A New Phase Shift PWM Parallel-input/series-output Modularized Dual Converter

새로운 위상전이 병렬입력/직렬출력 모듈화를 적용한 듀얼 컨버터

A new phase shift PWM parallel-input/series-output modularized dual converter is proposed in this paper. This converter is operated with a fixed duty ratio and its output voltage is regulated by phase shift between each module. Since the operating duty ratio of each module is fixed it is sufficient to implement a simple open loop drive circuitry for each module and the cost of total system can be much reduced. The operation of the converter is analyzed in this paper and verified by computer simulation.