公开(公告)号：US20160241086A1

公开(公告)日：2016-08-18

申请号：US15029741

申请日：2014-09-23

申请人： LG ELECTRONICS INC.

发明人： Byungsang JUNG ,  Beomseok CHAE ,  Yongcheol PARK ,  Kyunghwan KIM

IPC分类号： H02J50/12 ,  H02J50/80

CPC分类号： H02J50/12 ,  H02J50/80

摘要： The present specification which relates to a wireless power transmission device and a control method, capable of transmitting and receiving power wirelessly comprises a power supply unit for supplying power to a receiving device to transmit power wirelessly; and a power transmission control unit for, periodically generating a waveform with a particular frequency, measuring an attenuation coefficient of the waveform at each cycle, measuring a variation in the attenuation coefficient at each cycle, and determining the type of an external material. The present invention has a technical feature wherein the power transmission control unit determines whether to transmit power wirelessly to the receiving device on the basis of the type of the external material.

摘要翻译： 能够无线发送和接收电力的无线电力传输装置和控制方法的本说明书包括用于向接收装置供电以供无线发射功率的电源单元; 以及功率传输控制单元，用于周期性地产生具有特定频率的波形，测量每个周期上的波形的衰减系数，测量每个周期的衰减系数的变化，以及确定外部材料的类型。 本发明具有技术特征，其中电力传输控制单元基于外部材料的类型确定是否向接收装置无线发送电力。