Joule Thief

[innovation_station]

@ jim nice cartoon ...    of course it is only rocks falling out my pockets ...  this guy got no change to put in them ... not yet anyhow... 

ill let you all in on my simple trick

to protect the fets .. and recover .. and redirrect aswell you can plunk a cap on the gap 

i have in the past used a diode comeing off the transistor only allowing the pulse to pass through 1 dirrection ... and i then put another diode in the same place in the revirse dirrection to redirrect the fly back ... and rectify it ...  and make it usefull for many things ...

i would do this to both fets npn and pnp   then drive the fets with a jt and a freq genny ... cuz you want the fets to run high on the in side .. so you have super fast off times .. and then you can use the fets to switch 12vdc ...

or what ever you want to switch ...

now when doing this DO REMEMBER  THE EDISSON GENERATORS FROM  WAYYYYY BACK IN THE DAY ... MANY LOST THERE LIVES .. CUZ THIS EFFECT

BE WIZE..    the kick operates on amprage too    so if i get 1000 x my in put in voltage ... if i increased my amprage on the input ...  will the amprage be amped aswell   hummmm

lol

ist 

ok nose back at the bench   

btw TESLAS KICK TRICK KICKS ASS .... DONT LET IT KICK YOURS!!   

[jeanna]

The circuit is the one that has a 2200uf capacitor in order to assist the pulse motor.


Jesus

Jesus,
Where on your circuit do you have the pulse motor?
Is it parallel to the 2200uFcap?


@Jim,
Another cool cartoon. Thanks. You are good at cartoons!


jeanna

[xee2]

@ jeanna

Here is another way to compute inductance. The following equation is from the manufacturers catalog which gives AL for the 3.38" cores as 11040. This equation says that to get 34 mH the number of turns should be 55. So the calculator says 80 turns and this equation says 55 turns. This equation says that 80 turns produces 70 mH of inductance. Twice as much as the calculator gave. I suspect that this is a more accurate calculation.

EDIT: for the 3.38" toroids only >>>  millihenries = 0.01104 (turns)^2

[nievesoliveras]

Great work jesus.

You might try hooking up the led again and disconnecting it over and over to see what effect it will have on the battery.

All the best.

Regards...

It has been very hard to post lately.Sometimes after I make a long written explanation, the machine put an error page the page freezes up and the explanation is lost.

Then I forget the details I wrote before.
Maybe this one also dont go to the forum, who knows.

Jesus

[nievesoliveras]

Jesus,
Where on your circuit do you have the pulse motor?
Is it parallel to the 2200uFcap?
...
jeanna

If posting is difficult, trying to modify an error is worst.

Yes, the pulse motor is parallel to the 2200uf cap.