Ian McLean wrote:
> I have brought this topic up before and generating a lot of criticism
> and alternatives for driving TEC's.  Some will say that PWM is also
> not the best way to control them.

It isn't, unless the individual pulses are filtered so that the Peltier
device sees a constant current.  This is again due to their inefficiency at
high drive current.  This means you will get more cooling at a constant half
current than alternating between off and full on half the time.


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