[time-nuts] SMPS or conventional?

[Poul-Henning Kamp]

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> TEC’s are indeed prone to wear out. That said, so is a compressor …..

The mechanism is almost entirely mechanical and running a TEC at a
stable current almost 100% mitigates it.

The surefire way to force the wearout is to reverse the current
direction a lot.

Whatever you use to control the TEC, needs to understand that there
is a 1:3 efficiency difference between the two directions, just
slapping a PI(D) on a TEC is guaranteed to kill it.

-- 
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