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A new auxiliary circuit for single switch, zero-voltage-transition pulse width modulated (ZVT-PWM) converters is proposed in this paper. This circuit can assist the zero-voltage-switching (ZVS) operation of the main converter switch with lower auxiliary switch switching losses than many previously proposed ZVT-PWM converters, but with less circulating current than that found in ZVT-PWM converters...
A new family of active auxiliary circuits that allows the power switch in single switch, pulsewidth modulated (PWM) converters to operate with zero-voltage switching (ZVS) is proposed in this paper. The auxiliary switch can operate with a zero-current switching (ZCS) turn-on and turn-off without increasing the peak current stresses of the main switch. The feasibility of the new family of auxiliary...
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