Research on Principle and Control Method of Totem-Pole PFC

Active power factor correction is an effective method to suppress harmonic current and improve power factor. One of the important developing directions of power factor correction circuit is to improve conversion efficiency. Among various kinds of power factor correction circuits, the Totem-Pole boost power factor correction circuit, as a bridgeless PFC, uses fewer devices and theoretically achieves higher conversion efficiency and better performance. In this paper, the working principle of Totem-Pole PFC is analyzed, a Totem-Pole PFC control scheme is proposed, and the SimCoder simulation tool is used for simulation. The feasibility of the scheme is verified through the simulation results.