A Soft Switching Half-Bridge Doubler Boost Converter Operating with Unity Power  Factor

Roberto Mendes Finzi Neto; Enes Gonçalves Marra; Fernando Lessa Tofoli; Luiz Carlos de Freitas

doi:10.18618/REP.2005.1.077085

Authors

Roberto Mendes Finzi Neto Universidade Federal de Goiás Escola de Engenharia Elétrica e de Computação Praça Universitária s/n, Setor Universitário 74605-220 – Goiânia-GO – Brasil Fone/Fax: +55 62 5211806
Enes Gonçalves Marra Universidade Federal de Goiás Escola de Engenharia Elétrica e de Computação Praça Universitária s/n, Setor Universitário 74605-220 – Goiânia-GO – Brasil Fone/Fax: +55 62 5211806
Fernando Lessa Tofoli Universidade Federal de Uberlândia Faculdade de Engenharia Elétrica Campus Santa Mônica – Bloco "3N" Av. João Naves de Ávila, 2160 38400-902 – Uberlândia-MG – Brasil Fone/Fax: +55 34 32394166
Luiz Carlos de Freitas Universidade Federal de Uberlândia Faculdade de Engenharia Elétrica Campus Santa Mônica – Bloco "3N" Av. João Naves de Ávila, 2160 38400-902 – Uberlândia-MG – Brasil Fone/Fax: +55 34 32394166

DOI:

https://doi.org/10.18618/REP.2005.1.077085

Keywords:

Doubler boost converters, half-bridge converters, PFC, soft switching

Abstract

This paper proposes a half-bridge doubler boost converter associated with an active commutation cell in order to minimize commutation losses. The converter operates with unity power factor and is able to provide high output voltages. The voltages across the semiconductor devices are low and approximately equal to the output voltage, as doubled output voltages and reduced high frequency ripple can be achieved. A detailed mathematical analysis concerning its operation is presented, since simulation and experimental results describe the converter performance.

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Author Biographies

Roberto Mendes Finzi Neto, Universidade Federal de Goiás Escola de Engenharia Elétrica e de Computação Praça Universitária s/n, Setor Universitário 74605-220 – Goiânia-GO – Brasil Fone/Fax: +55 62 5211806

was born in Goiânia, Goiás, Brazil, on January 31st, 1974. He received the BSc, MSc and PhD degrees in Electrical Engineering from the Federal University of Uberlândia, Brazil, in 1997, 1999 and 2003, respectively. His research interest areas include high[1]frequency power conversion, modeling and control of converters, power factor correction circuits, and new converters topologies.

Enes Gonçalves Marra, Universidade Federal de Goiás Escola de Engenharia Elétrica e de Computação Praça Universitária s/n, Setor Universitário 74605-220 – Goiânia-GO – Brasil Fone/Fax: +55 62 5211806

was born in Brazil on 1966. He received the B.S. and M.S. degrees in Electrical Engineering from the Federal University of Uberlândia, Uberlândia, Brazil, and the Doctoral degree in electrical engineering from the State University of Campinas, Campinas, Brazil, in 1989, 1993, and 1999, respectively. Since 1993, he has been a Lecturer in the School of Electrical Engineering, Federal University of Goiás, Goiânia, Brazil. His research interests include electrical drives, power electronics applications, and renewable energy sources.

Fernando Lessa Tofoli, Universidade Federal de Uberlândia Faculdade de Engenharia Elétrica Campus Santa Mônica – Bloco "3N" Av. João Naves de Ávila, 2160 38400-902 – Uberlândia-MG – Brasil Fone/Fax: +55 34 32394166

was born on March 11th, 1976, in São Paulo, São Paulo, Brazil. He received the BSc and MSc degrees in Electrical Engineering from the Federal University of Uberlândia, Brazil, in 1999 and 2002, respectively. Nowadays he is PhD student at the Power Electronics Research Group of the same university. His research interests include power quality related issues, high power factor rectifiers and soft switching techniques applied to static power converters.

Luiz Carlos de Freitas, Universidade Federal de Uberlândia Faculdade de Engenharia Elétrica Campus Santa Mônica – Bloco "3N" Av. João Naves de Ávila, 2160 38400-902 – Uberlândia-MG – Brasil Fone/Fax: +55 34 32394166

was born in Prata, Minas Gerais, Brazil, on April 1st, 1952. He received the BSc degree in Electrical Engineering from the Federal University of Uberlândia, Brazil, in 1975, and the MSc and PhD degrees from the Federal University of Santa Catarina, Brazil, in 1985 and 1992, respectively. Nowadays he is with Department of Electrical Engineering of the Federal University of Uberlândia, Brazil. His research interests include high-frequency power conversion, modeling and control of converters, power factor correction circuits and novel converters topologies.

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