Fully soft-switched bidirectional resonant dc-dc converter with a new CLLC tank

A bidirectional dc-dc converter with a new CLLC type resonant tank, which features in ZVS for the input inverting port switches and ZCS for the output rectifier port switches, regardless of the direction of the power flow, is proposed. If the MOSFETs are implemented as all of the main switches, the...

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Bibliographic Details
Main Authors: Wei Chen, Siran Wang, Xiaoyuan Hong, Zhengyu Lu, Shaoshi Ye
Format: Conference Proceeding
Language:English
Subjects:
Bidirectional dc-dc converter
DC-DC power converters
Load flow
MOSFETs
Rectifiers
Resonance
Switches
Switching converters
Switching loss
Topology combination
ZCS
Zero current switching
Zero voltage switching
ZVS
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Description
Summary:A bidirectional dc-dc converter with a new CLLC type resonant tank, which features in ZVS for the input inverting port switches and ZCS for the output rectifier port switches, regardless of the direction of the power flow, is proposed. If the MOSFETs are implemented as all of the main switches, the proposed converter has a minimized switching loss. The detail operation principles, as well as the design considerations, are presented. A prototype, which interfacing the 400 V/48 V DC buses for the UPS system with a power rating of 500 VA, whose highest conversion efficiencies for the bidirectional mode both exceed 96%, was developed to verify the validity and applicability of this proposed converter.
ISSN:1048-2334
2470-6647
DOI:10.1109/APEC.2010.5433345