H5-Bridge-Based Bowl-Shape Wireless Charger for Multiple Loads

被引：10
作者：
Zhao, Peng [1 ,2 ,3 ]
Ji, Xiaoxuan [1 ,2 ,3 ]
Wang, Haoyu [1 ,4 ]
Fu, Minfan [1 ,4 ]
机构：
[1] Shanghai Tech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China
[2] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Shanghai Tech Univ, Shanghai Engn Res Ctr Energy Efficient & Custom AI, Shanghai 201210, Peoples R China
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2023年 / 70卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Coils; Bridge circuits; Couplings; Inverters; Cellular phones; Wireless communication; Couplers; Bowl-shape charger; fast charging; H5; bridge; multiple loads; zero voltage switching (ZVS); IPT SYSTEMS; RECEIVER;
D O I：
10.1109/TIE.2022.3212386
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This article proposes a five-coil bowl-shape wireless charger based on an H5 bridge inverter. Inside the bowl, the five coils are customized and placed at different charging areas, which are able to offer two power channels for fast charging and multiload charging, respectively. A five-switch H5 bridge inverter is used to feed the optimal voltage through its multimode operation, which helps enhance the efficiency under various load conditions. The zero voltage switching is discussed for all the switches and achieved under the worst case, which is justified by the harmonic analysis. Finally, a 50-W experimental prototype is built and measured under various load conditions, and the peak charging efficiency is 88%.
引用
收藏
页码：8853 / 8861
页数：9
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