公开(公告)号：US20200169095A1

公开(公告)日：2020-05-28

申请号：US16774901

申请日：2020-01-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyuk-Choon KWON ,  Nam-Yun Kim ,  Hee-Won Jung ,  Soon-Yeon Jung

IPC: H02J7/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80

Abstract: A method for controlling a wireless power transmitter and a wireless power transmitter are provided. The method includes applying a detection power for detecting a change in a load impedance of the wireless power transmitter; detecting the change in the load impedance of the wireless power transmitter; receiving, from a wireless power receiver, a first signal within a preset time period after detecting the change in the load impedance; determining whether a reception intensity of the first signal is greater than a threshold; and based on determining that the reception intensity of the first signal is less than or equal to the threshold, stopping a communication with the wireless power receiver.