An active PFC boost converter topology for power factor correction

Abstract

This paper introduces a single-stage active power factor correction (PFC) AC-DC converter which provides almost unity power factor and minimizes the THD to 7.4 %. For a constant DC output voltage a single phase diode bridge rectifier with a large output capacitor is considered in this paper. This standard topology has a shortcoming of introducing lower order harmonics and become cause of poor power factor, which needs to be improved. MATLAB Simulation software is used to simulate a simulation model of 350 W output for both passive and active PFC methods. Simultaneously, the experimental prototype for 350W/390V output with active PFC method is designed and experimental results are verified.