Power Relay Module Based Charging Function Extension for Standard Wireless Charger

doi:10.1109/PEAC56338.2022.9959515

	Power Relay Module Based Charging Function Extension for Standard Wireless Charger
	Xinxin, Yu1 ; Peng, Zhao1 ; Kaitian, Chao1 ; Xiaoxuan, Ji1 ; Minfan, Fu1,2
	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
DOI	10.1109/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.