Optimum Mode Operation and Implementation of Class E Resonant Inverter for Wireless Power Transfer Application

Abstract

This paper proposes the design of ZVS class E resonant inverter to be used in a wireless power transfer (WPT) system. Since the Class E inverter satisfies the zero voltage switching (ZVS) and zero derivative voltage switching (ZDS) condition, high conversion efficiency at high frequency can be achieved. All the components of the circuit are designed for optimum mode of operation and the inverter is made to operate at optimal switching conditions. The designed circuit is simulated in PSPICE environment and experimentally verified at a frequency of 333 kHz. The system is also tested for the WPT application and the transferred power is found out with different coupling coefficients.