A New Single-Phase PFC Rectifier (TOKUSADA Rectifier) with Wide Output Voltage Control Range and High Efficiency

摘要

This paper presents a new single-phase PFC rectifier that consists of a diode-bridge and a following new dual-switch dc-dc converter. Since the single-switch boost and buck dc-dc converters are Integrated and connected In parallel-like In the new dual-switch dc-dc converter, It achieves a wide and continuous output voltage control range In buck-region to boost-region with high efficiency. Further, a fine control scheme Is developed and applied to the new converter to obtain a precise PFC operation. In this paper, validity of the theory Is confirmed through simulation study.