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Synchronous Bidirectional DC-DC Converter Applying Soft-Switching Technique  

Lee, Dong-Gyu (한양대 대학원 전기공학과)
Park, Nam-Ju (한양대 대학원 전기공학과)
Hyun, Dong-Seok (한양대 전기제어생체공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.13, no.4, 2008 , pp. 311-318 More about this Journal
Abstract
This paper proposes synchronous bidirectional DC-DC converter applying soft-switching technique. The proposed converter integrates two advantages which are conduction loss minimization and switching loss elimination by applying interleaved synchronous buck and ZVT-cell with a single resonant inductor. ZVS is guaranteed for wide load range in CCM(Continuous Conduction Mode) as well as wide output voltage range by current injection method. Also, reverse recovery effects of body diode can be minimized. In addition, it is possible to significantly reduce diode drop voltage occurred during dead time of conventional synchronous buck converter. The validity of the proposed converter is verified through experimental results.
Keywords
DC-DC Converter; Soft-Switching; Bidirectional Converter;
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