The regulated output characteristic is crucial for a wireless power transfer (WPT) system. Most studies focus on the single-load system or the system with multiple evenly distributed loads; however, the loads might distribute in space at different distances from the power supply in practice. In this article, a WPT hybrid repeater system is proposed to power multiple loads over a long distance. The output mode of each load in the system can be switched separately to realize the load-independent constant-current (CC) or constant-voltage (CV) output. Based on four compensation network combinations of a two-load WPT repeater system with CC/CV output, the structure of the $N$ -load WPT hybrid repeater system with load-independent CC/CV output is derived. With the ZPA input characteristic, fixed operating frequency, and high system efficiency, the proposed system can be easily used in various medium- or low-power applications. The effects of system parameters on output characteristics, power transfer capability, and system efficiency are investigated. A three-load experimental prototype was built to verify the theoretical analysis. Measurement results were in good agreement with the analysis, and the maximum measured efficiency reached 83%.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Wireless Power Transfer to Multiple Loads Over a Long Distance With Load-Independent Constant-Current or Constant-Voltage Output


    Contributors:
    Xie, Xinhao (author) / Xie, Congzhen (author) / Li, Licheng (author)


    Publication date :

    2020-09-01


    Size :

    5177550 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Constant current/constant voltage output method of wireless charging system

    LIU JIAOJIAO / NIU WANGQIANG / CHEN ZAIXING et al. | European Patent Office | 2021

    Free access

    Anti-offset staged constant-current constant-voltage output wireless charging system

    XIA LIN / HONG XIAO / ZHANG WEIFENG et al. | European Patent Office | 2022

    Free access


    Constant-current constant-voltage anti-offset output wireless charging system and charging method

    GONG ZHAOWEI / LI ZHONGZHAO / WANG PENG et al. | European Patent Office | 2021

    Free access