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Author Topic: EER Joule Thief using an earth battery to start a joule thief.  (Read 158564 times)

jeanna

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #15 on: December 29, 2009, 09:24:46 PM »
Jeanna,

I have 22 turns on it.  I think I could tighten them up and have room for a secondary.  I did try powering this with just 11 turns and it worked fine.
That is good news.

The thing about tuning is you need to start somewhere wherever the oscillations begin and subtract as many turns as you can to keep the oscillations going.

The permeability of the toroid makes a very big difference.
 If you can pick choose high permeability. It seems you have what you need.

Normally I would have you start with a 10-20  turn secondary and have you measure what you get by looking at the number of leds IN SERIES you can light between the wires of the secondary.
This gives you a realtime value.
If you own a scope it is easy.
 Look for around 7 volts per each led for decent light. (spiky volts are different from mains volts)

The more turns on the secondary the more volts.
The frequency goes down as the volts go up, but I think the frequency is so high this can go down a lot before the lights go out from that cause.

So, my suggestions now are:
1- reduce the primary to 11 as you had before when it still worked.
2- make a 30 turn secondary and scrape the ends of the wires so you get a good connection to the leds.
3- Reduce and increase the number of turns on that primary to get the brightest lights from the secondary.
4- Later you can make the primary uneven to enhance this even more.
(When you do that, you look for the lowest number of turns connecting to the base of the transistor... like maybe even 2, then reduce the collector turns watching for change in brightness all the while.---and remember to write it all down ;) )

Your work is so encouraging
thank you,

jeanna

edit,
btw, I try to write these kind of instructions for a wide audience.
So, while you probably know about scraping the ends of mag wire, someone lurking out there might need that info.
j
« Last Edit: December 30, 2009, 04:23:01 AM by jeanna »

Foggy-Notion

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #16 on: December 30, 2009, 05:51:22 AM »
Is this the famed Jeanna of Youtube's "Jeanna light"

New member

Pirate88179

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #17 on: December 30, 2009, 08:39:10 AM »
Yes, this is the Jeanna of the Jeanna Light circuit.

Bill

lasersaber

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #18 on: December 31, 2009, 04:42:31 AM »
Jeanna,

Thanks for the instructions.  Should I use the same gauge wire for both the primary and the secondary?  I have magnet wire from radio shack in three sizes.

I do not really know much about "Jeanna's Light".  Would this be something that I might get to work with my earth battery?  I may want to try building one.

Happy new years

jeanna

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #19 on: December 31, 2009, 06:27:52 AM »
Jeanna,

Thanks for the instructions.  Should I use the same gauge wire for both the primary and the secondary?  I have magnet wire from radio shack in three sizes.

I do not really know much about "Jeanna's Light".  Would this be something that I might get to work with my earth battery?  I may want to try building one.

Happy new years
Thanks lasersaber,

You should use the same gauge for both parts of the primary, but the secondary can be anything.
As a secondary the thin red wire gives the best results, but it is very brittle and the varnish is very thin, and there is often a problem with "break-through" voltage (=sparks) which ruin the results although the sparks are too small to see.
I personally like the green 26 gauge wire for secondaries unless the toroid is too little. I think yours is big enough for the 26.
If I were you, I would use 24 gauge telephone wire for the centertapped  primary, and the green for the secondary.

As far as I know "jeanna's light" is a name lidmotor gave to the joule thief that runs off a secondary . It may also designate that it is powerful enough to light a cfl.  ;)
You would need to ask lidmotor.

You are already getting ready to make what jeanna considers a jeanna's light.  ;) and that is to make a useful lamp using only the secondary from a joule thief.
The name came out when I told him all the parts and how to put it together the way I have described here.

Enjoy and keep us posted.

jeanna

lasersaber

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #20 on: January 01, 2010, 05:49:29 AM »
Jeanna,

I got it working! I can light lots of LEDs right off my earth battery.  They are super bright too. Now I will have to go out and buy a lot more LEDs.  I will post pictures and a video later.  Thanks so much for your help.

Pirate88179

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #21 on: January 01, 2010, 07:18:47 AM »
Happy New Year to everyone here!!!!!!!!!!!!!

Bill

lasersaber

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #22 on: January 01, 2010, 07:08:28 PM »
Earth Battery Lights 61 LEDs!

http://www.youtube.com/watch?v=flbfxAHC7-c

jeanna

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #23 on: January 01, 2010, 09:20:47 PM »
Earth Battery Lights 61 LEDs!

http://www.youtube.com/watch?v=flbfxAHC7-c
Very nice
5 stars.
Just to be sure that I understand, I asked on the video if each of the bulbs and the single led are connected to the same place on the secondary.
That would give you 4 separate parallel circuits off the secondary.
I am sure this is what you are doing, but I want to point it out.

And, perhaps you did NOT notice this... the leds in the bulbs are wired in series.
Of course, this is so they don't blow up with the wall power, but it also shows how much you are getting because to light 20 (I counted 19 on mine-I guess I can't count  ;)) leds in series AT ALL is plenty.
I would say you are getting almost too much for the single.
It must be in an amazing balance of high voltage but low enough to not pop that one.

Please let us know the numbers of winds and are you using a resistor? etc.
thank you,

jeanna

Foggy-Notion

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #24 on: January 02, 2010, 12:09:16 AM »
Good golly, those aligator clips really dwarf that tupawear.
That's the second smallest food container I've ever seen.
What are you using to pusle your DC?  Or are you?
I mean that looks like a transformer.
You're gonna make me read huh?

jeanna

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #25 on: January 02, 2010, 12:43:29 AM »


What are you using to pusle your DC?  Or are you?
I mean that looks like a transformer.
You're gonna make me read huh?
Hi foggy-notion,

It is the joule thief that makes the pulses.
The toridal transformer has a center tapped primary which runs the normal joule thief light (JTL).
Adding a secondary and removing the normal JTL, allows him to use the spikes of voltage that happen as a result of the switching of the joule thief while keeping the basic dc joule thief circuit unchanged or unaffected.
If you read the first 100 pages of the joule thief thread, you will get all you need. (OR, whatever page it was, read to about the end of last january.)
The rest is repeats and progress to where we are now.

A hint at the pages thing.
Go to your profile and change the number of posts per page from the default to 50. There is less time spent loading the page this way.
It is never boring. There are a lot of great posts and ideas. It is very inspiring to read and nobody should avoid it.

Also, after reading it you might remind us of something we started but never continued last year!

thank you,

jeanna

Foggy-Notion

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #26 on: January 02, 2010, 03:22:20 AM »
Well thank you Jeanna,
and is this something I might be able to use to
pulse the HV low ampre jucie from my Wimshurst?

jeanna

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #27 on: January 02, 2010, 06:11:33 AM »
....
and is this something I might be able to use to
pulse the HV low ampre jucie from my Wimshurst?
;D ;D ;D
you run out of hands really fast with the wimhurst machine, but please try it and report.

jeanna

freepow

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #28 on: January 02, 2010, 10:19:40 AM »
Hello  LASERSABER, from freepow

How many volts and mA's are you getting from your EER (Earth battery) to light 61 LED's ???
And are all 61 LED's lit bright ???

Oh !  and very well done on your Joule thief powered by your EER !!!


lasersaber

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Re: EER Joule Thief using an earth battery to start a joule thief.
« Reply #29 on: January 02, 2010, 11:17:17 PM »
Jeanna,

Each of the bulbs and the single LED are connected to the same place on the secondary.  I did pop a few LEDs.  I am not using a resistor.  There are 64 or 65 winds on the secondary.  I counted it twice and got a different number each time.  I spent almost a whole day winding and unwinding that toroid.

Thanks so much for your help.  I would not have been able to make this without it.


Freepow,

I am at 1.650 and 40 milliamps on my earth battery.  I am about to start expanding my system some more and I am sure that I will be able to up my milliamps.  I will post my results.

The bulb LEDs are not what I would call bright but maybe that is because they are in series.  They are also a different kind of LED.
« Last Edit: January 03, 2010, 02:00:44 AM by lasersaber »