Second Stage Joule Thief Circuits

[kooler]

kooler:

Nice circuit.  How bright would you saw the bulb is?  That is really something, nice job.

Bill

its about 30% brighter than sticking in the 120 outlet..
i been blowing those 1n4007 diodes so when i get some xtra time i will put a diode from a microwave the 12000v type and try it again..
i haven't really fine tuned it yet. i knew there was a few people wanting to see this circuit light a bulb so i just threw it together and video it..
you have to add some more collector windings to use 6volts with the jt.. but those big toroids really hiss loud with 5-6 volts.. that why i used the ccfl driver.. the battery in the video is a 6 volt type but only has 5.6 volts in it..

robbie

[jeanna]

Thank you robbie,

Do you happen to know the volts and frequency coming off the toroid?
I might have the parts I need, if the triacs I got are good enough. I have some high turn toroids and maybe I can just go ahead with this.
Thank you for this clear circuit,

jeanna

[sirmikey1]

  I was reading back in the JT thread that someone had got a stepper motor running with the JT.  I'll try to track that down, now. 
Exciting...
SM

[mscoffman]

hello all
this is the basic circuit lighting a bulb.. using the jt

@kooler

These circuits are amazing...Could you give the current in ma. coming
from a specific battery? Thanks you for posting the schematic.

:S:MarkSCoffman

[kooler]

Do you happen to know the volts and frequency coming off the toroid?

jeanna

the toroid i have will charge a cap alittle passed 1200v dc.. but once this circuit is running i can't get my scope near it.. it will start giving weird readings without hooking the probe up thats 2-4 feet away.. this is the same scope i have if anyone know how i can shield it
http://www.tequipment.net/Velleman_hps10se.html

@kooler

These circuits are amazing...Could you give the current in ma. coming
from a specific battery? Thanks you for posting the schematic.

:S:MarkSCoffman

this video shows the power of this circuit plus the ma's from a 1.5v d cell battery
but the 6 volt i was using had 5.6 volts left in it .. and it drawed 68 ma's with the ccfl driver
but i need to tweak the ccfl circuit some more.. i bet i can get the ma's way down..
plus it has one hv out pin and it has a perfect sinewave
http://www.youtube.com/watch?v=4pM3KhV8daw

robbie