Analysis of the Magnetizing Inductance Influence on Current Stresses of the Wide-zvs-range Asymmetrical Half-Bridge Converter

Carlos Henrique Illa Font; Eloi Agostini Junior

doi:10.18618/REP.2015.1.050058

Authors

Carlos Henrique Illa Font Federal University of Technology – Paraná, UTFPR, Campus Ponta Grossa
Eloi Agostini Junior Department of Electronics Engineering, DAELE, Ponta Grossa, PR, Brazil

DOI:

https://doi.org/10.18618/REP.2015.1.050058

Keywords:

Asymmetrical Half-Bridge DC-DC Converter, Magnetizing Inductance, Wide-ZVS-Range, ero-Voltage-Switching

Abstract

This paper presents the analysis of the magnetizing inductance influence on the current stresses of the asymmetrical half-bridge (ASHB) DC-DC converter power stage components. One solution for extending the soft-switching operating range is to reduce the magnetizing inductance, which has the collateral effect of increasing the converter’s conduction losses. Hence, in order to meet trade-off requirements of high efficiency at light load with minimum heavy load conduction loss penalty, the impact of magnetizing inductance value on the ASHB converter current stresses is quantified. A 500 W, 300 V input, 60 V output, 50 kHz laboratory prototype is built to verify the ZVS-range operation and efficiency penalty for several values of magnetizing inductance.

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Author Biographies

Carlos Henrique Illa Font, Federal University of Technology – Paraná, UTFPR, Campus Ponta Grossa

was born in Erval Grande, Rio Grande do Sul, Brazil, in 1976. He received the B.Sc., M.Sc. and Ph.D. degrees in electrical engineering from Federal University of Santa Catarina, Brazil, in 2001, 2003 and 2009, respectively. Since 2010 he is with Federal University of Technology- Paraná, Câmpus Ponta Grossa, Brazil. His interest areas include PFC converters, three-phase AC-DC converters and switching-mode power supplies for industrial applications. Prof. Carlos is Member of IEEE Power Electronics Society, IEEE Industrial Electronics Society and Brazilian Power Electronics Society (SOBRAEP).

Eloi Agostini Junior, Department of Electronics Engineering, DAELE, Ponta Grossa, PR, Brazil

was born in Lages, SC, Brazil, on January 19, 1983. He received the B.S., M.S. and Ph.D. degrees from the Federal University of Santa Catarina in 2006, 2008 and 2012, respectively. He is currently a Professor in the Electronics Department of the Federal University of Technology – Paraná. His interest research areas include dc-dc converters, soft-switching, converter modeling and renewable energy processing.

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