Joule Thief

[Pirate88179]

Jeanna:

Good point.

Here is a repost of a link to my video of running 400 leds from a "dead" AA battery:

http://www.youtube.com/watch?v=_RVvdCovYDY

I have to admit, I would hate to be a new person coming into this topic and having to read all of the previous posts.  I would do it, but it would take me a while to do so.

The above video was with the Fuji JT whereas Jeanna's was with her hand wound JT.  I made this video before I began winding the JT with secondaries in the MK1/Jeanna style.

Bill

[ltseung888]

I don't want to be a pest, but maybe some folks who have recently arrived have not noticed this circuit from last year.

http://www.overunity.com/index.php?topic=7617.msg203334#msg203334

That is a direct link to a post with pictures and above it and below it are the relevant details.
Basically there are 30 blazing bright A running from a single AAA NiMH taking a couple of mA to run the basic circuit and all the lights are coming from the sedcondary which does not add to the draw a bit.

Why doesn't someone move this circuit forward instead of reworking how to make pulses?

In addition:
If making a few leds light from a AAA is considered ou because leds cannot run at all on a single AAA, then what pray tell is running 30 leds from a single AAA?

Please excuse this outburst.


thank you,

jeanna

here is one pic of this:

Thank you, Jeanna.

My plan is to build a battery charger for the electric car batteries.  We know about the Bob Boyce Hex Controller Battery Charger.  The battery is automatically recharged from the circuit without connection to mains electricity.

I was hoping to do something similar with the Joule Thief.  Any suggestions?

[tysb3]

@ All

My latest goal is get efficiency 1 or >1, - not lighting a LEDs. (corrected for Jeanna)
I think , I'm close to gadgetmalls idea. He was trying to charge another battery, I'll try to selfcharge running battery.
I don't want to do traffic on this tread.
I want to move to gadgetmalls Second Stage Joule Thief Circuits. If nobody against? , somebody is inerested in my works ?
If not, - I can be  quiet.
Now this tread is still.
I wish gadgetmall comeback.e

[Cap-Z-ro]

jeanna quote:

" Whenever I remove the battery and the circuit is on 'drain' from the supercap, the 4 last lights first get brighter and then slowly dim to out. Ultimately, they outlast the rest. "


I believe there may be some value to that phenomenon which should be explored.

Regards...

[jeanna]

Thank you, Jeanna.

My plan is to build a battery charger for the electric car batteries.  We know about the Bob Boyce Hex Controller Battery Charger.  The battery is automatically recharged from the circuit without connection to mains electricity.

I was hoping to do something similar with the Joule Thief.  Any suggestions?

The biggest point is to use the joule thief as a pulse generator to generate pulses from only the secondary or pickup coil, and to never use the C-E junction for a led.

I do not have any more specific suggestions beyond building one or two jt circuits and using them for experiments.
It takes patience, because you will only have ghost voltage at first, but just keep cycling the recharge.

My battery took less and less ghost charge for 6 cycles before it turned around. Now, it gets almost as much charge as with amps from a normal charger.

John Bedini says it takes 20-30 cycles for a battery to take a good charge from spikes.
I agree.


So, in short...
Do it!!
And please report.

jeanna

edit add:
@tysb3
what does

not A leeds.

mean?
Can you say it a different way?