Quote:
Originally Posted by Ether
Are you talking about the 2 microsecond shoot-through delay? During that time, the intrinsic diode of the non-conducting high-side FET pair would complete the current loop. The inductive current doesn't flow through the sense resistor, because there is no path to ground.
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Wouldn't the bias current of the INA193 reference ground to some extent?
Though it's certainly not going to see anything more than 20uA.
No you're right...while it might impart noise on the measurement it wouldn't produce any appreciable current flow in that resistor so it wouldn't heat it.