A critical-conduction-mode bridgeless interleaved boost power factor correction

This paper explains about fundamental working principles, governing equations, implementation problems, and experimental results of a new power factor correction (PFC) topology. In this proposed topology, bridgeless technique is applied to a critical-conduction-mode (CRM) interleaved boost PFC in order to gain fundamental understanding towards high efficiency, high performance, low-cost, simple control scheme, and low conducted electromagnetic interference (EMI) circuit. This application is targeted for low to middle power applications that normally employs continuous or interleaved boost converter.