ZVS H-bridge inverter using soft switching boost converter

In this paper, we proposed a two stage zero-voltage-switching (ZVS) H-Bride inverter using soft switching boost converter. The conventional H-Bridge inverter generates switching losses at turn on and off. Since that, the efficiency is reduced. The proposed inverter operates ZVS using an auxiliary switch and resonant circuit to improve the efficiency of inverter. DC-DC converter stage reduce not only switching loss but also capacity and size of passive device. DC-AC inverter stage supplies load with energy through the ZVS operation of 4 switches. The operating mode analysis is presented in detail. We present the inverter topology, principle of operation and simulation results obtained from the PSIM simulator.