Abstract：PCB coils with unique advantages, which is widely used in magnetic resonant wireless power transmission. when the transfer distance of system is short, which leads to a sharp decline in the efficiency. Aiming at this problem, this paper presents an effective method to improve the short distance transfer efficiency. Firstly, this paper analyses the work principle of antiparallel coil, then provides the calculation formulas of the parameters of the coil, and then analyses magnetic resonant system of the four coils structure. Finally, experimental results show the method is feasible, which can provide a reference for the design of short distance magnetic resonant wireless power transfer technology.
丘小辉, 卢文成, 毛行奎. 一种提高PCB线圈的近距离传输效率的方法[J]. 电气技术, 2015, 16(11): 7-11.
Qiu Xiaohui, Lu Wencheng, Mao Xingkui. The Method for Improving the Short Distance Transfer Efficiency of PCB Coil. Electrical Engineering, 2015, 16(11): 7-11.
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