Joule Ringer!

[gadgetmall]

I have been trying to understand what is going on in this circuit.

There is alot I do not understand about how it works

I do have a theory about the string of leaky diodes.

In my opinion the string of diodes is just raising the inductance so the impulses can do their thing.
If I am right a LED array of the right size might work well
A small high voltage capacitor might work well too. (probably less than  .1uF )

I have 3  AA camera circuits from E Goldmine somewhere around here .
When I find them I will give this circuit a try.


gary

Hey Gary i tried those and i could not get them to work off board . the transformer has only 4 pins and it used 6 other components including two inductors to make it oscillate. Best way on these i havent tried is to do it on board.
Albert

[lasersaber]

4 CFLs + 80 LEDs running on one 32000uF 20V Capacitor.  Runtime is just over 5 minutes on one capacitor.  I have now learned how to use multiple bifilar coils to my advantage in this circuit.  It may be possiple to use something other than bifilar coils but I have found them to work best for me so far.  I will post a video soon.

[shylo]

FANTASTIC............shylo

[gadgetmall]

No way . Could you teach us here how to wind a good coil Please !.We see you improving your circuit and we are struggling to get just one going:)

Albert

[TinselKoala]

@Mk1: Yep, use air core coils and try for higher voltages, that will help. Also even at these "low" frequencies, improving pulse rise and fall times will help efficiencies a lot. This means cleaning up layouts and paying attention to stray inductances, as well as minimizing the inductances of the operating coils.

@gadgetmall: one of the things about true bifilars that isn't always appreciated is that they have much higher self-capacitance than a normally wound coil with the same wire. You can do lots of interesting things with resonating air core bifilar coils.
Thanks for the battery charging link...good stuff....

@lasersaber: nice work !! now if you can just do it wirelessly....