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Auxiliary turn-on mechanisms for reducing conduction loss in body-diode of low side MOSFET of coupled-inductor DC-DC converter
Auxiliary turn-on mechanisms for reducing conduction loss in body-diode of low side MOSFET of coupled-inductor DC-DC converter
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机译:减少电感耦合DC-DC转换器低端MOSFET体二极管中传导损耗的辅助导通机制
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摘要
Conduction loss in the body-diode of a low side MOSFET of a power switching stage of one phase of a coupled-inductor, multi-phase DC-DC converter circuit, associated with current flow in the output inductor of that one phase that is induced by current flow in a mutually coupled output inductor of another phase, during normal switching of that other stage, is effectively prevented by applying auxiliary MOSFET turn-on signals, that coincide with the duration of the induced current, to that low side MOSFET, so that the induced current will flow through the turned-on low side MOSFET itself, thereby by-passing its body-diode.
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