Thermoelectric cooler

[marianodanilo]

hello I want to build a charger powered by a thermoelectric cooler (Peltier cooler) but the output voltage from the TEC is at minimum of 0.3 volts up to 1.3 V..
can you please suggest of how can I amplify it to give an output of 5V..thanks

 

[FvM]

You have already answered the question yourself by referring to LTC3108 in another thread, I think. Generally speaking, a self oscillating transformer voltage converter based on depletion mode transistors is the way to go. This can be possibly a simple one transistor circuit, but efficiency won't be as good as with LTC3108.

 

[marianodanilo]

.if the input voltage of LTC3108 is fluctuating,,so its output voltage of it will also fluctuates at some value?

 

[FvM]

The device provides voltage regulation.