High-Efficiency Zero-Voltage Switching Single-Stage Switching Amplifier With Half-Bridge Active Clamping Circuit.

A zero-voltage switching (ZVS) single-stage switching amplifier (SSA) is proposed in this paper. The proposed SSA is composed of a bipolar phase shift modulation (BPSM) high-frequency link single-stage inverter and a half-bridge active clamp (HBAC) circuit. HBAC circuit is developed to clamp the voltages across cycloconverter switches and to recycle the energy in filter inductor and leakage induct...