In order to improve the performance of the single-phase AC-DC-AC converter

a single-phase resonant DC link zero-voltage switching AC-DC-AC power converter topology is proposed. It is composed of a totem-pole type single phase rectifier

an auxiliary resonant circuit in the DC link and a single-phase full bridge inverter. The output voltage of the rectifier and the input voltage of the inverter can be changed to zero respectively via the same auxiliary circuit and the switching devices on the arm of the rectifier and inverter can achieve zero-voltage switching respectively. This paper analyzes the working process of the circuit. The experimental results on the 1.2kW prototype show that the switching devices achieved soft switching. The topological structure has reference significance for the development of energy-saving single-phase AC-DC-AC converters.