Power Relay Module Based Multiple-load Charging Capability Extension
2022-10-17
会议录名称IECON 2022 – 48TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
ISSN1553-572X
发表状态已发表
DOI10.1109/IECON49645.2022.9968931
摘要Due to the limited size, the existing Qi standard based wireless chargers are not attractive and even fail to charge multiple devices. This paper explores the passive power relay module to extend the multiple-load capability cost-effectively without modifying the original transmitter. A power relay module constructed with three layers is proposed to rebuild an efficient power transfer path. When it is inserted between the transmitter and receivers, the power will be extracted from the transmitter by the bottom-layer auxiliary relay coil, then delivered to the top-layer relay coil through wired connection, and finally picked up by the receivers. A middle magnetic shield layer is also adopted to simplify the mutual coupling relations. The equivalent circuit model of the proposed system configuration is given based on fundamental harmonic approximation, and further to analyze the voltage gain and power transfer efficiency. Finally, a prototype system is built and measured under various load conditions. The almost load-independent output voltage is achieved, and the peak efficiency reaches 87%.
关键词Inductive power transfer multiple-load charging power relay module
会议地点Brussels, Belgium
会议日期17-20 Oct. 2022
URL查看原文
收录类别EI
来源库IEEE
文献类型会议论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/282065
专题信息科学与技术学院_本科生
信息科学与技术学院_PI研究组_傅旻帆组
信息科学与技术学院_硕士生
信息科学与技术学院_博士生
作者单位
1.ShanghaiTech University, Shanghai, China;
2.Shanghai Engineering Research Center of Energy Efficient and Custom Ai Ic, Shanghai, China
第一作者单位上海科技大学
第一作者的第一单位上海科技大学
推荐引用方式
GB/T 7714
Chao, Kaitian,Zhao, Peng,Yu, Xinxin,et al. Power Relay Module Based Multiple-load Charging Capability Extension[C],2022.
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