CPC H03K 17/0822 (2013.01) [H02H 1/0007 (2013.01); H03K 5/24 (2013.01)] | 14 Claims |
1. A method of driving a power switch comprising:
providing a drive signal to a control input of the power switch;
coupling a sense terminal to a main terminal of the power switch;
mirroring a current input into the sense terminal during turn-off by using a current mirror;
determining a highest voltage of the main terminal during turn-off by comparing a current signal from the current mirror to a first current threshold; and
determining a highest voltage of the main terminal during turn-on by comparing a signal from the sense terminal to a turn-on threshold.
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