Joule Thief

[innovation_station]

i have found if you have a false charge .....  your batteries are not conditioned ...  and i bet they take time to do so i have done in vs out tests

no ou at this point i think it is because the barreties are NOT conditioned

but my batteries held current ....

cap motor will be done .... 

maybe you missed my video....  take a resistor from my big cap fill a small one with it and close the loop it will run with gain ....


ist!

[gadgetmall]

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Re: Jule Thief
« Reply #1395 on: Today at 12:41:25 AM »
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@timmy1729
      I posted this schematic several pages back but no paid attention to it so i thought id post it again . It requires you make your toroid with another output winding and it does feed back to the battery and it does prolong the life of a dead battery on this Joule thief . It works . Not ou but you can see it boost the voltage when you feed it back .EDIT ****My Friend Jesus just pointed out that the polarity is wrong on the input . Thank you Jesus ! I just used the first transistor symbol i saw and didn't think about polarity . also D3 may light of not . if not just reverse it . same for the other led . Sorry . I just build them and tracing a gob of hanging soldered leads gives me a bit of a head ache . I know it works cause i built it . putting it on paper is kind of new to me or at least i haven't done it in quite a few years (like 30) No wonder it was ignored 

* fusionchipJTfeedbacktosource.jpg (73.27 KB, 609x402 - viewed 58 times

[gadgetmall]

@Artic_Knight



Re: Jule Thief
« Reply #1439 on: Today at 03:51:20 PM »
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@gadgetmall

ok, if this is the case then im assuming you can adjust the output through a transformer and create a self running curcuit with a cap right?

in my opinion the only way to prove overunity or self running is to power via a cap
   

Nope . I tried it with JUST a CAP . It BLOWS the transistor from the piggyback coil immediately. the first spin on the rotor produces enuff voltage to light a neon without a cap  . i tried this many times  it need The battery to  absorb the extra voltage . i have not figured a way to run this completely off the cap Yet . I don't know how to make a transformer work on DC ?? My Current is a little over 20ma on the charge from the piggyback coil and i have tried resistors neons scrs etc... . NONE will keep the voltage down and the current up like the primary battery . It has a unique property of reducing voltage while absorbing the current to a point where i need to dump the charge . Its as close to ou that i have ever seen until it burns up the primary . thus that is why i have knife switches and load the secondary. One day i will automate the switch load and hopefully get some real big 12 volt battery's use the extra power on one of my inverters for real home power ..I have Big forklift batterys outside using large solar panels and a powersupply bedini to keep them topped off but that is being used for something different . any circuit suggesting for doing what i have done will be appreciated . but i have proved it to myself and i say if it works don't fix it ...

[Artic_Knight]

it depends on the nature of the DC. pulsed DC can operate a transformer however if the pulses are too long some of the energy will be lost IE only a changing magnetic field is harnessed in a transformer such as the joule thief transformer. the Joule thief uses pulsed DC to operate! solid DC strait from a battery obviously will not change the magnetic field and thus you will get nothing on the secondary coil. this is why the Transistor and transformer is needed in this curcuit and everything else is just a performance adjuster.

[Artic_Knight]

have you guys seen this link? it discusses that there is a break down voltage for the transistors. its a good read and possible a pitfall to some here on this forum.

http://cappels.org/dproj/simplest_LED_flasher/Simplest_LED_Flasher_Circuit.html


EDIT: apparently there is a 9v break down for some transistors. its rather interesting. they say you can adjust the frequency of the pulses by geting a lower capacity cap. this could be a easy way to generate your high frequencies if that is what your after. i beleive the ceramic caps are small, dont quote me just a guess. they infest old curcuit boards like a plague of roaches too