Joule Thief

[Mk1]

@jesus

I understand how to check the voltage on the joule thief , i know all that , but now its time to go beyond that, I get more voltage and power from my pickup coil , the initial voltage increase (the one for the led)is not needed or a connection to ground that energy increase should be put back in battery , this is a transformer , there is no wire connecting the coils together on a transformer , but it still works.

I hope you get what i mean,i know that i said thank you the last time you showed how to read the voltage on the joule thief. But we are talking pickup coil .

Thanks.

[nievesoliveras]

@all

Following @jeanna's suggestion of having a toroid that everybody can build i made this graphic on paint with the information given by @mk1.

@mk1

Check this out and make any corrections you deem neccessary.

Jesus

[hansvonlieven]

G'day Jesus,

You have just done an experiment I suggested to Bill a couple of days ago in a PM.

I think I know what is happening here. When a Joule thief is connected to a battery the high energy pulses are fed partially back into the battery speeding up the chemical reaction, creating an apparent gain in output. Eventually the chemical reaction is exhausted and the process stops. That is why it does not work with a solar cell.

What do you think?

Hans von Lieven

[Mk1]

@ jesus

Here are the modifications , the 7 turn coil are for the joule thief , other coils are pickups 26 turns , and the both ends finish at the same place.
So you go from one jt coil(in red )to the other and back.

Make sure the the 7 turn coil are really close together ,make 3 turn and go back over it.

Thank you very much for the drawing.

Mark

Edit the 2 pickup coil in series light a 120vac neon .The one i used on the transformer thief.

Next step would be to ad 2 more pick up coils over the 2 existing one , In series making 120 volts per side or parallel to get 60v at higher amps.

[Pirate88179]

@ All:

Wow, I missed more great stuff here.  I have to go back and read!!!  I still can't keep up with everyone here.

I just ordered my 3 solar cells which, in series, will give me 1.5 vdc@ 1 amp.  I also ordered 5 more 265,000 MCD leds.
And, for $1.00, I ordered a bag of 10 of the small slide switches used on the Fuji boards and, for another $1.00, I got a bag of five 1" OD ferrite toroids also.

I am planning on giving this self run deal a go.  I will go back and look at the coils and diagrams posted for the high output JT.  Thanks again to all of you.

Bill