Totem-Pole Bridgeless PFC Converter in DCM with Synchronous Rectification

This paper presents the mathematical modeling and simulation used for Totem-Pole Bridgeless topology design, operating in a discontinuous conduction mode with the addition of Synchronous Rectification and applied to power factor correction. The operational steps of this topology, and thus, the modeling of the equations necessary for its project are presented. Also, focus will be given to the zero-crossing switching problems, intrinsic to this topology, and mitigation techniques will be addressed. Lastly, the simulation results will be presented using the software PSIM.