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In wireless power transfer (WPT) systems of lithium battery charging, constant current (CC) charging and constant voltage (CV) charging are two stages. To realize these two charging stages simultaneously, a reconfigurable compensation topology WPT system based on the receiving side was proposed. This system only multiplexes one switch of the rectifier circuit to switch the system from the CC output of the S-S topology to the CV output of the S-LCC topology, thereby realizing CC and CV charging. Compared with the traditional reconfigurable WPT system, this system does not need to introduce additional passive components and relays for its small size, low cost, and simple structure. During the charging process, the system does not need to switch the operating frequency and meets the zero phase angle (ZPA) operating conditions, further improving system efficiency. Finally, this paper proves the feasibility of the system through simulation verification.

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Constant Current and Voltage Wireless Charging System Based on Reconfigurable Half-Bridge Compensation Topology

  • 会议论文

  • 发表日期：

    2025年

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  • Le Yu,
  • Yuhang Chen,
  • Shujia Xu

摘要

In wireless power transfer (WPT) systems of lithium battery charging, constant current (CC) charging and constant voltage (CV) charging are two stages. To realize these two charging stages simultaneously, a reconfigurable compensation topology WPT system based on the receiving side was proposed. This system only multiplexes one switch of the rectifier circuit to switch the system from the CC output of the S-S topology to the CV output of the S-LCC topology, thereby realizing CC and CV charging. Compared with the traditional reconfigurable WPT system, this system does not need to introduce additional passive components and relays for its small size, low cost, and simple structure. During the charging process, the system does not need to switch the operating frequency and meets the zero phase angle (ZPA) operating conditions, further improving system efficiency. Finally, this paper proves the feasibility of the system through simulation verification.