A PUSH-PULL QUANTUM SERIES RESONANT RECTIFIER WITH PREDICTIVE CURRENT CONTROL

Abstract

A new push-pull type quantum series resonant rectifier for the power factor correction is proposed. The proposed single phase rectifier enables the zero-current switching operation of all power devices, allowing the circuit to operate at high switching frequencies and high power levels. A samples data dynamic model for this rectifier is developed and an analysis for the internal operational characteristics is explored. Based on this analysis, a predictive current control technique is investigated and its advantages over the other types of current control techniques are discussed. With the proposed control technique, the unity power factor and greatly reduced line current harmonics can be obtained.