公开(公告)号：US10404090B2

公开(公告)日：2019-09-03

申请号：US15045774

申请日：2016-02-17

Applicant: WITS Co., Ltd.

Inventor： Sung Uk Lee ,  Tae Sung Kim ,  Si Hyung Kim ,  Hee Sun Han

IPC: H02J5/00 ,  H02J7/02 ,  H02J50/12 ,  H02J50/80

Abstract: A wireless power transmitting method performed in a wireless power transmitting apparatus includes transmitting a long beacon signal via a transmitting coil; determining whether or not a response signal to the long beacon signal has been received at a wireless communicator; determining whether or not a degree of change in a level of impedance of the transmitting coil is within a reference range responsive to the determination that the response signal is not received; and wirelessly transmitting the power responsive to the determination: that the response signal has been received or that the degree of change is within the reference range.