Quote:
Originally Posted by harlequin2
First off, you can't use a fet as a load without some form of stabilisation - simply applying some voltage to the gate results in a completely unknown and quite unstable current flowing. "Calibration" as you suggested does not work, it is simply too unstable to be even thought about.
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Many "commercial" BMS cell modules are using FETs for dissipating.
They don't measure the dissipating current, but they are monitoring the temperature of the FET.
And they use PWM to keep the FET living
for example: