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The load current is constant, you are correct. The thing is that the source is not supplying any additional current to charge Coss, some of the load current goes to Coss in order to charge it and the rest through the channel, hence the actual turn-off losses are reduced. That's why when you turn...
Hi,
this is a really interesting topic. I've always had doubts until recently while testing a high frequency converter for generation of short (1 us) high voltage pulses. The converter switches at really low currents (1-2 A) and has some conduction losses for the duration of the high voltage...
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