked that the led bulb is in proper polarity orientation, connected to the buffer capacitor, meaning flip the led bulb connections around and see if it lights up.
And if it still does not light up, then one or more of the leds on the board are blown, or you did not modify it properly and you have a faulty connection somewhere in the bulb itself.
You have to be careful when connecting the modified led bulbs to the capacitor, if the capacitor has much voltage above the rated led board forward voltage, that capacitor will dump high current and blow the leds very quickly and you will see a small black dot at the center of a blown led.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on June 08, 2017, 11:21:36 PM
Hi naija, So if you checked that the led bulb is in proper polarity orientation, connected to the buffer capacitor, meaning flip the led bulb connections around and see if it lights up.
And if it still does not light up, then one or more of the leds on the board are blown, or you did not modify it properly and you have a faulty connection somewhere in the bulb itself.
You have to be careful when connecting the modified led bulbs to the capacitor, if the capacitor has much voltage above the rated led board forward voltage, that capacitor will dump high current and blow the leds very quickly and you will see a small black dot at the center of a blown led.
peace love light

Thank you Skywatcher, I see the red blobs on the center of ALL the leds. Now, how do I solve this problem. Should I use the same capacitor value in the bulb circuitry to avoid destroying another bulb? In this case, 400v 4.7uf?
Should I reduce the number of coils to reduce the 320V across the buffer capacitor?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on June 08, 2017, 11:43:43 PM
Hi Skywatcher, I just measured the voltage drawn by the leds when connected to normal grid electricity and it is 8.5V. The internal circuitry steps down 220V to 8.5V in order to drive the leds. Now, what size of buffer capacitor do you recommend to use in your circuit to operate these 5w bulbs without blowing them up?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 09, 2017, 04:53:31 AM
Hi naija, a 400 volt, 100uF-150uF capacitor is fine, 4.7uF might be a little too small, not sure.
If that is true, that your led board is rated at 8.5 volts, then 320 volts will surely blow them every time.
So i assume you removed the internal circuitry from the led bulb that is blown, i should have told you to verify the forward voltage of the led board by applying voltage incrementally with straight DC current.
So i am telling you now, any led bulb you modify, check to see the approximate forward voltage.
So the main problem with your led bulb, if you are using 12 volt input to the oscillator, then the modified led bulb will see the full 12 volts, direct from your battery or power supply and instantly fry the leds with all that current.
If you are going to continue to use that model of modified led bulb, you would need to use probably 4 volt input to the oscillator.
This is to prevent direct current flow into the leds and only the flyback spikes can flow into capacitor and/or leds.
I have found, that these radiant spikes like to charge to a higher voltage level, because they are naturally higher voltage and low current.
So the modified led bulbs i use, match this output better.
Can you share some pictures of your setup.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: casiano on June 10, 2017, 08:11:39 PM
Hi Skywatcher.
I replicated your circuit and it gives interesting results.
First i used 9 led bulbs of 7 watts each at 220v with an              old 5v phone charger and it lights pretty good.Then i         modified all the bulbs and the bulbs are rated at 36v but            the light its far better.
Now i switched the input with 3 1.5v batteries but at output i
conected another 3 1.5 batteries plus 3 leds in paralel.
I used the light for 12 hours and the batteries still has the
same voltage.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 11, 2017, 05:34:35 AM
Hi casiano, glad to hear you are having good results, do you have any pictures or video to share.

I picked up 4 more of the same model led bulbs today and converted 2 so far, so the setup now has 10 modified led bulbs and will have 12 total, when i modify the other 2.
There is now even more useful light illumination and the wattage reduced to 7.16 watts, from 8.2 watts.
Based on these results so far, i plan to pick up another 4 pack of these led bulbs, so i will then have a total of 16 modified led bulbs.
Actually, it appears to me, that by adding more led bulbs, we can maintain the same practical illumination as the 8 led bulbs, while reducing the input watts.
Because i notice the area where i did not add more led bulbs yet, it is slightly dimmer, but not much at all, though more illumination in the areas where i just added the 2 latest led bulbs.
So, i conclude, that when i add the other 2 led bulbs to the area where it is slightly dimmer now, that will compensate and probably lower the input watts even further.
This seems to be confirming my theory, that we can get more and more practical light output, by using more and more led diode material.
Let me explain this another way.
Say we start with one 8.5 watt modified led bulb, powered to the full 8.5 watts and this bulb outputs around 800 lumens.
The leds from that bulb may be intense, though the practical, full area illuminating capability of just one bulb is weak.
However, if we take 8 of those bulbs, using this oscillator setup and use the same 8.5 watt input, the light intensity may be somewhat lower, though the real world practical illuminating effect is far greater.
And i know some claim this is just because we are spreading around the light, though i say it is because we are using more led diode material, somewhat along the lines of Joseph Newmans teachings.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: Naija on June 11, 2017, 07:20:01 AM
Hi casiano, glad to hear you are having good results, do you have any pictures or video to share.

I picked up 4 more of the same model led bulbs today and converted 2 so far, so the setup now has 10 modified led bulbs and will have 12 total, when i modify the other 2.
There is now even more useful light illumination and the wattage reduced to 7.16 watts, from 8.2 watts.
Based on these results so far, i plan to pick up another 4 pack of these led bulbs, so i will then have a total of 16 modified led bulbs.
Actually, it appears to me, that by adding more led bulbs, we can maintain the same practical illumination as the 8 led bulbs, while reducing the input watts.
Because i notice the area where i did not add more led bulbs yet, it is slightly dimmer, but not much at all, though more illumination in the areas where i just added the 2 latest led bulbs.
So, i conclude, that when i add the other 2 led bulbs to the area where it is slightly dimmer now, that will compensate and probably lower the input watts even further.
This seems to be confirming my theory, that we can get more and more practical light output, by using more and more led diode material.
Let me explain this another way.
Say we start with one 8.5 watt modified led bulb, powered to the full 8.5 watts and this bulb outputs around 800 lumens.
The leds from that bulb may be intense, though the practical, full area illuminating capability of just one bulb is weak.
However, if we take 8 of those bulbs, using this oscillator setup and use the same 8.5 watt input, the light intensity may be somewhat lower, though the real world practical illuminating effect is far greater.
And i know some claim this is just because we are spreading around the light, though i say it is because we are using more led diode material, somewhat along the lines of Joseph Newmans teachings.
peace love light

Hi Skywatcher, I don't know why but am not able to upload the picture of my setup via my android device. But I will do so when am able to work from a computer. Meanwhile, I have been able to light up my modified 5w led bulbs using a 12ah 12v battery. It is a little less bright in comparison to an unmodified 5w powered by grid power. I am not yet able to achieve the illuminance that will burn spots in the eye or the heavenly effect as you earlier described, but I will keep on tweaking.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 11, 2017, 07:20:47 AM
Hi all, so something sparked my curiosity, and was pondering this idea about using more led diode material.
So i decided to hook up my boost converter and dial it in to a similar voltage that my oscillator capacitor was at.
This is not meant as a comparison between my oscillator and the boost converter, as my oscillator is not built as efficient as it could be.
This test was meant to see if the boost converter was worth using and to have a more controlled higher voltage power supply, to test the more led diode material idea.
Well, i hooked up all 10 modified led bulbs to the boost converter and the bulbs are a little brighter and slightly more white in color, this compared with my most recent testing with my setup at 7.2 watts.
This is nice, even nicer is the fact that it is using only 5.2 watts from a 12 volt tractor battery to accomplish this,
or 420 milliamps at 12.36 volts.
Of course for normal use, i will use the 12 volt computer power supply, to power the boost converter.
Seems to be a very useful setup.
Here is a link to the boost converter I'm using.
https://www.banggood.com/DC-DC-600W-10-60V-to-12-80V-Boost-Converter-Step-up-Module-Power-Supply-p-1041640.html?rmmds=buy (https://www.banggood.com/DC-DC-600W-10-60V-to-12-80V-Boost-Converter-Step-up-Module-Power-Supply-p-1041640.html?rmmds=buy)
peace love light
 
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: casiano on June 11, 2017, 05:11:12 PM
5 modified led bulbs with the circuit
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: casiano on June 11, 2017, 05:16:11 PM
So,the circuit without the load draws 7.8watts,but when i turn on the lights the power consumption is always 7.8watts.
Could someone explain why?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 11, 2017, 05:21:56 PM
Hi casiano, very nice, thanks for sharing the pictures, just like they say, they are worth a thousand words, hehe.
Yes, your coil/core looks like it would be more efficient than mine.
If you really want to make those led boards effective, spread and space them out somehow and then add some more if you can get them.
Either way, looks good.
peace love light

Edit: the input stays the same, because once the capacitor is powered up, the only thing adding to the output is the spikes and that doesn't affect what you input, because that is after the fact.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: casiano on June 11, 2017, 06:14:04 PM
Hi Skywatcher.thanks for your words.
Yes,i use a choke coil,the bigger the better it seems.Im planning to get a bigger one.
For now i have only 5 led bulbs rated at 36v ,the other ones are different voltage,so i cannot use them.


Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: casiano on June 11, 2017, 06:27:01 PM
The next step is to put 20 or 30 led bulbs to this circuit.
My nearby electronic store has this led bulb at 1.69 euro.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 12, 2017, 04:24:40 AM
Hi casiano, thanks for sharing the information.
Keep in mind, those 12 watt led bulbs will require more input power to get them to high intensity levels, especially if they are all modified and placed in parallel.
That is one of the reasons i chose the 5.5 watt versions or 40 watt incandescent equivalent, so i could get them to a good intensity for lower input.
I installed the other 2 bulbs, now have a total of 12 modified led bulbs in parallel.
The practical illumination is even better and the more efficient boost converter also helps.
Next step, get 4 more led bulbs to modify and add to the parallel string.
peace love light
Here is pic of 12 bulbs, using 7.8 watts.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: casiano on June 12, 2017, 07:53:31 AM
Yes you are right Skywatcher,the modified 12w led bulb needs 65v to light,instead the 7w bulb needs only 36v.So, the lower the better.I will try the 3w bulb to see what happens.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 12, 2017, 08:28:27 AM
Can someone tell me how to determine F stop values using a candle power meter?  I have a lux/candle power meter and there must be a way to determine F stops using some sort of equation or equations.  Say I measured  100 candlepower and my next reading was 500 candle power. What f stop value can be found between readings?? 1/3 ?? 1/2??  3/4??  1??  F stop
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 13, 2017, 02:39:56 AM
Hi all, was posting about this particular oscillator light in another thread, felt it was good enough for its own thread.
It's the basic joule thief style circuit, using gutted 12 volt led bulbs rated at 7 watts from ebay.
The bulbs did contain a boost circuit inside them, to boost from 12 volts to around 21-24 volts dc, of course i removed that circuit from each bulb, for added efficiency.
The setup really is putting out a very good amount of light.
I was previously using a small number of turns on the ferrite c-core, then used many more coil layers and increased efficiency even further.
When looking at a Phillips 40 watt equivalent led bulb in a nearby can light, it is not much brighter than one of the 6000k pure white led bulbs.

Question:  How bright is your neon bulb when you are powering the bulbs you used in your 12 volt circuit?
I just finished replicating your 12 volt circuit with some modifications.  Have not tested it yet but my neon bulb lights up with the circuit not connected to any bulbs.  Just powered by a 12 volt battery.  More to come....
Here is a drawing and some pics.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 13, 2017, 03:43:36 AM
Hi magnetman, without a load off the flyback diode, the neon will probably always light up.
If i recall correctly, a single neon did not light up with the 12 volt 7 watt modified led bulbs as load.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 13, 2017, 06:13:08 AM
Hi magnetman, without a load off the flyback diode, the neon will probably always light up.
If i recall correctly, a single neon did not light up with the 12 volt 7 watt modified led bulbs as load.
peace love light
I just competed testing my replication of your 12 volt setup. I used a single unmodified 12 volt five watt led bulb to see what happens. Connected directly to a 12 volt battery the bulb burns with a 379 candlepower rating.  When I place my replication of your 12 volt setup between the battery and bulb the neon light goes out and at first the bulb burned with a 1300 candle power rating and that lasted for 3 minutes. Until the insides of the bulb electronic package failed and it quit burning.  Now I am wandering if 9 seven watt led bulbs might go out the same way.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 13, 2017, 07:53:39 PM
Hi magnetman, sorry that your bulb fried and i know the reason why.
I tested mine as modified bulbs, meaning, if you leave the inner circuitry, that circuit will see far more than the 12 volts the bulb is rated for.
Because my circuit is a boost converter and the buffer capacitor is going to be above 12 volts and thus pushing too much current through the bulbs inner circuitry. :o
My 12 volt led bulbs, modified led circuit board forward voltage is around 20-24 volts, which then makes it safe for that circuit.
It would be ok, to power your 12 volt bulbs, non-modified, using my circuit, if you ran the diode to positive of capacitor and then the negative of capacitor, to the positive of your power supply, then place your led bulb in parallel with capacitor, though not sure how efficient that might be.
In that configuration, we avoid the direct 12 volts coming from your power supply and the current flow potential that creates.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 13, 2017, 08:18:27 PM
Hi magnetman, sorry that your bulb fried and i know the reason why.
I tested mine as modified bulbs, meaning, if you leave the inner circuitry, that circuit will see far more than the 12 volts the bulb is rated for.
Because my circuit is a boost converter and the buffer capacitor is going to be above 12 volts and thus pushing too much current through the bulbs inner circuitry. :o
My 12 volt led bulbs, modified led circuit board forward voltage is around 20-24 volts, which then makes it safe for that circuit.
It would be ok, to power your 12 volt bulbs, non-modified, using my circuit, if you ran the diode to positive of capacitor and then the negative of capacitor, to the positive of your power supply, then place your led bulb in parallel with capacitor, though not sure how efficient that might be.
In that configuration, we avoid the direct 12 volts coming from your power supply and the current flow potential that creates.
peace love light


 I found that my modified replication output is 354.7 volts dc.  So using three 115 volt led bulbs in series and unmodified should work.  I am going to try it.   354.7  divided by 115 is 3.08   I know the bulbs are AC but the DC output is composed of spiked energy.  I just tried it with one 115 volt 10 watt led bulb and the bulb rapidly pulsed very-very  brightly and did not burn out.  It was unmodified.  Next I am going to power 3  ten watt 115 volt led bulbs in series with my very large 360 watt 12 volt power supply ( Not my 1.2 amp hour 12 volt battery ) and see if the pulsing stops. I think more current is needed to keep the setup capacitor fully loaded all the time so the bulbs won't pulse.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 14, 2017, 04:45:57 AM
Hi magnetman, nice looking setup you have there, thanks for sharing.
Using 3 non-modified led bulbs in series could be quite efficient, considering the radiant spikes like loads closer matched to their qualities.
As long as the driver circuitry within those bulbs, is getting a high enough voltage and current, the pulsing should stop.
Look forward to your results.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 14, 2017, 06:21:01 PM
Hi magnetman, nice looking setup you have there, thanks for sharing.
Using 3 non-modified led bulbs in series could be quite efficient, considering the radiant spikes like loads closer matched to their qualities.
As long as the driver circuitry within those bulbs, is getting a high enough voltage and current, the pulsing should stop.
Look forward to your results.
peace love light


If any one is interested in my modified replication specs let me know and I will post what changes were made.  By far the coil winding is most simple to do as far as changes to the first 12 volt  original post by Sky Watcher 123.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 19, 2017, 09:36:46 PM
Hi all, so i was wondering if i could equal or exceed the efficiency of the 600 watt boost converter that was bought from the net.
I have equaled or improved the efficiency by a little so far.
I used the joule thief circuit, with the NPN 2SC5359 transistor, 1 Kohm base resistor and same buffer capacitor.
Also used the same ferrite tube core, though this time i used a bifilar 18awg. magnet wire on the open core.
The circuit uses 1.5 amps at 11.56 volts or 17.34 watts.
I wonder if another layer of 18awg. wire could improve efficiency or even a thicker gauge wire, with even more layers.
I will try another layer of 18awg. magnet wire and see, will try in series and parallel and compare.
peace love light
 
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 21, 2017, 06:41:25 AM
Hi all, started testing a different configuration and the results so far, are promising.
Measured the volts and amps going in and volts and amps going out into the charge battery and that comes to 81.3% efficiency.
The thing is, we are getting the good light and the charging, so 81% may be lower than it actually is.
Thoughts welcome.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 22, 2017, 03:41:46 PM
Hi all, started testing a different configuration and the results so far, are promising.
Measured the volts and amps going in and volts and amps going out into the charge battery and that comes to 81.3% efficiency.
The thing is, we are getting the good light and the charging, so 81% may be lower than it actually is.
Thoughts welcome.
peace love light

What was the amp hour rating of the batteries you used?   I have a lot of 1.2 amp hour 12 volt batteries. Might they work? I see you can buy this same 600 watt boost converter on Ebay for an inexpensive price.

Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 22, 2017, 05:20:00 PM
Hi magnetman, the tractor batteries i'm using are 235cca, which some say are equivalent to around 13 amp hours, or 160 watt/hours.
Those 1.2 amp hour batteries will work fine, as long as you stay within the C20 charge rate for the battery, for best efficiency and battery health.
Bear in mind, my setup at the moment is using a higher voltage to charge the battery, so not sure how healthy that is for these batteries.
I did try the 12 volt 7 watt bulbs, modified and non-modified and they work also, though the non-modified 12 volt led bulbs are not as efficient in this split positive arrangement.
This 600 watt boost converter is a very useful device, so it's worth having anyway.
So if this setup runs for more than around 26 hours, with the wattage being drawn from the single 12 volt battery, then it is showing that we are recycling the energy and it is a useful setup.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 26, 2017, 03:48:24 AM
Hi magnetman, the tractor batteries i'm using are 235cca, which some say are equivalent to around 13 amp hours, or 160 watt/hours.
Those 1.2 amp hour batteries will work fine, as long as you stay within the C20 charge rate for the battery, for best efficiency and battery health.
Bear in mind, my setup at the moment is using a higher voltage to charge the battery, so not sure how healthy that is for these batteries.
I did try the 12 volt 7 watt bulbs, modified and non-modified and they work also, though the non-modified 12 volt led bulbs are not as efficient in this split positive arrangement.
This 600 watt boost converter is a very useful device, so it's worth having anyway.
So if this setup runs for more than around 26 hours, with the wattage being drawn from the single 12 volt battery, then it is showing that we are recycling the energy and it is a useful setup.
peace love light

Can you show with detailed photos how you modified the bulbs you bought from Meijers and also the box the bulbs came in.  I plan to replicate this circuit and will use the same thing you did.  All my replication of your original 12 volt circuit does is pulse the bulbs. A larger uf capacitor was no help.

Do you think I can hook up a 100 watt solar panel to your boost converter setup??  Would that work out as the power battery is going to be charged by the solar panel controller while the boost controller charges the charge battery. All the while the bulbs are lit.  A win- win situation for free energy.  I have that panel coming.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 26, 2017, 07:06:14 PM
Hi all, started testing a different configuration and the results so far, are promising.
Measured the volts and amps going in and volts and amps going out into the charge battery and that comes to 81.3% efficiency.
The thing is, we are getting the good light and the charging, so 81% may be lower than it actually is.
Thoughts welcome.
peace love light

There are 2 adjustment screws in the boost converter,   What are their function?  You don't have to adjust
the input much for 12 volts but what do you adjust the output for?  What kind of voltage and current does each modified  5.5 watt bulb take or require for full brilliance?? I am going to buy a boost converter and replicate what you did so that's why all the questions.    Can I stack 6 seven watt twelve volt  led unmodified  bulbs in series  {72 volts}  and power them without the split positive charge feature?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 26, 2017, 07:49:46 PM
Hi magnetman, I see no problem with using the solar panel.
One screw is for voltage output adjustment, the other is for current limiting.
I have mine set to 66.5 volts output, that is not full brilliance, just for testing, as i'm still not sure this 12 volt tractor battery is liking such high voltage and low amperage.
You should be able to put seven of your 12 volt-7 watt un-modified led bulbs in series, powered by the boost converter, i think it will go that high in voltage.
If not, six in series for sure.
Though if your going to just use the boost converter output and no split positive stuff, you can do a series/parallel setup with your led bulbs.
Here are some pictures of the modified led bulbs.
This is the closest bulb i could find on the website, mine are non-dimmable though and they came in a four pack.
https://www.meijer.com/product/home-improvement-auto/electrical/light-bulbs/led-bulbs/meijer-led-55w-a19-es-soft-white-40weq/t1/t1-873/t2/t2-10048/t3/t3-1123/t4/t4-2200/70882034106.uts (https://www.meijer.com/product/home-improvement-auto/electrical/light-bulbs/led-bulbs/meijer-led-55w-a19-es-soft-white-40weq/t1/t1-873/t2/t2-10048/t3/t3-1123/t4/t4-2200/70882034106.uts)
peace love light

Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 26, 2017, 09:03:24 PM
Hi magnetman, I see no problem with using the solar panel.
One screw is for voltage output adjustment, the other is for current limiting.
I have mine set to 66.5 volts output, that is not full brilliance, just for testing, as i'm still not sure this 12 volt tractor battery is liking such high voltage and low amperage.
You should be able to put seven of your 12 volt-7 watt un-modified led bulbs in series, powered by the boost converter, i think it will go that high in voltage.
If not, six in series for sure.
Though if your going to just use the boost converter output and no split positive stuff, you can do a series/parallel setup with your led bulbs.
Here are some pictures of the modified led bulbs.
This is the closest bulb i could find on the website, mine are non-dimmable though and they came in a four pack.
https://www.meijer.com/product/home-improvement-auto/electrical/light-bulbs/led-bulbs/meijer-led-55w-a19-es-soft-white-40weq/t1/t1-873/t2/t2-10048/t3/t3-1123/t4/t4-2200/70882034106.uts (https://www.meijer.com/product/home-improvement-auto/electrical/light-bulbs/led-bulbs/meijer-led-55w-a19-es-soft-white-40weq/t1/t1-873/t2/t2-10048/t3/t3-1123/t4/t4-2200/70882034106.uts)
peace love light

So the INPUT on the boost converter is not adjustable.  Its the OUTPUT that's adjustable.  You can have 10-60 volts input and be able to adjust the output voltage and current from 12 to 80 volts?  Is all above correct?  If so I determined a  series/parallel  way to power 9 seven watt 12 volt unmodified led bulbs using 36 volts and ??? current.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 26, 2017, 09:36:46 PM
Hi magnetman, yes above is correct.
Then you can limit the current at the voltage you choose.
I will say this though, removing the circuitry from any of these led bulbs, improves efficiency quite a bit.
Plus, even the best inner drive circuits, will only last so long.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 27, 2017, 05:06:21 AM
Hi magnetman, yes above is correct.
Then you can limit the current at the voltage you choose.
I will say this though, removing the circuitry from any of these led bulbs, improves efficiency quite a bit.
Plus, even the best inner drive circuits, will only last so long.
peace love light

Will the boost converter be able to light 9 seven watt unmodified 12 volt bulbs? -- Three groups of three bulbs {in parallel} --  Connected in series with each other so that 36 volts powers all through series connections ??  Do you adjust the output voltage before you turn the lamps on or after the bulbs at lit?
There is a voltage drop whenever a load is applied.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 27, 2017, 05:48:42 AM
Hi magnetman, yes, the 600 watt boost converter i have will most definitely power those 9 bulbs, easily.
Hook up a 12 volt power source to the boost converter, then use a volt meter to check the output voltage, then adjust to 30 volts, then hook up your bulbs and raise voltage to 36 volts.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 28, 2017, 02:42:15 AM
Hi magnetman, yes, the 600 watt boost converter i have will most definitely power those 9 bulbs, easily.
Hook up a 12 volt power source to the boost converter, then use a volt meter to check the output voltage, then adjust to 30 volts, then hook up your bulbs and raise voltage to 36 volts.
peace love light

What do you think of this 900 watt boost converter?   Its output is 10 to 120 volts at 15 amps.
That means you can power 110/120 volt unmodified bulbs with it using 12 volts input as well as any set voltage from 14 volts up to 120 volts. (Output being 2 volts greater than input) ITS DIGITAL!

http://www.ebay.com/itm/New-900W-DC-DC-Boost-Converter-8-60V-to-10-120V-15A-Step-Up-Power-Supply-Module-/291861952982?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 28, 2017, 04:38:08 AM
Hi magnetman, that looks like a useful boost converter.
Not sure it's as efficient as the one i have, though the description on mine says up to 95% efficiency, where this one states 85% efficiency.
So mine is probably around the same efficiency.
What experiments do you plan to try.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 28, 2017, 05:35:26 AM
Hi magnetman, that looks like a useful boost converter.
Not sure it's as efficient as the one i have, though the description on mine says up to 95% efficiency, where this one states 85% efficiency.
So mine is probably around the same efficiency.
What experiments do you plan to try.
peace love light

I am going to try lighting 9 seven watt 12 volt bulbs with 36 volts then try three  115 volt 10 watt bulbs in parallel.  I just bought that 900 watt booster converter.  Then I will modify the bulbs and work it that way.

In all cases I now have standard illumination figures to go with using my candle power meter.
So now I can compare a bulb illumination to a standard and adjust the setups output till I have the same candle power reading.  Then compare both results as far as what voltage, current. and watt values have been established.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on June 28, 2017, 07:12:51 PM
Hi magnetman, sounds good, look forward to your results.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 29, 2017, 06:58:01 PM
Hi magnetman, sounds good, look forward to your results.
peace love light

Directly plugged into 12 07 DC volts ONE 12 volt 7 watt DC led bulb shows a current of .59 amps and a watt rating of 7.1 watts. Candlepower 2040

Directly plugged into 122.3 AC (house) voltage ONE 10 watt AC bulb shows a current of .0809 amps and a watt value of 9.9 watts.  Candlepower 3700

Now by using the boost converter module If can get lower watt values with the same candlepower illumination that will be something.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: lancaIV on June 29, 2017, 07:48:45 PM
hello magnetman,
I am really interested in your search findings and results which will hopefully being a success !

I have now your given numbers related some questions :
the AC bulb consumes more power than the DC LED ,
but by candlepower/Watt relationship the  AC bulb gives 370 cp/W
and the DC  LED 290 cp/W.
Correct ?

cd(Candela) versus lx(lux) versus lm(lumen) definition

What do you mean with "candlepower"/"sterian candlepower" and how do you  measure your light intensity results ?

12,57 (4 x pi) Units lumen = 1 Unit (sterian)candlepower :
 your given candlepower (3700 and 2040) numbers multiplicated with 12,57
or AC bulb 3700/(12,57 x 9,9) and DC LED 2040/(12,57 x 7,1) as
                             lumen per Watt

AC bulb : incandescant bulb ? Halogen ?

Sincerely
             OCWL

p.s.:  DE 3912514 lamp application Dr.Pavel Imris
        nice numbers which are actually only surpassed by the Cree LEDs
        and Phillips Lab LED prototypes 200-300 lumen/W
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on June 30, 2017, 05:51:38 AM
hello magnetman,
I am really interested in your search findings and results which will hopefully being a success !

I have now your given numbers related some questions :
the AC bulb consumes more power than the DC LED ,
but by candlepower/Watt relationship the  AC bulb gives 370 cp/W
and the DC  LED 290 cp/W.
Correct ?

cd(Candela) versus lx(lux) versus lm(lumen) definition

What do you mean with "candlepower"/"sterian candlepower" and how do you  measure your light intensity results ?

12,57 (4 x pi) Units lumen = 1 Unit (sterian)candlepower :
 your given candlepower (3700 and 2040) numbers multiplicated with 12,57
or AC bulb 3700/(12,57 x 9,9) and DC LED 2040/(12,57 x 7,1) as
                             lumen per Watt

AC bulb : incandescant bulb ? Halogen ?

Sincerely
             OCWL

p.s.:  DE 3912514 lamp application Dr.Pavel Imris
        nice numbers which are actually only surpassed by the Cree LEDs
        and Phillips Lab LED prototypes 200-300 lumen/W
hello magnetman,
I am really interested in your search findings and results which will hopefully being a success !

I have now your given numbers related some questions :
the AC bulb consumes more power than the DC LED ,
but by candlepower/Watt relationship the  AC bulb gives 370 cp/W
and the DC  LED 290 cp/W.
Correct ?

cd(Candela) versus lx(lux) versus lm(lumen) definition

What do you mean with "candlepower"/"sterian candlepower" and how do you  measure your light intensity results ?

12,57 (4 x pi) Units lumen = 1 Unit (sterian)candlepower :
 your given candlepower (3700 and 2040) numbers multiplicated with 12,57
or AC bulb 3700/(12,57 x 9,9) and DC LED 2040/(12,57 x 7,1) as
                             lumen per Watt

AC bulb : incandescant bulb ? Halogen ?

Sincerely
             OCWL

p.s.:  DE 3912514 lamp application Dr.Pavel Imris
        nice numbers which are actually only surpassed by the Cree LEDs
        and Phillips Lab LED prototypes 200-300 lumen/W

All led bulbs used. Non modified.  Used hemisphere off a large led bulb and fitted it onto my lux/foot candle meter to have exact clearance from top of hemisphere to top of any lit bulb.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: lancaIV on June 30, 2017, 08:28:40 AM
https://en.wikipedia.org/wiki/Foot-candle
quote: "Thus one foot-candle is equal to one lumen per square foot or approximately 10.764 lux" (https://en.wikipedia.org/wiki/Lux)

Okay,thanks a lot .

Sincerely
              OCWL
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on July 09, 2017, 04:44:23 AM
I am going to try lighting 9 seven watt 12 volt bulbs with 36 volts then try three  115 volt 10 watt bulbs in parallel.  I just bought that 900 watt booster converter.  Then I will modify the bulbs and work it that way.

In all cases I now have standard illumination figures to go with using my candle power meter.
So now I can compare a bulb illumination to a standard and adjust the setups output till I have the same candle power reading.  Then compare both results as far as what voltage, current. and watt values have been established.

I got my boost converter and set it to 36 volts,1 amp.  When I powered it up to 3 twelve volt bulbs in series the module electronic package inside each bulb burned out. Before the modules burned out the light output was the highest I had ever seen.  What safe dc booster voltage will the bulb leds operate with the burned out module removed and a direct connection made?   Looking at all this however I now can see a much lower watt figure to operate the bulbs using a DC boost converter.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on July 09, 2017, 07:02:17 AM
Hi magnetman, sorry you fried the drive circuits on your bulbs.
It's probably because the drive circuit has a full wave bridge going into the circuit and this means you were not actually placing them in series.
It was probably the same as placing them in parallel, minus diode voltage drops, so then each circuit was getting 36 volts.
The forward voltage for the led board on my 12 volt led bulbs, is around 20 to 24 volts.
Best to start low and have amp meter connected to input of boost converter, until you get to the 7 watt input or a little higher, taking efficiency loss into consideration.
Then you can check the output voltage of boost converter and see the max voltage of each led board.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on July 09, 2017, 07:03:00 PM
I have taken the burned out module out of ""ONE"" 12 volt 7 watt LED bulb and ran wires straight from the bulb base to the bulb - + bulb light plate. In this configuration what safe booster converter voltage would you recommend as a starter with no split positive battery charging involved for one modified bulb?
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on July 09, 2017, 07:22:33 PM
Hi magnetman, the boost converter will not allow you to go below the input voltage, so start from there and raise output voltage while having an amp meter on the input of boost converter.
Then adjust output voltage so you get around 7 watts input, or whatever the wattage of your led bulb is and the voltage at the output of your boost converter, under load, is your max. led board voltage.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on July 10, 2017, 02:48:09 AM
Hi magnetman, the boost converter will not allow you to go below the input voltage, so start from there and raise output voltage while having an amp meter on the input of boost converter.
Then adjust output voltage so you get around 7 watts input, or whatever the wattage of your led bulb is and the voltage at the output of your boost converter, under load, is your max. led board voltage.
peace love light
[/quote

After burning out 5 led bulbs module packages I now found what will work with a unmodified bulb using the booster converter.   12.5 volts to a single 7 watt led 12 volt bulb at .53 amps.     6.625  watts is the OUTPUT on a parallel connected single 7 watt bulb.  BULB CONTINUOUSLY STAYED BRILLIANTLY LIT.  Nothing burned out.    INPUT to the bulb was 11.75 volts at .67 amps.  7.8725 watts.  84.15% efficient.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on July 10, 2017, 06:29:29 PM
Hi magnetman, looks good, are you going to add more bulbs in parallel and are you going to try and compare that to the modified bulbs, since you have them anyway from the fry mishap.
That boost converter sure looks nice, with the digital push button settings, may have to get one of those.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on July 10, 2017, 07:33:40 PM
Hi magnetman, looks good, are you going to add more bulbs in parallel and are you going to try and compare that to the modified bulbs, since you have them anyway from the fry mishap.
That boost converter sure looks nice, with the digital push button settings, may have to get one of those.
peace love light
The fry mishap took out the bulb light plates also.  Will order more 7 watt 12 volt bulbs and put 10 in parallel unmodified and see what the results are.   The 900 watt boost converter has a real nice feature.  When you set up the voltage to where you want it -- a press of a button shows the current also. All readings are OUTPUT.  I have another INPUT meter that shows voltage, current, and watt value. I dropped the voltage down to 12.31 volts to be sure I don't burn out more bulb modules.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on July 11, 2017, 02:53:49 AM
Hi SkyWatcher 123,

Do you think the boost converter with split positive light and charge method might work with ten 7 watt 12 volt unmodified bulbs in parallel?   I have many 12 volt 1.2 amp hour batteries.  I would only power all the parallel bulbs with 12.31 volts to be on the safe side. Why I am keeping with the unmodified bulbs is because if this pans out no one will modify a light bulb later.  They would rather just be lazy and buy a stock bulb- plug it in for results.  This goes for 120 volt AC led bubs also.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on July 11, 2017, 09:00:59 AM
Hi magnetman, yes it would work, though the current flow would be high and would require some big capacity batteries, to be closer to the C/20 healthy charge/discharge rate.
My results using the split positive method off the booster output, powering a 12 volt non-modified led bulb are still not conclusive.
Meaning, it needs more testing to see if it is of benefit or not, though for me, it was not looking so good.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on July 12, 2017, 02:32:34 AM
Hi SkyWatcher 123,

Do you think the boost converter with split positive light and charge method might work with ten 7 watt 12 volt unmodified bulbs in parallel?   I have many 12 volt 1.2 amp hour batteries.  I would only power all the parallel bulbs with 12.31 volts to be on the safe side. Why I am keeping with the unmodified bulbs is because if this pans out no one will modify a light bulb later.  They would rather just be lazy and buy a stock bulb- plug it in for results.  This goes for 120 volt AC led bubs also.     
http://www.ebay.com/itm/New-Digital-Control-DC-DC-Boost-Module-Step-up-Converter-Power-Supply-CC-CV-Tool-/222236381346?epid=622229090&hash=item33be5210a2:g:Gw0AAOSw-kdXx9Pa

http://www.ebay.com/itm/bayite-DC-6-5-100V-0-20A-LCD-Display-Digital-Ammeter-Voltmeter-Multimeter-/381679975077?epid=1742951989&hash=item58dde63aa5:g:cecAAOSwq~tZVX6w
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on July 13, 2017, 04:29:49 AM
Hi all, Hi magnetman, thanks for the links.
Just thought i would share some interesting observations.
I decided to bring all 12 modified led bulbs up to almost full brightness with the boost converter.
Using an amp meter at input to boost converter, the voltage output was around 58 volts and this gives blazing light in the room.
That is using 22 watts and if they were powered by the ac grid, it would be 66 watts.
If i raise the voltage a little more, the brightness increase is barely noticeable, though the input more than doubles.
So, that is 1.83 watts per bulb at what i would consider at least 90% of full brightness per bulb and raising it further makes little difference anyway.
Seems a rather efficient way to light up a home, though remember, these are modified led bulbs, which helps the efficiency apparently.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on July 13, 2017, 07:49:02 AM
Hi all, Hi magnetman, thanks for the links.
Just thought i would share some interesting observations.
I decided to bring all 12 modified led bulbs up to almost full brightness with the boost converter.
Using an amp meter at input to boost converter, the voltage output was around 58 volts and this gives blazing light in the room.
That is using 22 watts and if they were powered by the ac grid, it would be 66 watts.
If i raise the voltage a little more, the brightness increase is barely noticeable, though the input more than doubles.
So, that is 1.83 watts per bulb at what i would consider at least 90% of full brightness per bulb and raising it further makes little difference anyway.
Seems a rather efficient way to light up a home, though remember, these are modified led bulbs, which helps the efficiency apparently.
peace love light

Hi SkyWatcher 123
When you modify the led bulbs do you discard the frosted plastic dome cover and just use the bulbs light plate?  Specifically what 12 bulbs were modified- Sold by and watt rating for this experiment?

Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on July 13, 2017, 06:17:06 PM
Hi magnetman, this is the closest bulb i can find on the website, though mine are the non-dimmable version.
https://www.meijer.com/product/home-improvement-auto/electrical/light-bulbs/led-bulbs/meijer-led-55w-a19-es-soft-white-40weq/t1/t1-873/t2/t2-10048/t3/t3-1123/t4/t4-2200/70882034106.uts (https://www.meijer.com/product/home-improvement-auto/electrical/light-bulbs/led-bulbs/meijer-led-55w-a19-es-soft-white-40weq/t1/t1-873/t2/t2-10048/t3/t3-1123/t4/t4-2200/70882034106.uts)

I don't know if these dimmable ones have the same led board as mine, though if you have a meijer store in your area, you can go and see if they have the non-dimmable ones.
Otherwise, maybe some other equivalent 40 watt led bulbs can be used, though they might have a higher led board forward voltage, though i think your new boost converter can go higher in voltage and that would work.
Yes, i removed the plastic dome on all the led bulbs for more light, just don't look at them or you will be blinded temporarily.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on July 17, 2017, 05:06:32 AM
Hi all, just want to share another observation.
I bought a couple 60 watt equivalent GE HD 10.5 watt led bulbs.
I placed those and a couple of 40 watt equivalent 6 watt ecosmart led bulbs into the can light assemblies.
That is using 33 watts input power from ac grid power, no modifications.
The light from those does not compare, maybe half the practical illumination.
Compared to the boost converter driven, 12 modified 5.5 watt led bulbs, that are only using 22 watts input, which light up the whole room, with blazing light.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: hoptoad on July 17, 2017, 12:27:57 PM
snip...
That is using 33 watts input power from ac grid power, no modifications.
The light from those does not compare, maybe half the practical illumination.
Compared to the boost converter driven, 12 modified 5.5 watt led bulbs, that are only using 22 watts input, which light up the whole room, with blazing light.
peace love light
Reminds me of a line from a 1980's song, I think : " My future's so bright, I gotta wear shades ".


Cheers  ;)
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on July 18, 2017, 02:31:34 AM
Hi all, just want to share another observation.
I bought a couple 60 watt equivalent GE HD 10.5 watt led bulbs.
I placed those and a couple of 40 watt equivalent 6 watt ecosmart led bulbs into the can light assemblies.
That is using 33 watts input power from ac grid power, no modifications.
The light from those does not compare, maybe half the practical illumination.
Compared to the boost converter driven, 12 modified 5.5 watt led bulbs, that are only using 22 watts input, which light up the whole room, with blazing light.
peace love light

Was the light of the 10.5 watt bulbs observed with the frosted plastic bulb dome covers removed? Your modified bulbs have those removed.    I can see much more light from my 7 watt 12 volt bulbs with the dome cover removed.
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: lancaIV on July 18, 2017, 02:02:29 PM
Probably  here is a misinterpretation about physical and technical diode use :
we can get physical many lumens(brightness) per Watts input but technical/commercial here is the conditioning :
 8) warranty about durability !  :P and for price comparing !

Cree reports that the LED efficacy was measured at 303 lumens per watt, at a correlated color temperature of 5150 K and 350 mA. Standard room temperature was used to achieve the results.

https://en.wikipedia.org/wiki/Haitz%27s_law (https://en.wikipedia.org/wiki/Haitz%27s_law)
Besides the forecast of exponential development of cost per lumen and amount of light per package
100 lumwn/Watt 2010
200 lumen/Watt  2020

( Our economy is financial costs and profits related not driven by R&D lab physical world records. )


many led lamps are officially given up to 100.000 hours  :) , in our household after +/- 1/2 year in use the lamps have to be changed  :o !

a professional (engineer,ex-Phillips led-production department)told me that it is not the led by itself but the resistance inside  the lamp. 

 
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: SkyWatcher123 on July 19, 2017, 04:24:42 AM
Hi magnetman, i can't make that experiment, because i don't want to ruin those bulbs.
Though i would imagine it's a little brighter and not as diffused.
Hi ianca, so are you saying the internal circuitry is not very reliable.
That is why mine are modified, more efficient and will last much longer, especially considering i'm not driving them to the max.
peace love light
Title: Re: Oscillator Powering 6 Modified Led bulbs
Post by: magnetman12003 on July 21, 2017, 07:11:05 PM
I have come to a conclusion that no matter what light source you measure it will have to be placed under a frosted enclosure and the measurements taken off the top of the enclosure.  To many different  size led light bulbs not to mention the kelvin temperature they operate at. A large white plastic frosted hemisphere dome type of enclosure would be ideal as a standard.  Any ideas??