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UCC21520: UCC21520

Part Number: UCC21520

Hi, I want to drive the mosfets in asymmetric half bridge topology. This is an application for 3 phase switched reluctance motor. Since the high and low side mosfets are on and off at the same time, I'm confused about how to give ground to bootstrap capacitance. Is there any application note or reference design about this issue? Or any recommendations please. Thanks.