The influence of turn-off dead time on the reverse-recovery behaviour of synchronous rectifiers in automotive DC/DC-converters


The current commutation from the channel into the body diode of a MOSFET synchronous rectifier as well as the relation of the PWM turn-off dead time and its reverse-recovery behaviour were simulated and investigated experimentally. Both, reverse-recovery charge and current can be reduced significantly by shortening the dead time to few 10 ns. It leads to an… (More)

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