A Novel Single-Layer Winding Array and Receiver Coil Structure for Contactless Battery Charging Systems With Free-Positioning and Localized Charging Features
A Novel Single-Layer Winding Array and Receiver Coil Structure for Contactless Battery Charging Systems With Free-Positioning and Localized Charging Features
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DOI：
10.1109/tie.2010.2098379
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发表时间：
2011-09-01
影响因子：
7.7
通讯作者：
Hui, S. Y. Ron
中科院分区：
文献类型：
--
作者：
Zhong, W. X.;Liu, Xun;Hui, S. Y. Ron
平面非接触式电池充电系统是一项新兴技术，可广泛应用于便携式消费电子产品。本文从简要的历史背景开始，提出了一种用于平面非接触式电池充电系统的新型单层绕组阵列和带有圆柱形铁氧体磁芯的接收器线圈结构。该设计符合“Qi”标准，可以将多个设备以自由定位的方式同时放置在无线充电板上并进行充电。充电通量完全集中在负载内部选定的初级绕组和次级绕组之间的覆盖区域内。这种绕组设计的电磁特性通过有限元分析进行研究，并通过实际实施得到证实。
The planar contactless battery charging system is an emerging technology that can be applied to a wide range of portable consumer electronic products. Beginning with a brief historical background, this paper presents a new single-layer winding array and receiver coil structure with cylindrical ferrite cores for planar contactless battery charging systems. Complying with the "Qi" standard, this design enables multiple devices to be placed and charged simultaneously on the wireless charging pad in a free-positioning manner. The charging flux is totally localized within the covered area between the selected primary winding and the secondary winding inside the load. The electromagnetic characteristics of such winding design are studied in finite-element analysis and confirmed by practical implementation.