一种具有灵活输出电压和更高转换效率的三电平准两级单相PFC变换器

This paper presents a three-level quasi-two-stage single-phase power factor correction (PFC) converter that has flexible output voltage and improved conversion efficiency. The proposed PFC converter features sinusoidal input current, three-level output characteristic, and a wide range of output dc voltages, and it will be very suitable for high-power applications where the output voltage can be ei...