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Resonant Tank Design Considerations and Implementation of a LLC Resonant Converter with a Wide Battery Voltage Range
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논문 기본 정보

Type
Academic journal
Author
Wenjin Sun (Nanjing University of Aeronautics and Astronautics) Hongfei Wu (Nanjing University of Aeronautics and Astronautics) Haibing Hu (Nanjing University of Aeronautics and Astronautics) Yan Xing (Nanjing University of Aeronautics and Astronautics)
Journal
THE KOREAN INSTITUTE OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.15 No.6 KCI Accredited Journals SCIE
Published
2015.11
Pages
1,446 - 1,455 (10page)

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Resonant Tank Design Considerations and Implementation of a LLC Resonant Converter with a Wide Battery Voltage Range
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Abstract· Keywords

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This paper illustrates resonant tank design considerations and the implementation of a LLC resonant converter with a wide battery voltage range based on the fundamental harmonic approximation (FHA) analysis. Unlike the conventional design at zero load, the parameter K (the ratio of the transformer magnetizing inductor Lm to the resonant inductor Lr) of the LLC converter in this paper is designed with two charging points, (V<SUB>o_min</SUB>, I<SUB>o_max1</SUB>) and (V<SUB>o_max</SUB>, I<SUB>o_max2</SUB>), according to the battery charging strategy. A 2.9kW prototype with an output voltage range of 36V to 72V dc is built to verify the design. It achieves a peak efficiency of 96%.

Contents

Abstract
I. INTRODUCTION
II. RESONANT TANK DESIGN PROCEDURE
III. PRACTICAL DESIGN CONSIDERATIONS
IV. EXPERIMENTAL RESULTS
V. CONCLUSION
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