Power Factor Correction in Cycle Control with Divided Output Capacitors

Abstract

A power factor correction scheme using a cycle-control is proposed without switching devices, where output voltage can be much reduced. A certain application requires such control like significantly lowering the output voltage. In the proposed method, the output capacitor is divided into two parts, in which the input current waveform becomes balanced one. Hence, the harmonic characteristics can be much improved, where the lower order harmonics, such as the fifth and seventh orders are sufficiently reduced. The results are confirmed by the theoretical and experimental implementations.