ShanghaiTech University Knowledge Management System
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 |
ISSN | 1553-572X |
发表状态 | 已发表 |
DOI | 10.1109/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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