Bridgeless SEPIC Power Factor Correction with coupled inductors

In this paper, a new bridgeless rectifier with coupled inductors is used for single phase Power Factor Correction (PFC) circuit. The proposed converter is needed as an AC-DC converter to improve the efficiency by reducing the number of components and conduction losses. Moreover, the number of component conducted is less compared to the other PFC converters. Since the converter is used for low power application around 100W, the converter is operated in Discontinuous Conduction Modes (DCM). The output voltage successfully regulated at 50Vdc and the converter is able to reshape the input current.