2nd China International Youth Conference on Electrical Engineering (CIYCEE 2021)

In our modern society, AC-DC converters with the power factor correction (PFC) function are widely used. They are named PFC converters. Since the 1990s, PFC converters have been focused on performance improvements in the aspects of efficiency, input current harmonics, power density, cost, etc.
This speech mainly focuses on the question that how to achieve a PFC converter with high efficiency, low volume, and low cost, simultaneously. Our solutions to answer this question includes three steps. The first step is to find the bridgeless topology candidates by the bridgeless topology derivation method. Secondly, the component physical property-based modeling and design procedure are conducted to show us which topology candidate to use in one specific application. Thirdly, the control and analysis aspects are concentrated on the selected topology candidate to ensure that it can be qualified for the targeted application. In our case, the 5G wireless network is the main focused application.