A Single-Switch-Buck (SSB) PFC Converter with Continuous Input Current

This paper proposes a novel single-switch-buck (SSB) power factor correction (PFC) rectifier. The proposed SSB PFC rectifier offers buck voltage gain ratio, a low number of components (only one switch), low voltage stress across semiconductors, high efficiency, and the prominent feature of continuous input current without the need for additional filters or complex control systems. These characteristics make it an attractive solution for various applications in the field of power electronics. The performance of the proposed rectifier is verified by simulation results under 130 W and 220 Vrms to 30 Vdc, which demonstrate its high efficiency, low total harmonic distortion, and excellent power factor under various input and output conditions.