Commutation processes in multiresonant ZVS bridge converter

Abstract

The analysis of the multiresonant ZVS DC/DC bridge converter is presented. The control system of the converter is based on the method of frequency control at the constant time of transistor turn-off with a phase shift. The operation of the circuit is given and the operating range of the converter is defined where ZVS switching operation is assured. Control characteristics are given and the converter’s efficiency is defined. The circuit’s operation is analysed on the basis of results of the converter simulation tests using Simplorer programme.