Power Relay Module Based Charging Function Extension for Standard Wireless Charger
2022-11-07
会议录名称2022 IEEE INTERNATIONAL POWER ELECTRONICS AND APPLICATION CONFERENCE AND EXPOSITION (PEAC)
发表状态已发表
DOI10.1109/PEAC56338.2022.9959515
摘要Owing to the merits such as higher convenience and safety, the inductive power transfer has been increasingly popular to wireless charging applications. The corresponding standards such as Qi further promote and guide the design of wireless chargers. However, a standardized transmitter usually fails to charge a device with mismatched size. This paper explores the power relay module to extend the charging function. Two coils in the relay module are utilized to rebuild an efficient power transfer path and address the size mismatch issue. The bottom relay coil efficiently absorbs power from transmitter through a strong coupling, and then transfers power to the top relay coil with wired connection. The top relay coil then excites a magnetic field and delivers power to the receiver. The two relay coils can be customized with the identical sizes of transmitter and receiver respectively, and significantly improve the power transfer efficiency. In the relay module, the high-order compensation network is applied to help to ensure the load-independent output voltage for the device. Finally, based on the proposed method, a 20 V/20 V 30-W prototype is built. The nearly constant output voltage and 88% peak efficiency are achieved.
关键词Wireless charging power relay module load-independent output
会议地点Guangzhou,Guangdong, China
会议日期4-7 Nov. 2022
URL查看原文
收录类别EI
语种英语
来源库IEEE
文献类型会议论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/286562
专题信息科学与技术学院
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_本科生
信息科学与技术学院_博士生
通讯作者Minfan, Fu
作者单位
1.ShanghaiTech University, School of Information Science and Technology
2.Shanghai Engineering Research Center of Energy Efficient and Custom AI IC
第一作者单位信息科学与技术学院
通讯作者单位信息科学与技术学院
第一作者的第一单位信息科学与技术学院
推荐引用方式
GB/T 7714
Xinxin, Yu,Peng, Zhao,Kaitian, Chao,et al. Power Relay Module Based Charging Function Extension for Standard Wireless Charger[C],2022.
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