LAPSE:2018.0484
Published Article
LAPSE:2018.0484
A Novel High Efficiency Quasi-Resonant Converter
Tianyu Zhu, Jianze Wang, Yanchao Ji, Yiqi Liu
September 21, 2018
In this paper, a new constant-frequency quasi-resonant converter is proposed. Compared with the traditional LLC converter, the proposed converter can effectively reduce the range of the operating frequency. The output voltage is changed to adjust the reactance of the resonant cavity. The proposed converter has a better loss factor. To verify the theoretical analysis and soft-switching condition, a 250 W, 100 V output prototype was built and compared with the full-bridge LLC converter. Analysis and experimental results verify that a smaller operating frequency range and volume of the transformers, a soft-switching condition, and a higher overall efficiency are achieved with the proposed converter.
Keywords
constant frequency, higher overall efficiency, quasi-resonant, smaller volume, switch-control-capacitor (SCC), zero current switching (ZCS), zero voltage switching (ZVS)
Subject
Suggested Citation
Zhu T, Wang J, Ji Y, Liu Y. A Novel High Efficiency Quasi-Resonant Converter. (2018). LAPSE:2018.0484
Author Affiliations
Zhu T: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China [ORCID]
Wang J: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
Ji Y: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
Liu Y: School of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, China
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Journal Name
Energies
Volume
11
Issue
8
Article Number
E1961
Year
2018
Publication Date
2018-07-27
Published Version
ISSN
1996-1073
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Original Submission
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PII: en11081961, Publication Type: Journal Article
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LAPSE:2018.0484
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doi:10.3390/en11081961
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Sep 21, 2018
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CC BY 4.0
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[v1] (Original Submission)
Sep 21, 2018
 
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Sep 21, 2018
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Calvin Tsay
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