公开(公告)号：US11489371B2

公开(公告)日：2022-11-01

申请号：US16934511

申请日：2020-07-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Taehyun Woo ,  Yongsik Nam ,  Youngjoon Park ,  Jungsu Park ,  Woojin Jung

IPC: H02J50/80 ,  H02J50/10

Abstract: A wireless charging device in communication with an electronic device is provided. The wireless charging device includes a charging circuit configured to communicate with the electronic device at a first frequency that is included in a frequency band of the electronic device and supple power received from an external power source to the electronic device depending on a communication result at the first frequency, and a control circuit configured to convert the first frequency, based on a response of the electronic device to a first connection signal that is transmitted from the charging circuit to the electronic device.