Design of single stage integrated bridgeless-boost PFC converter

Abstract

DC power supplies are used in the extreme way in almost all electronic and electrical appliances eg : personal computers, audio sets, TV, Adapters etc. This paper discusses the reduced high conduction losses & increased efficiency of the proposed integrated Bridgeless-Boost PFC converter. By modifying the circuit according to the technology and the necessity the overall power factor can be improved to the expectation of user. The cause of having low power factor in the bridgeless power factor converter is the presence of two energy conversion stages. These stages cause more conduction losses into the circuit. In this paper research is advanced and preceded on the concept of single stage power converter. This highly efficient single stage integrated Bridgeless-Boost power factor correction converter is proposed. Introduction of the Bridgeless-Boost rectifier is given in the first section i.e. SECTION I showing how the BBPFC overcomes the drawbacks of the conventional boost PFC circuit. SECTION II explains the different approaches used for integration of PFC circuits. In SECTION III the proposed circuit is introduced and its complete operating modes are explained. Then finally superiority of the proposed circuit is verified by doing the simulation and verifying the results in the last section. Complete experimental analysis of the circuit is done on 230V ac, 50 Hz. Thus this paper introduces the Integrated Bridgeless-Boost PFC Converter along with the verification with the simulated and experimented results.