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ew 24(1):

Editorial

Design of Capacitive Power Transfer System with Small Coupling Capacitance for Wireless Power Transfer

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  • @ARTICLE{10.4108/ew.5735,
        author={Xin Wang and Xin Wan and Yaodong Hua and Yunkai Zhao and Yuxin Wang},
        title={Design of Capacitive Power Transfer System with Small Coupling Capacitance for Wireless Power Transfer},
        journal={EAI Endorsed Transactions on Energy Web},
        volume={11},
        number={1},
        publisher={EAI},
        journal_a={EW},
        year={2024},
        month={12},
        keywords={Class-E amplifier, capacitive power transfer, ZVS conditions, Additional capacitor},
        doi={10.4108/ew.5735}
    }
    
  • Xin Wang
    Xin Wan
    Yaodong Hua
    Yunkai Zhao
    Yuxin Wang
    Year: 2024
    Design of Capacitive Power Transfer System with Small Coupling Capacitance for Wireless Power Transfer
    EW
    EAI
    DOI: 10.4108/ew.5735
Xin Wang1,*, Xin Wan1, Yaodong Hua1, Yunkai Zhao1, Yuxin Wang2
  • 1: Shenyang Ligong University
  • 2: Tianjin Agricultural University
*Contact email: sylaizh@163.com

Abstract

Wireless power transfer systems play an important role in the application of modern power supply technology. Wireless charging has been widely used in portable devices such as smartphones, laptops, and even some medical devices. Higher system efficiency can be achieved while reducing costs. This article describes the design of a capacitive power transfer (CPT) system using the Class-E amplifier method. When the capacitance of the coupling plate is small, the operation of Class-E amplifiers under Zero-Voltage-Switching (ZVS) conditions is very sensitive to their circuit parameters. By adding an additional capacitor to the Class-E amplifier, the coupling capacitance can be increased, resulting in better circuit performance. The high efficiency of the Class-E amplifier is verified by simulation and experimental results.

Keywords
Class-E amplifier, capacitive power transfer, ZVS conditions, Additional capacitor
Received
2024-12-04
Accepted
2024-12-04
Published
2024-12-04
Publisher
EAI
http://dx.doi.org/10.4108/ew.5735

Copyright © 2024 X. Wang et al., licensed to EAI. This is an open access article distributed under the terms of the CC BY-NC-SA 4.0, which permits copying, redistributing, remixing, transformation, and building upon the material in any medium so long as the original work is properly cited.

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