Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2001.10a
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- Pages.227-231
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- 2001
A Primary-Side-Assisted Zero-Voltage and Zero-Current Switching Three-Level DC-DC Converter
- Jeon S. J. (Dept. of Electronic Engineering Pukyong National University) ;
- Canales F. (Center for Power Electronics System(CPES) Bradley Dept. of Electrical and Computer Engineering Virginia Polytechnic Institute and State University) ;
- Barbosa P. M. (Center for Power Electronics System(CPES) Bradley Dept. of Electrical and Computer Engineering Virginia Polytechnic Institute and State University) ;
- Lee F. C. (Center for Power Electronics System(CPES) Bradley Dept. of Electrical and Computer Engineering Virginia Polytechnic Institute and State University)
- Published : 2001.10.01
Abstract
A new primary-side-assisted zero-voltage and zero-current switching (ZVZCS) three-level DC-DC converter with flying capacitor is proposed. The three-level converters are promising in high voltage applications, and ZVZCS is a very effective means for reducing switching losses. The proposed DC-DC converter uses only one auxiliary transformer and two diodes to obtain ZCS for the inner leg. It has a simple and robust structure, and offers soft-switching capability even in short-switching conditions. The proposed converter was verified by experiments in a 6KW prototype designed for communication applications and operating at 100kHz.
Keywords
- DC-DC Converter;
- Zero-Voltage and Zero-Current Switching;
- ZVZCS;
- Three-Level Converter;
- Primary-Side-Assisted ZVZCS