Joule Thief

[innovation_station]

i added the caps ..

here a few pics

ist

[innovation_station]

well i plonked on a full wave bridge made of 1n914 diodes

and i get a constant 9.60vdc out of 1  coil  i have not done the others yet... or put it in the cap but once it is in the cap we can hook up a small cap on a mk2 unit ...  like 10uf 9v but i need better transistors for higher volts

mk1 will the ones from the ramma cfl drivers work ??   

then if we can do the next round just that much slower and bigger and higher in voltage ...  what will be ?

ist

now the darn thing is at 12vdc constant it is touchy i need more fine tune pots to max the unit out

the caps charge ...  they do take a few seconds tho but this is no concern to me as i will onlly take a little from them and once there full to 12 volts or  so we should get a good returning colapse from the next phase ..

[Mk1]

@ist

I am not sure i get the question.

Try to make the jt coils go around the ferrite post cw ,ccw ,cw ,ccw ,cw etc...
since the circuit and bemf are in opposite direction.
I believe it helps the kick cancellation caused by the multi core setup...

Also remember that there is energy lost at the ends of the ferrite rods , maybe putting them between soft iron plates .

Mark

[innovation_station]

@ist

I am not sure i get the question.

Try to make the jt coils go around the ferrite post cw ,ccw ,cw ,ccw ,cw etc...
since the circuit and bemf are in opposite direction.
I believe it helps the kick cancellation caused by the multi core setup...

Also remember that there is energy lost at the ends of the ferrite rods , maybe putting them between soft iron plates .

Mark

mark you have taken apart the ramma cfls right you know the transistors in there .. 

sxw 13001   i cant find any info on them i was wondering if i could use those ones with a higher voltage supply cap ... 

looking for cheep and handy transistors to use in place of 3055's cuz i got none left ...

ist!

i have now 4 bridges soldered on the ring and 4 outputs round 6 + v from the caps ... i will finish the bridges ..    and the ring

got it all done i have 6 caps holding bout 8 vdc from a aaa battery ...

hummmm

ill add a pic

they apear to be climbing to 12 vdc per cap ..  there bouts

[resonanceman]

UNLESS...unless...
I am finding that by putting a coil of almost any kind, the lights stay on in all the circuits that have the extra coil.
I am working out the details, but a coil hooked up between one wire and the leds, will keep those on

Jeanna

I think  what  you are doing here is   impedance matching
If you think about it   the  electrons will always take the easiest  way ........... 

I just  got  my 90 LED array and  a CFL to light at the same time.
The CFL was not very bright .......but it was lit .

I got the CFL to light by  shifting  all my flyback  coils to the  LED array  side . ....


I will see  if  I  can  get a picture ..... I did it with my newest  toy ....... A JT made  with  a flyback  transformer core . 

This  new  JT   is a MK2      2 windings on each leg  of the wire  going to the base .
4 windings each leg of the other wire .
To keep it simple  ..... I  wound  2 spools of green Radio Shack wire ( 75 ft #26 )
and  one spool  of  gold  Radio shack wire  ( 40 ft #22 )
I wound them all  together  in one  coil 
I thought that the  green wire would have  quite a bit higher  voltage ...but  it is  about the same as the  heavier wire .

gary