Joule Thief

[Pirate88179]

OK, stupid question time.  Does anyone know if you can hook up 2 joule thief circuits in either/or series or parallel?  Would the transistors have to be in "sync" for this to work?  Or, would this allow an even greater amount of output with even less input?  Has this been tried?  Yes, you can already tell that I am going to try it unless someone tells me that they did and everything blows up.  If it is a good enough explosion, I might try it anyway.  These things are so cheap to make, even I can afford to lose one or two of them.

Thanks in advance for not laughing at my questions.  And for those of you that did laugh?  It's OK, I probably deserve it.

Bill

[WilbyInebriated]

OK, stupid question time.  Does anyone know if you can hook up 2 joule thief circuits in either/or series or parallel?  Would the transistors have to be in "sync" for this to work?  Or, would this allow an even greater amount of output with even less input?  Has this been tried?  Yes, you can already tell that I am going to try it unless someone tells me that they did and everything blows up.  If it is a good enough explosion, I might try it anyway.  These things are so cheap to make, even I can afford to lose one or two of them.

Thanks in advance for not laughing at my questions.  And for those of you that did laugh?  It's OK, I probably deserve it.

Bill

i laughed, but only because of the highlighted statement, damn near spit out my soda.
i have never tried hooking 2 in series nor parallel, sorry. if it is a good explosion, let us know so we can have some fun too   

[Pirate88179]

@ Wilby:

I will let you know what happens.  Thanks. (grin)

Bill

[Koen1]

LOL

yeah, do let us know what you find when you hook two together...

To be honest, I haven't seen a clear scope shot of what exactly
happens in the Joule thief, and I think such a shot might help...

Of course it depends on how you hook them together... You could
try to use the output of one as the input for the second...
You could try hooking both of them to a capacitor (with diodes)
on the ouput side (in parallel) and see what the cap shows...
And you could even try to put several of the ring cores next
to eachother, around a copper rod or thick wire, and see if the
wire shows oscillations when you hook a meter to it.
Seems to me that, if all Joule thiefs work in phase, the ring
cores should also alternate their circular B fields in phase,
and any A field induction in the rod/wire would also seem to
be in phase, which might just give something interesting.
Or totally not.
Just tossing some wild ideas up into the air here.

[WilbyInebriated]

LOL

yeah, do let us know what you find when you hook two together...

To be honest, I haven't seen a clear scope shot of what exactly
happens in the Joule thief, and I think such a shot might help...

Of course it depends on how you hook them together... You could
try to use the output of one as the input for the second...
You could try hooking both of them to a capacitor (with diodes)
on the ouput side (in parallel) and see what the cap shows...
And you could even try to put several of the ring cores next
to eachother, around a copper rod or thick wire, and see if the
wire shows oscillations when you hook a meter to it.
Seems to me that, if all Joule thiefs work in phase, the ring
cores should also alternate their circular B fields in phase,
and any A field induction in the rod/wire would also seem to
be in phase, which might just give something interesting.
Or totally not.
Just tossing some wild ideas up into the air here.

if you read the thread, links were provided that show scope shots...