Joule Thief

[stprue]

Does it work well? output?

I had a different idea I still want to try but this does clear things up!

[jeanna]

@all

This is old stuff but there it goes .

The 4 jt coils are made of 12 turns of 22 gauge bell wire. There is also two secondaries of 24 turns up and down over each half.

If my memory is correct i got about 70 volts per secondaries .

Now this showed me that sending 2 kicks in one toroid is not that simple because the pulse from one can trigger other transistor out of time even if they are not connected to battery , i tested with one led on each side i can remove any one of the two transistor and the circuits keeps going both led are really bright.

So, perhaps, you made a more complicated diagram than you needed. It looks as if only one transistor is needed.

I am glad you did this, Mark. It helps us now that you had some experience from before.

I will try it with the ends connected as I mentioned above and a secondary as well. It will be wired like a BJT with secondary.

thank you,

jeanna

[Mk1]

@stprue

I have edited a bit my last post.

But there is no simple answer here , yes it works good , 70 volts per side is not that much today , but when a did it it was for me an achievement , i still have it around .

There is much more to be learned , i believe now there is a way to make it into a PMH like ED , that would mean you pulse the coil once the energy get stored in the coil and run in orbit until it get discharged , but now what would a secondary do on a charged toroid .

Example of PMH http://www.youtube.com/watch?v=9aOaFO6D0U4&feature=channel_page


Also in the one i have built the yellow and red work together and blue and green the other.

[Artic_Knight]

the battery charging from a joule thief should be explored more on a chemical side, i personally dont know enough about chemistry to do so does anyone else? 

while floating around the internet i found a "desulfator" which uses IC's namely the 555 timer and sells for 90 bux. this unit refurbishes a battery when it gets the white crystals on the lead electrodes. it cleans the battery by sending high voltage (35 volts for a 12v car battery) pulses into the battery cleaning the sulfides off the electrodes and allowing them to be properly consumed during the recharging of the battery. i myself have burried many a battery before finding this out but i have many batteries both lead acid and other to experiment with!

the joule thief can easily be used as a desulfator if the LED is removed and a (shotskies?) diode of 35v and the battery added in its place.

im personally exploring this application now i just need to find the right diode there is much to be read about this online however if one is interested.

[stprue]

@stprue

I have edited a bit my last post.

But there is no simple answer here , yes it works good , 70 volts per side is not that much today , but when a did it it was for me an achievement , i still have it around .

There is much more to be learned , i believe now there is a way to make it into a PMH like ED , that would mean you pulse the coil once the energy get stored in the coil and run in orbit until it get discharged , but now what would a secondary do on a charged toroid .

Example of PMH http://www.youtube.com/watch?v=9aOaFO6D0U4&feature=channel_page


Also in the one i have built the yellow and red work together and blue and green the other.

Thank you Mark for the excellent infos and video like.  I wasn't thinking it could sore energy like that...very interesting.  Now what would happen if you continue to pulse it?  Would it increase in rotational speed and energy.  It kinda sounds like some weird self inductor or something...

Time to build!