Author Topic: Joule Thief (Read 6348414 times)

Pirate88179 · « **Reply #15330 on:** December 20, 2011, 05:02:59 AM »

Here is something I found interesting. A new type of rechargeable AA battery rated at 1.6 volts with a 1.8 volt terminal voltage after re-charge. One of the comments on this said that the discharge curve is much flatter than with the 1.2 volt bats. This extra voltage should make a lot of our little circuits light some lights a little brighter. I plan on testing these in my 1 watt Cree led flashlight that operates on two AA bats. (It is un modified)

http://www.amazon.com/PowerGenix-ZR-PGX1HRAA-4B-Charger-Rechargeable-Batteries/dp/B0029NZVZ0/ref=pd_sim_e_3

Bill

xee2 · « **Reply #15331 on:** December 21, 2011, 03:30:18 PM »

This is something for Christmas, a Joule thief that will light LED Christmas tree lights straight out of box (unmodified) using 1.5 volt AA battery.

video >>> http://www.youtube.com/user/xee2vids#p/u/0/LhyAcQzaleU

It uses a transformer and the base inductor suggested by Jonny Davro. This same circuit will light xenon tubes and fluorescent tubes as well as 120 VAC LED bulbs from a 1.5 volt AA battery also.

rxpc · « **Reply #15332 on:** January 08, 2012, 12:16:55 AM »

Hello everyone,

this is one amazing site! You guys are doing some great things here. I was wondering if anyone was using smd5050 led lights with the fuji AA mod? I had purchased some of these leds a while ago to use for under cabinet lighting in the kitchen. I thought maybe the fuji mod would be great for something like that.

thanks
Kevin

NickZ · « **Reply #15333 on:** January 10, 2012, 03:19:28 AM »

@ Pirate and All:
I had mentioned that by the time we figure out how to make the best Joule Thief, we'll probably be able to buy one cheaper than we can make it.

For $10 you can buy a Joule Thief Kit, including shipping. I don't know if this Joule Thief circuit is now available "ready made", or not, but if not, it soon will be, at least from China.
You can already buy solar garden lights (Jtc) for a $1, at the Dollar Stores, in some places.

Joule Thief Boost Circuit ($10 kits free delivery)

Hopefully this year, 2012, will be the best year yet, for us all.

NickZ

rxpc · « **Reply #15334 on:** February 05, 2012, 09:29:00 PM »

I finally found some toroids locally at a science surplus store. They're 1inch, not painted, grey in color. I made an attempt at a MK1 style toroid, 26 turns at 180 and 2 jt windings at 180. I only have a dmm, but priliminary testing shows 58volts ac, 35volts rectified on each pickup coil. I added a another secondary on one side, that also showed about 58volts ac, 33volts rectified. I put the two coils on one side in series and got 70volts ac, 50volts rectified. I guess I was expecting the rectified voltage to be about the same as the ac voltage, but again, I only have a dmm to test with.

crowclaw · « **Reply #15335 on:** February 06, 2012, 08:38:26 PM »

Quote from: rxpc on February 05, 2012, 09:29:00 PM

I finally found some toroids locally at a science surplus store. They're 1inch, not painted, grey in color. I made an attempt at a MK1 style toroid, 26 turns at 180 and 2 jt windings at 180. I only have a dmm, but priliminary testing shows 58volts ac, 35volts rectified on each pickup coil. I added a another secondary on one side, that also showed about 58volts ac, 33volts rectified. I put the two coils on one side in series and got 70volts ac, 50volts rectified. I guess I was expecting the rectified voltage to be about the same as the ac voltage, but again, I only have a dmm to test with.

Well done, you can no look forward to further experimental progress. There's a wealth of information and guidance within this mamoth thread! Your results depend on many factors regarding circuit design...component choice and values. If you are new to electronics take some time to investigate how AC to DC rectification works, 'GOOGLE' rectifiers. Digital meters however don't normaly work to well with spikey pulse waveforms and infact can be destroyed!!! Lastly if you intend to take a deeper interest in electronic circuits of this nature you will find an oscilloscope a worthwhile investment.

woopy · « **Reply #15336 on:** February 25, 2012, 11:06:13 PM »

Hi all

Have some of you already experimented this winding as per Sergdo ?? and have results with this design ??

i made a replication and it seems very interesting !

thank's

good luck at all

laurent

http://youtu.be/ZGSz_a3tTrk

gnino · « **Reply #15337 on:** March 16, 2012, 01:02:02 PM »

multifilar coil joule thief
http://www.youtube.com/watch?v=oejW6bEnCZc&feature=youtu.be

Mk1 · « **Reply #15338 on:** March 17, 2012, 01:39:30 AM »

@all

Hi everyone , i made my video about RESONANCE and the explanation about how important in getting really efficent circuits and free energy device .

Its been a long time coming because i could not find a camera capable to show the strings moving .

http://www.overunity.com/12155/resonance-101-test-what-tesla-test-it/

Mark

wings · « **Reply #15339 on:** March 17, 2012, 08:27:23 AM »

Quote from: gnino on March 16, 2012, 01:02:02 PM

multifilar coil joule thief
http://www.youtube.com/watch?v=oejW6bEnCZc&feature=youtu.be

bravo Gnino
puoi postare anche lo schema e soprattutto una foto del solenoide.
l'avvolgimento multiplo Ã© sul solenoide o sul piccolo toroide?

gnino · « **Reply #15340 on:** March 17, 2012, 09:46:28 AM »

sul solenoide 7 fili in serie , (6 fili da positivo a collettore 1 filo da positivo alla base)

funny · « **Reply #15341 on:** May 05, 2012, 03:17:21 PM »

My version of Joule Thief circ...
Many ideas put in one.
Trying to increase battery time. with AA*1 and AA*2

Ganzha · « **Reply #15342 on:** May 10, 2012, 02:07:36 AM »

Quote from: funny on May 05, 2012, 03:17:21 PM

My version of Joule Thief circ...
Many ideas put in one.
Trying to increase battery time. with AA*1 and AA*2

That is very interesting schematic!

Please specify nuber of turns and AWG of coil is it bifiliar?
Could you please specigy what pins of NE555 is connected? (there are pins)

It is very close to Bedini Charger and Romanoff CE

crowclaw · « **Reply #15343 on:** May 10, 2012, 08:42:16 PM »

Quote from: Ganzha on May 10, 2012, 02:07:36 AM

That is very interesting schematic!

Please specify nuber of turns and AWG of coil is it bifiliar?
Could you please specigy what pins of NE555 is connected? (there are pins)

It is very close to Bedini Charger and Romanoff CE

Yes good point... Seems to be a lot of missing information here! In what mode is the 555 working in and how. You also state two 'AA' batteries, I can only see one in your drawing. A good circuit description and component values would not go amiss for those wishing to replicate your circuit. Information posted for others to share is appreciated of course but many keen to experiment are novices. kind Regards

funny · « **Reply #15344 on:** May 10, 2012, 10:16:49 PM »

Sorry but i did this on purpose.
I'm trying diffrent components, so I did not want to post component's values.
Standard 555 astable circuit so i can adjust the on off freq.

Yes it is bifiliar windings.

Video of the breadbord. http://www.youtube.com/watch?v=TgyFZQFeznA

mbk.

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Author Topic: Joule Thief (Read 6348414 times)

Pirate88179

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xee2

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rxpc

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NickZ

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rxpc

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crowclaw

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woopy

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gnino

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Mk1

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wings

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gnino

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funny

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Ganzha

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crowclaw

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funny

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