Analysis, design and evaluation of a zero‐voltage‐switching non‐resonant converter for IPT applications

Abstract

This study presents the analysis, design and evaluation of a non-resonant converter for inductive power transfer (IPT) applications that provides zero-voltage-switching operation. The thesis of this work is that in many low-cost applications, compensation circuits used to provide resonant operation in IPT systems can be avoided, greatly simplifying the circuit and providing suitable operation and good efficiency. For this, available tools are a correct design of the converter in terms of switching frequency and output rectifier stage in order to achieve the required input-output characteristics. In order to achieve these goals, a thorough analysis of the non-resonant IPT conversion system is carried out in this study, providing the required tools for a proper study and design of the system. Experimental results from a commercial IPT transmitter/receiver arrangement are provided in order to verify the theoretical study.