公开(公告)号：US20210036558A1

公开(公告)日：2021-02-04

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.

公开(公告)号：US20200313424A1

公开(公告)日：2020-10-01

申请号：US16829943

申请日：2020-03-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Taehyun WOO ,  Youngjoon PARK ,  Jungsu PARK ,  Woojin JUNG

IPC: H02H9/00 ,  H02J50/12 ,  H02J7/00 ,  H02J50/80

Abstract: An electronic device acting as a power receiving device and a control method. The electronic device includes a battery, a coil, a reception circuit electrically connected to the coil, a charger a current sensing circuit, and at least one control circuit. The charger supplies a specified voltage to a system and controls the state of charge of the battery by using the voltage supplied from the reception circuit. The current sensing circuit is configured to sense an inrush current caused by the system. The at least one control circuit is configured to transmit a first control signal for requesting to increase a transmission voltage supplied from an external electronic device when an inrush current is detected through the current sensing circuit.