一种平面结构无线供电发送线圈的设计  

A Design of a Planner Transmitting Coil for Wireless Power Transfer

作　　者：程筱军[1] 

机构地区：[1]杭州电子科技大学电子信息学院,浙江杭州310018

出　　处：《杭州电子科技大学学报（自然科学版）》2015年第2期9-12,共4页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：国家自然科学基金资助项目(61306032)

摘　　要：在手机等无线供电平台应用中,阻抗匹配网络提高效率的方法在发送线圈和接收线圈间的耦合系数变化时无法达到最优。为此,提出了一种在离发送线圈一定高度处产生均匀磁场的发送线圈设计方法,通过并联多个同心圆线圈,并在每圈上并联一个电容,使每圈上电流的比例由电容值比例决定。经仿真验证,相比于传统的依靠每圈之间线间距不同的串联型平面螺旋线圈,该方法得到磁场均匀性更好。The impedance matching network can be used to optimize the efficiency of the wireless power transfer, if the coupling coefficient between the transmitting and the received coils are not variable .In order to achieving uniform magnetic filed which is produced by the transmitting coil , a new design method is proposed . A series of concentric circular turns are parallel connected with a capacitor connected in series with each turn . The current in each turn which is determined by the capacitor should be designed carefully .The new design is verified by the HFSS simulation .Compared with the traditional spiral coil which depends on the turn position distribution , the new design is better in achieving uniform magnetic field .

关 键 词：无线供电 线圈 均匀磁场 

分 类 号：TM910[电气工程—电力电子与电力传动]