Quote:
Originally Posted by adamj12b
This the just what happens with the voltage when you turn off during each cycle of the pwm. The voltage spikes and smash's into the closed gate of the mosfet. The diode is basically a pressure release that allows the voltage to flow back into the battery and not pound the mosfet to death.
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Sorry adam, but have to correct a couple things
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Quote:
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This the just what happens with the current when you turn off during each cycle of the pwm. The voltage spikes are created by the rapid change in current and inductance and smash into the closed gate of the mosfet. The diode is basically a pressure release that allows the currentto flow through the motor and not pound the mosfet to death.
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