A New Commutation Circuit for PWM Cuk AC-AC Converter

This paper proposes a snubber circuit for a PWM AC-AC Cuk converter. The proposed snubber applies a modified Undeland snubber as a commutation aid. The snubber circuit has some good features such as reduction of voltage/current stress of the main switches, improved efficiency. The experiment results show the adaptability and feasibility of the proposed snubber circuit.