Joule theif : try out !

[omdano]

So.. i measured the voltage straight out of my peltier .. it is about 0.1 volts .. It seems that i have underestimated my peltier .. so... is there any way i can boost it ?
(i can use 2 peltiers :p)
So.. a schematic will be Wonderful

[xee2]

So.. i measured the voltage straight out of my peltier .. it is about 0.1 volts .. It seems that i have underestimated my peltier .. so... is there any way i can boost it ?
(i can use 2 peltiers :p)
So.. a schematic will be Wonderful

Yes, you can put peltier units in series to get higher voltage. I have not tried the 25 mv circuit in video, but that may be your best option.

[infringer]

Have you tried fixing them to your window to see what you can get out of them top end that is if you live in a cold area...

That should be the biggest temp difference in your home.

Anyhow good luck with your project I would suggest getting like 10 of these and trying to run a light that way you should have a safe voltage then...

But I will tell you that they do make indoor solar cells that can absorb solar from your indoor lighting to charge a battery this is another option depending on which direction you are willing to go...

[omdano]

I have searched in the 25mv thread for a schematic but didnt find one , if anybody gets the luck help me and post it here :p

[omdano]

So... As in this circuit :http://www.youtube.com/watch?v=XQ7dua2mBzo

i can replace them with any germanium transistor or is there any specific types ?

Can i get the transistors that work with such a circuit so i can buy them ?
thanks very very very much