Joule Thief

[innovation_station]

i cant help it... im just full of ideas ... 

i got thease db107 bridge rectifiers from a shake it flashlight ... im gonna build a nice little floro light 2 stage jt simple kinda thing ..

i used this unit a few months ago in a bunch of tests ... i think i have 2 of thease units .. 

so i will re build it on a all in 1 board useing a  nano jt to recharge the 3.6v 40 ma surface mount ni-mh cell 

then i will power a transistor to the jt i made 2 10 640 turn unit i was getting 620 v perfect sine from

ill mount it all on 1 board ... i should not need to hold the floro this time to lite it as im upping the input ... and it will still run from a aa or a aaa maybe even a button 

hows that for

shock n awe .. lol 

i think im addicted to building ...    

great work jesus.. !!!! awesome in fact! 

jesus maybe you could employ your feed back method to this unit and make it self chargeing ...  and perpetual ...

tune it up a bit and sell em  im sure it can be made really simple .. and cheep those bridges are only 30 cents buying 1 to 10 of them .. 

from the floro is where the nano jt toroide came from  ill throw it togather today .. im doing it just to explain this teck at the demo ..

ist! 

not cuz i want to sell them ...  im into generators and motors  pumps tpus all that kinda thing .. not  flash lights ..

  but if u put a aaa recharge able  battery you could recharge the source battery when the light is not running .. or if you took 2 feeds off the 3.6v you could power the second stage jt and recharge the driveing battery  at the same time .... 

i decided to use a bigger toroide for this unit insted of the nano ... jusy cuz it is easyer to wind and more bigger wires fit .. just so i dont have to work with spider web wire  lol

the kool part of this unit is everyone can build it does not need to be tuned or neat and tidy it will still work .. my son sky could build it and will when i teach him ...

also this shake it flash lights guts has a 2 push button i will take advantage of that too

first click turns on the jt primary chargeing device ... second click turns on second jt unit im hopeing i can wire it this way .. i will just use the simple jt first ... if it does not recharge fast enough i will go to the mk2 series and 2 bridges ...

yikes i changed my mind agin ... lol  i wound the simple jt in the IST FAST CRIDDER METHOD 5 TURN 3 LAP LOL  that way if the flyback aint enough ill just wind 2 picup coils on it then rectify them to the battery ...  this coill will ramp up you can hear it and see it on the scope being there is only 3 laps it will ramp slower .. but the wave will be way faster than my 20 mhz scope ...  guessing there based on past tests ... 

[innovation_station]

in 1 pulse this coil does 3 laps

hummmm

ist

when my gold mines get here i will do a SIMPLFLYED COIL .. 2 phases npn only  2 sypplyies ...

bounce coil tic then toc then tic agin .. back and forth .. the coil self chargeing as the supply flips so does the charge .. 

o the fun with thease little coils.. working on the rechargeing part .. so far no problem .. 1.2v to 1.2 v im up to 1.155v on the recharge battery .. just tapping the fly back .. wich is a poor way to do it ..  but it works ..

but so what if you throw a small solar there too to insure it is always recharged .. lol

[xee2]

Neon as spark gap video, R=20M and C=0.47uF. Video should play in Windows media player. This is a test to see if it works. Save attachment then play.

[jeanna]

Neon as spark gap video, R=20M and C=0.47uF. Video should play in Windows media player. This is a test to see if it works. Save attachment then play.

I got it.
Thanks and that is cool.
I would like to try your idea
R== ohms? =20Megaohm?

I was just wondering if my neon was going on too fast to see. (Did I mention that yesterday? or did you know my next question?)

thanks,

jeanna

[xee2]

@ jeanna

R== ohms? =20Megaohm?

Yes, it was 20 meg. I do not have scope so only way I can see if it is working is to slow it down until I can see it blink.