Joule Thief

[xee2]

Photo of the 15T-150T toroid used in the above circuit. Wire is #26 solid.

[altrez]

I think you need to explain a bit more. Magic what?

The lights get real bright and the multimeter takes a nap. I am not sure how I got it to happen. Also if I add a POT to the other coil I can make the led get even brighter but it has to be on a pick up coil to work, the POT that is?

So for example I am running the JT its powering the lamp. I add a second 100k pot to the current 1ohm pot. I adjust each in a sweep fashion.

Very perplexing.

-Altrez

[kooler]

xee2
the k1zm-slayer007 toroid circuit.. is the same one i use on 4 post inverters..
but some loads will lock the transistor down..
but it does output more voltage at the same input ma's (alot ma's )

robbie

[xee2]

The A get real bright and the multimeter takes a nap. I am not sure how I got it to happen. Also if I add a POT to the other coil I can make the led get even brighter but it has to be on a pick up coil to work, the POT that is?

So for example I am running the JT its powering the lamp. I add a second 100k pot to the current 1ohm pot. I adjust each in a sweep fashion.

Very perplexing.

-Altrez

I am not sure what is happening in your circuit. But, when a circuit goes into resonance, the voltage across a parallel resonator spikes. That may be what is happening.

[altrez]

@all

I think there is some odd what I call "reverse amplification" effect going on here. If you Jam a frequency on a pickup coil. That wave seems to resonate down into the bi-filer coil. I think that this could be timed to cause a major flux?-in the field thus if you added another receiver coil would yield excess energy.

Cant prove it yet but I wanted to at least share my theory of what I am seeing.

The battery that would normally drive then JT needs to be replaced with a cap and a blocking diode so you can see that there is "back-emf??" or something flowing back down in a reverse effect. If you remove the cap then you get a see-saw effect if you could add a timer you could what I call see-saw a charge back and forth and the circuit I "think" will run.

If nothing more this does to me at least prove that energy can 100% flow backwards in a JT if the correct load is placed on the pickup coil to at-least change the frequency.

-Altrez