A Novel High Efficiency Quasi-Resonant Converter
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 co...
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Online Access: | http://www.mdpi.com/1996-1073/11/8/1961 |
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doaj-f0325b3a6caa43c38110e5827dd10d9f2020-11-25T00:13:46ZengMDPI AGEnergies1996-10732018-07-01118196110.3390/en11081961en11081961A Novel High Efficiency Quasi-Resonant ConverterTianyu Zhu0Jianze Wang1Yanchao Ji2Yiqi Liu3School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, ChinaIn 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.http://www.mdpi.com/1996-1073/11/8/1961constant frequencyquasi-resonantswitch-control-capacitor (SCC)zero voltage switching (ZVS)zero current switching (ZCS)smaller volumehigher overall efficiency |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tianyu Zhu Jianze Wang Yanchao Ji Yiqi Liu |
spellingShingle |
Tianyu Zhu Jianze Wang Yanchao Ji Yiqi Liu A Novel High Efficiency Quasi-Resonant Converter Energies constant frequency quasi-resonant switch-control-capacitor (SCC) zero voltage switching (ZVS) zero current switching (ZCS) smaller volume higher overall efficiency |
author_facet |
Tianyu Zhu Jianze Wang Yanchao Ji Yiqi Liu |
author_sort |
Tianyu Zhu |
title |
A Novel High Efficiency Quasi-Resonant Converter |
title_short |
A Novel High Efficiency Quasi-Resonant Converter |
title_full |
A Novel High Efficiency Quasi-Resonant Converter |
title_fullStr |
A Novel High Efficiency Quasi-Resonant Converter |
title_full_unstemmed |
A Novel High Efficiency Quasi-Resonant Converter |
title_sort |
novel high efficiency quasi-resonant converter |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2018-07-01 |
description |
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. |
topic |
constant frequency quasi-resonant switch-control-capacitor (SCC) zero voltage switching (ZVS) zero current switching (ZCS) smaller volume higher overall efficiency |
url |
http://www.mdpi.com/1996-1073/11/8/1961 |
work_keys_str_mv |
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