Home Journals Articles Updates About
CN
image
收藏切换
Design Method for LLC Soft-switching Based on Dead-time Commutation Timing Sequence Analysis
收藏切换
Minhua QIAN1, Xiao LI1, Haichen LIU1, Yiming FENG2, Rui LI2
Journal of Power Supply | 2026, 24(1) : 100 - 108
Less
收藏切换
Journal of Power Supply | 2026, 24(1): 100-108
• Power Converter Modeling and Control •
Design Method for LLC Soft-switching Based on Dead-time Commutation Timing Sequence Analysis
Full
Minhua QIAN1, Xiao LI1, Haichen LIU1, Yiming FENG2, Rui LI2
Affiliations
  • 1.Research Institute of Science and Technology Co., Ltd., China Electrical Equipment Group, Shanghai 200040, China
  • 2.Key Laboratory of Control of Power Transmission and Conversion of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
Published: 2026-01-30 doi: 10.13234/j.issn.2095-2805.2026.1.100
Outline
收藏切换

LLC converters are widely applied in the fields of household energy storage and distributed energy storage owing to their excellent features such as a good soft-switching range and a high power density. In the modulation design of LLC converters, to achieve a high efficiency, it is necessary to meet the conditions for resonant soft-switching based on the design of hardware parameters with a low overall power loss of the converter. The commutation process during the dead-time is analyzed to explore the influences of the parasitic parameters of switching devices on the realization of soft-switching in the converter. By optimizing the switching timing sequence during the dead-time and utilizing the circuit mechanism where the parasitic parameters of switching devices participate in resonance, the realization of soft-switching is facilitated, ensuring a higher operation efficiency. Considering the loss distribution during the dead-time, the impact of not changing the modulation under bidirectional power flow conditions on the efficiency is analyzed. Finally, verification was performed by building a 4 kW LLC prototype to carry out a bidirectional power transmission experiment.

LLC converter  /  dead-time commutation  /  soft-switching
钱敏华, 李霄, 刘海晨, 冯奕鸣, 李睿. 基于死区换流时序分析的LLC软开关设计方法. 电源学报, 2026 , 24 (1) : 100 -108 . DOI: 10.13234/j.issn.2095-2805.2026.1.100
Minhua QIAN, Xiao LI, Haichen LIU, Yiming FENG, Rui LI. Design Method for LLC Soft-switching Based on Dead-time Commutation Timing Sequence Analysis[J]. Journal of Power Supply, 2026 , 24 (1) : 100 -108 . DOI: 10.13234/j.issn.2095-2805.2026.1.100
Appendix
Less
Year 2026 volume 24 Issue 1
35
3
Cite this Article
BibTeX
Article Info
doi: 10.13234/j.issn.2095-2805.2026.1.100
  • Receive Date：2024-10-12
  • Online Date：2026-10-26
  • Published：2026-01-30
Article Data
Affiliations
History
  • Received：2024-10-12
  • Revised：2024-12-31
  • Accepted：2025-01-08
Affiliations
    1.Research Institute of Science and Technology Co., Ltd., China Electrical Equipment Group, Shanghai 200040, China
    2.Key Laboratory of Control of Power Transmission and Conversion of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
References
Share
https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2026.1.100
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House