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Author Topic: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....  (Read 187982 times)

sirmikey1

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Hi All,
  Found this on youtube, a resonate LCR Joule Thief circuit using one coil and an NPN and PNP transistor.  I's showing much less energy draw of the normal jewel theif.

Here's the video, and I've attached a schematic to this post.
http://www.youtube.com/watch?v=EzlMHlnK2DM

SM


Tink

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #1 on: January 01, 2010, 05:31:17 PM »
I very much doubt a white led will run with just one loop of wire.
I think the red led lights up because it is a direct connection to the 1.5 Volt source (red leds do light up at about 1.5 Volts you see!).

jadaro2600

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #2 on: January 01, 2010, 05:55:39 PM »
Most red led's the size he's using will run without the transistors at all.

On top of that, he seems to have things under the piece of paper, obscured from view.

mscoffman

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #3 on: January 01, 2010, 06:26:09 PM »

  Found this on youtube, a resonate LCR Joule Thief circuit using one coil and an NPN and PNP transistor.  I's showing much less energy draw of the normal jewel theif.


The Oscillator circuit is called a Complementary Transistor Multivibrator from digial fame.

:MarkSCoffman

jadaro2600

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #4 on: January 01, 2010, 06:57:00 PM »
I just tested the circuit, it does work, I was able to light three led in parallel with it. ..I also used a diode and capacitor to measure voltage gain, the readout was 3.5V, it's consuming 8ma.

The led's didn't get very bright, but it does work - however, I had to drop the resistance down to 1k on the main resistor, and since I wasn't able to find 100pf cap, i had to use a 400pf, ..also, brightness seems to fluctuate with capacitance. ..more not always better.

Still not too sure about that one loop thing myself.

I think he's fooled himself with the red led.  I believe it will light without this circuit on a 1.5v source.

crowclaw

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #5 on: January 01, 2010, 07:11:46 PM »
I use a similar circuit and it's very useful either as a self oscillating boost circuit or driven by an external oscillator. I made a simple white led bedside lamp run from a single niMH 1.5v rechargeable cell some time back. The circuit is quite efficient and 10MA-20MA is typical, also ready available inductors can be used. I have attached a copy my design, as can be seen it's very similar. Merv.

gadgetmall

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #6 on: January 01, 2010, 07:43:05 PM »
I very much doubt a white led will run with just one loop of wire.
I think the red led lights up because it is a direct connection to the 1.5 Volt source (red leds do light up at about 1.5 Volts you see!).
This is a typical boost circuit . The one wire is actually an inductor . I have build several . The inductor looks like a resistor . most of them are light blue with color stripes indication the micro henerys . I posted a schematic way back in the Jt thread somewhere and made a nice Christmas led with a diffuser glob laster year . . Mine pulled about 8 mas still to high and higher than My latest normal jt using 2n2222a . It pulls 2 ma full power on a 1 volt battery lighting up a super bright 10mm white led PLUS charges a Super Cap . I found out by trial and error that component placement make a world of difference on both input and output  of the transistor . I made two Jts both with the same parts but put them in different locations and got  drastically different inputs and out puts . here is the video of My 2 ma  i gave to Groundloop  . I tried to make a duplicate but put the parts on different places ,same hook up and same parts but could not make the replicate draw less than 10 ma  :( so if you duplicate  i would recommend you put them in exactly the order i have in the z Video ! http://www.youtube.com/watch?v=3q2VnPpvKdI
Gadget

tinu

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #7 on: January 01, 2010, 08:28:04 PM »
...
http://www.youtube.com/watch?v=3q2VnPpvKdI


What’s going on is very simple imho.
You measure either 20-21 mA (or so) OR the voltage on open circuit, which is not relevant.
You need to measure both current AND voltage on the same load. In doing so you’ll see the voltage on the load is very small, close to zero.
So, input is 3mA x 1.2V = 3.6mW
Output is 21mA x ???V = ???mW
Output power is less than input power according to the knowledge we have up to date but even if we consider jt circuit as 100% efficiency, voltage on load shall be 3.6mW/21mA = 17mV. If the efficiency of jt is 80%, you should have 13-14mV on the load. Both values are consistent with a discharged cap.

I anticipate your further question: what if the cap was initially charged to a higher voltage (ie 1V or so)? Well, in that case the output current would have been much smaller. In fact, if you carefully analyze your movie, hopefully you can notice the output current is decreasing as you make the movie and that decrease is exactly because the voltage on the cap is slightly rising.

If you agree with the above (eventually after experimentally checking the explanation I gave), please update also the youtube description, as the reasoning about free energy is not applicable any longer.

Best regards,
Tinu

gadgetmall

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #8 on: January 01, 2010, 10:23:23 PM »
What’s going on is very simple imho.
You measure either 20-21 mA (or so) OR the voltage on open circuit, which is not relevant.
You need to measure both current AND voltage on the same load. In doing so you’ll see the voltage on the load is very small, close to zero.
So, input is 3mA x 1.2V = 3.6mW
Output is 21mA x ???V = ???mW
Output power is less than input power according to the knowledge we have up to date but even if we consider jt circuit as 100% efficiency, voltage on load shall be 3.6mW/21mA = 17mV. If the efficiency of jt is 80%, you should have 13-14mV on the load. Both values are consistent with a discharged cap.

I anticipate your further question: what if the cap was initially charged to a higher voltage (ie 1V or so)? Well, in that case the output current would have been much smaller. In fact, if you carefully analyze your movie, hopefully you can notice the output current is decreasing as you make the movie and that decrease is exactly because the voltage on the cap is slightly rising.

If you agree with the above (eventually after experimentally checking the explanation I gave), please update also the youtube description, as the reasoning about free energy is not applicable any longer.

Best regards,
Tinu
Hello .Actually you cannot read "OPEN Circuits"  with an ampmeter . In my case the ampmeter is a dead short with 5.6 Ohms load across the transistor CE junction . The question is not IF the measurements are wrong . That was discussed as an ac ripple may still exist even thought i rectified the Ce junction with a germanium diode and adding to the voltage . The Proper Measurement will be done by the owner ,Groundloop of this rare JT . As stated in the comments the measurment for out put is a little off but not by much . Also you cannot read voltage in a dead short circuit so yea it will be Close to zero . The proper way to measute CURRENT  OUTPUT is to place a 1 or 100 ohm resistor ACROSS your meter and then it will be very close to accuratly reading the current . I cannot however understand that as an ampmeter it already has a SHUNT LOAD across the termanials of 5.6 ohms so this reading could be correct even with a 1 ohm resistor . And also i measured the input current which is 100% correct with or without a dead Short ampmeter . Simple put the Voltage measurements are there for the INPUT . the out don't matter as i was taking current measurements from out and showed volts in and current in .

Gadget
« Last Edit: January 01, 2010, 10:48:13 PM by gadgetmall »

tinu

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #9 on: January 02, 2010, 02:56:42 AM »
Usually common ammeters have higher shunt but if you’re sure yours is 5.6Ohm that’s fine with me. Yet, 5.6Ohm as compared to the impedance of a supercap is like open circuit, no matter how strange it may sound to you or to anyone else. Please experimentally check it on another jt you may have left and if you have reasons to correct me, post them inhere.

Ripples is another story that can contradict the claim contained in the title of the movie “Joule thief put more amps and volts out than in”. (And that’s a powerful claim; I have to disagree with it until it is SURE. Until you’re sure, letting it written the way it is will cause harm to the OU world and will be rightfully attacked by people.) However, given the experiment itself as presented, the explanation you’ve ask for is the one in my above post and the error simply resides in the measurement technique.

sirmikey1

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #10 on: January 02, 2010, 04:24:28 AM »
.
.
EDIT:
The LEDs will not light with just the battery.  Not even faintly. 1.5v input and 3.6v output...

.
The reasoning about free energy is not applicable any longer.

Tinu,
   Mad rush, I agree that it's titled poorly.  Any suggestions?  Ran across this circuit yesterday as one Lidmotor had just favorited on youtube.  Just stuffed it into my mental database after duplication.  I tried all sorts of big fat LEDs. 

   I'm leaning towards Tesla's magnifying transmitter, and this seems to line up with resonating against precharged items in order to peak or magnify, to climb on top of the initial wave (bounce and build).   
Video: http://www.youtube.com/watch?v=geYfUHh6nD8

   Also related, Lidmotors youtube duplication of the Davro Radiant SEC 4kv trigger coil. He's now lighting small items wirelessly, and the larger items with wires to the oscillating aluminum plates.  I heard someone say that the 4kv trigger coil's frequency is appropriate for for SEC (radiant).  I'm ordering one of these coils tonight.
Video: http://www.youtube.com/watch?v=2Rzw4FRovnI

Error simply resides in the measurement technique.

Ahh, things are all moving at the speed of light here ;)  and what if he's tapped into it...

Quote Lindemann: Tesla said in patents that there are 2 different types of particles.  One is electron, other is aether. If you block electron via a super fast charge gap with over 1 million cycles and 100KV then cold electricity appear from the pure flux of aether. No electron can go that fast. So the thing is to purify the electron from the aether. This can be done only via a spark with smaller duration than 10mhz. So all your circuits are useless in this realm.

SM
« Last Edit: January 02, 2010, 05:30:33 AM by sirmikey1 »

xee2

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #11 on: January 02, 2010, 05:35:53 AM »
@ sirmikey1

I'm ordering one of these coils tonight.

Where are you ordering trigger coil from? Can you provide link to a data sheet? This seems like a very interesting item.

EDIT: OK I have figured out what these things are. They are just the transformers used to step up the pulse voltage for xenon flash tubes. I have found several sources.

« Last Edit: January 02, 2010, 09:24:59 AM by xee2 »

david7630274

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #12 on: January 02, 2010, 07:57:29 AM »
I very much doubt a white led will run with just one loop of wire.
I think the red led lights up because it is a direct connection to the 1.5 Volt source (red leds do light up at about 1.5 Volts you see!).
Tell me where to buy this miracle red LED that runs on 1.5V.

david7630274

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #13 on: January 02, 2010, 08:11:25 AM »
I just tested the circuit, it does work, I was able to light three led in parallel with it. ..I also used a diode and capacitor to measure voltage gain, the readout was 3.5V, it's consuming 8ma.

The led's didn't get very bright, but it does work - however, I had to drop the resistance down to 1k on the main resistor, and since I wasn't able to find 100pf cap, i had to use a 400pf, ..also, brightness seems to fluctuate with capacitance. ..more not always better.

Still not too sure about that one loop thing myself.

I think he's fooled himself with the red led.  I believe it will light without this circuit on a 1.5v source.
Try 1000 microH for the coil. It will light up the LED super bright. But you must absolutely positively use 100pFarad. Other values will not be as bright. BTW, I don't think I fooled myself with the red LED. If  you can find a miracle red LED that lights on 1.5V let me know.

sirmikey1

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #14 on: January 02, 2010, 11:52:54 AM »
Where are you ordering trigger coil from? Can you provide link to a data sheet? This seems like a very interesting item.

xee2,

  Mouser.com has a 4kv and a 6kv for just a  few bucks.  The goldmine-elec-products.com coil looks too small, tiny, and so I passed that one up.  I'm also wanting a big ferrite ring  :o  Any newbies may also be interested in this item, cheap breadboard kits with sacks of all common circuit parts:
http://stores.ebay.com/NightFire-Electronic-Kits__W0QQ_scZ1QQ_sidZ22293525QQ_sopZ3?_nkw=breadboard+kit&submit=Search

   David, thanks for joining in.  Just ignore the negs and stay focused.

Edit: my meter wont read induction.  Anyone know how to read the values by the markings?  Bigger is better...

1. MEDIUM BRIGHT 2371131900
2. MEDIUM BRIGHT 2371130600
3. VERY BRIGHT     2371131500
4. VERY BRIGHT     2371130400

Mikey   

     

« Last Edit: January 02, 2010, 01:23:43 PM by sirmikey1 »