There's an issue I always seem to come by when I start looking closely at gate drivers for MOSFETs. It's that you get claims that go both ways saying BJTs have higher current capability or MOSFETs that have higher current capability. it seems to me that if we are talking about heat limitations then MOSFETs win. But it might not be a heat limitation and might be something like saturation or pinch-off.
It's the same with some claims that MOSFETs switch faster because they don't have to charge depletion capacitances or wait for minority and majority charge carriers to recombine as BJTs do. But then others say BJTs switch faster becaues there is no gate capacitance.
Can anyone provide clarification to why there are claims going both ways?
It's the same with some claims that MOSFETs switch faster because they don't have to charge depletion capacitances or wait for minority and majority charge carriers to recombine as BJTs do. But then others say BJTs switch faster becaues there is no gate capacitance.
Can anyone provide clarification to why there are claims going both ways?
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