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Advances in Power Electronics
Volume 2011 (2011), Article ID 925618, 10 pages
http://dx.doi.org/10.1155/2011/925618
Research Article

A Zero-Voltage-Transition Interleaved Boost Converter and Its Application to PFC

Electrical Engineering Department, State University of Londrina, P.O. Box 6001, 86051-990 Londrina, PR, Brazil

Received 30 June 2011; Revised 26 August 2011; Accepted 13 September 2011

Academic Editor: Jose Pomilio

Copyright © 2011 Lúcio dos Reis Barbosa. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An efficient power factor correction converter is presented. Two boost-topology switching cells are interleaved to minimize EMI while operating at lower switching frequency and soft switching to minimize losses. The result is a system with high conversion efficiency, able to operate in a pulse-width-modulation (PWM) way. Seven transition states of the ZVT converter in one switching period are described. In order to illustrate the operational principle key, implementation details, including simulations, are described. The validity of this converter is guaranteed by the obtained results.