Joule Thief

[resonanceman]

@ jeanna 

I assume that the two JT each have their own transistor. If that is the case, then the AC voltages from the secondaries can not be added in series or parallel effectively because they are not if phase since each transistor is oscillating at its own frequency. The best way to add them is to power both JT from the same transistor. Or, to rectify the voltages into capacitors and then put the capacitors in series or parallel. The DC voltages can be added.

I was thinking that if  you  wrapped  both  JTs on the same toroid   they  should  stay pretty much in sink.



Jim

I  am careful .......haven't been bittern  yet     


gary

[innovation_station]

here is a pic of the new boards i finished ..

watch battery works ...  for both boards but led is not full brightness ...

winding a new jt to play with .. 

ist!

[innovation_station]

well well 

so my new jt works like a charm im gonna add more 1 turn secondaries...  there is 11 now

i have 4 leds hooked up ...   the 1 turns secondaires must be polorized as my led only lites one way .... humm

any ways all 4 so far light i will put 1 led on the rest each...  then im gonna add 11 more 1 turns secondaries and see what the results are ..

ist

[resonanceman]

IST

didn't you  say  at one time that you can achieve OU by  driving a ciol with a PWM ?


If  we  made a T  connection   to the output  of  a JT   and  put a diode on each  end of the T couldn't  we feed  a half  cycle to 2 different coils?

[xee2]

@ resonanceman

I was thinking that if  you  wrapped  both  JTs on the same toroid   they  should  stay pretty much in sink.

I'm not sure if that will work or not. But it migh work. The best way to find out is to try it.