Hi All, So I have two large (25A @ 12v) fans that I am controlling via PWM and some MOSFETS. They are working but I am seeing 62v PTP with the scope at the Fets output. I have a schottky diode across the fan terminals at the fans, but am still getting the 62v spike briefly. Better way?

Clamping inductive kickback of PWM fans?

dlloyd April 6, 2014, 7:46am 5

Due to the size of your fans 25A @ 12V 300W?? ... I would use a snubber circuit.

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