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Constant Voltage and Constant Current Wireless Charging System with Automatic Reconstruction of Topology
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Junping SU  Member, CPSS1, 2, Chun QIU3, Chentao ZHANG3
Journal of Power Supply | 2025, 23(8) : 226 - 234
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Journal of Power Supply | 2025, 23(8): 226-234
• Wireless Power Transfer •
Constant Voltage and Constant Current Wireless Charging System with Automatic Reconstruction of Topology
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Junping SU  Member, CPSS1, 2, Chun QIU3, Chentao ZHANG3
Affiliations
  • 1.School of Intelligent Manufacturing, Xiamen City University, Xiamen 361008, China
  • 2.Xiamen Open University, Xiamen 361008, China
  • 3.Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361102, China
Published: 2025-12-30 doi: 10.13234/j.issn.2095-2805.2025.8.226
Outline
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The battery charging process typically consists two stages, i.e., constant current (CC) followed by constant voltage (CV). However, the existing wireless power transfer (WPT) technology still encounters several challenges during the transition from the CC mode to CV mode, including battery state monitoring, requirement for bilateral communication and cross-coupling among multiple coils. To address these problems, a novel quasi-CLC-LCC topology is proposed, which can realize the smooth transition from the CC mode to CV mode without the need for additional control. A CLC compensation network is employed by the transmitter circuit, enabling the transmitting coil current to be considered as a CC source. On the secondary side, two series compensation circuits are connected in parallel, and two branches collaboratively achieve CC charging for the battery at the initial charging stage. As the charging process progresses, owing to the unidirectional conductivity of diodes, one of the branches is clamped and disconnected, enabling the WPT system to enter into CV output. Finally, an experimental platform with 2.6 A charging current and 105 V charging voltage was constructed to validate the feasibility of the proposed wireless charging topology.

Wireless power transfer (WPT)  /  constant current (CC)  /  constant voltage (CV)  /  topology design
苏君平中国电源学会会员, 邱椿, 张陈涛. 一种拓扑自动重构的恒压恒流无线充电系统. 电源学报, 2025 , 23 (8) : 226 -234 . DOI: 10.13234/j.issn.2095-2805.2025.8.226
Junping SU, Chun QIU, Chentao ZHANG. Constant Voltage and Constant Current Wireless Charging System with Automatic Reconstruction of Topology[J]. Journal of Power Supply, 2025 , 23 (8) : 226 -234 . DOI: 10.13234/j.issn.2095-2805.2025.8.226
Funding
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  • Natural Science Foundation of Fujian Province of China(2023J01047)
  • Natural Science Foundation of Xiamen City(3502Z20227185)
Appendix
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Year 2025 volume 23 Issue 8
67
5
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.8.226
  • Receive Date：2024-11-29
  • Online Date：2026-10-26
  • Published：2025-12-30
Article Data
Affiliations
History
  • Received：2024-11-29
  • Revised：2025-01-21
  • Accepted：2025-02-17
Funding
Natural Science Foundation of Fujian Province of China(2023J01047)
Natural Science Foundation of Xiamen City(3502Z20227185)
Affiliations
    1.School of Intelligent Manufacturing, Xiamen City University, Xiamen 361008, China
    2.Xiamen Open University, Xiamen 361008, China
    3.Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361102, China
References
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https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2025.8.226
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