Analysis, Design, And Experimentation of a Buck Converter Based on the Three-state Switching Cell Operating in Overlapping Mode

Authors

  • Falcondes José Mendes de Seixas UNESP – Univ. Estadual Paulista - Ilha Solteira - SP, Brazil
  • Juan Paulo Robles Balestero IFSC – Federal Institute of Santa Catarina - Chapecó-SC, Brazil
  • Claudiner Mendes de Seixas IFSP – Federal Institute of São Paulo - Votuporanga-SP, Brazil
  • Fernando Lessa Tofoli UFSJ – Federal University of São João del-Rei - MG – Brasil
  • Grover Victor Torrico-Bascopé GTB Power Electronics Research and Technology AB - Kista, Sweden

DOI:

https://doi.org/10.18618/REP.2013.1.804814

Keywords:

3SSC, Buck converter, DC-DC Converters, three-state switching cell

Abstract

This work presents the detailed analysis of the dc-dc nonisolated buck converter based on the three-state switching cell operating in overlapping mode, which occurs when the duty cycle of the active switches is higher than 0.5. Only part of the load power is processed by the active switches due to the use of the autotransformer, thus reducing the peak current through the switches to half of the load current, as higher power levels can then be achieved by the proposed topology. The volume of reactive elements i.e. inductors and capacitors is also decreased since the ripple frequency of the output voltage is twice the switching frequency. Due to the intrinsic characteristics of the topology, total losses are distributed among all semiconductors. Another advantage of this converter is the reduced region for discontinuous conduction mode when compared to the conventional buck converter as demonstrated by the static gain plot. Besides, the input current is continuous and the ripple current is reduced, what is not verified in the classical buck converter. The theoretical approach is detailed through qualitative and quantitative analyses, design procedure, and a comparison with similar topologies. Finally, an experimental prototype rated at 1 kW is implemented, while the main experimental results are presented and adequately discussed to clearly identify its claimed advantages.

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Author Biographies

Falcondes José Mendes de Seixas, UNESP – Univ. Estadual Paulista - Ilha Solteira - SP, Brazil

was born in Jales, SP, Brazil in 1965. He received the B.S. degree in electrical engineering from the Engineering School of Lins, Brazil, in 1988 and the M.S. and Ph.D. degrees in electrical engineering from the Federal University of Santa Catarina, Florianópolis, Brazil, in 1993 and 2001, respectively. Currently, he is an Assistant Professor at the Department of Electrical Engineering, UNESP – Univ. Estadual Paulista, Ilha Solteira, Brazil. His research interests include power factor correction, switching mode power supplies, and multipulse transformer applications.

Juan Paulo Robles Balestero, IFSC – Federal Institute of Santa Catarina - Chapecó-SC, Brazil

was born on February 20, 1978, in Jales, Brazil. He received the B.Sc. and M.Sc. degrees in electrical engineering from the State University of São Paulo, Ilha Solteira, Brazil, in 2004 and 2006, respectively. Currently he is a professor with the Federal Institute of Education, Science and Technology of Santa Catarina, Chapecó, Brazil. His research interests include dc-dc converters and converter topologies.

Claudiner Mendes de Seixas, IFSP – Federal Institute of São Paulo - Votuporanga-SP, Brazil

received the B.S. degree in electrical engineering from the Engineering School of Lins, Brazil, in 1991 and the M.S. degrees in electrical engineering from the Federal University of Santa Catarina, Florianópolis, Brazil, in 1993. After that he worked for approximately 16 years in a company in the infrastructure area for telecommunications. Currently he is a professor with the Federal Institute of Education, Science and Technology of São Paulo, Votuporanga, Brazil. His research interests include power quality, power factor correction and green energy applications.

Fernando Lessa Tofoli, UFSJ – Federal University of São João del-Rei - MG – Brasil

was born on March 11, 1976, in São Paulo, Brazil. He received the B.Sc., M.Sc., and Ph.D. degrees in electrical engineering from the Federal University of Uberlândia, Uberlândia, Brazil, in 1999, 2002, and 2005, respectively. Currently, he is a Professor with the Federal University of São João del-Rei, São João del-Rei, Brazil. His research interests include power-quality-related issues, high-power factor rectifiers, and soft switching techniques applied to static power converters.

Grover Victor Torrico-Bascopé, GTB Power Electronics Research and Technology AB - Kista, Sweden

received the B.Sc. degree in electrical engineering from San Simón University, Cochabamba, Bolivia, in 1993, and the M.Sc. and Dr. degrees in electrical engineering from the Federal University of Santa Catarina, Florianopolis, Brazil, in 1996 and 2001, respectively. From 2001 to 2002, he was an Advisor with Emerson Energy System, Brazil, where he developed ac/dc threephase rectifiers. In 2003, he was a Senior Design Engineer with Emerson Network Power Company, Ltd., Stockholm, Sweden. From 2004 to 2009, he was a Senior Engineer in Power Electronics Designs with the R&D Group, Eltek Valere AB, Sweden, where he developed ac/dc three-phase and single-phase highly efficient rectifiers and dc/dc multioutput supplies to the telecom industry. Since July 2009, he has been a Senior Design Engineer with GTB Power Electronics Research and Technology AB, Kista, Sweden, where he is a Consultant and is offering new highefficiency (HE) circuit topologies to the power electronic industry. He has published more than 20 technical papers and is the holder of two patents. His main research areas are in industrial power electronics and creating new platforms with HE topologies for high-power and green energy applications.

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Published

2013-02-28

How to Cite

[1]
F. J. M. de Seixas, J. P. R. Balestero, C. M. de Seixas, F. L. Tofoli, and G. V. Torrico-Bascopé, “Analysis, Design, And Experimentation of a Buck Converter Based on the Three-state Switching Cell Operating in Overlapping Mode”, Eletrônica de Potência, vol. 18, no. 1, pp. 804–814, Feb. 2013.

Issue

Vol. 18 No. 1 (2013)

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Original Papers

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Copyright (c) 2013 Revista Eletrônica de Potência

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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