Metal oxide semiconductor field effect transistor (MOSFET) is often used as the switching devices in medium and small power single-phase full-bridge inverters. To realize energy-saving operation of the inverters at high switching frequency

a single-phase full-bridge energy-saving resonant pole inverter topology is proposed. The same auxiliary resonant circuit is connected with parallel on the bridge arm. Before the main switch on the bridge arm is switched on

the voltage across its parallel resonant capacitor becomes zero periodically

which makes the main switch achieve zero-voltage soft-switching and eliminates the capacitive switching loss of MOSFET. It is conducive to the energy-saving operation of the inverter. In this paper

the working mode of the circuit is analyzed. The experimental results show that the main switching devices achieve zero-voltage soft-switching. Therefore

this topology has reference value for the research and development of high-performance medium and small power single-phase full-bridge inverters.