公开(公告)号：US20210194285A1

公开(公告)日：2021-06-24

申请号：US16756774

申请日：2018-08-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seho PARK ,  Yusu KIM ,  Juhyang LEE ,  Yongsang YUN ,  Chihyun CHO

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

Abstract: Provided in various embodiments are an electronic device for receiving wireless power and an operating method of the electronic device, the electronic device comprising: a power receiving circuit including a wireless coil for receiving power from an external electronic device and a rectifying circuit for converting, into a direct current signal, an electric signal received from the external electronic device; a sensing circuit for determining a state of the electronic device by checking a signal applied to the wireless power receiving circuit by means of the external electronic device; and a processor, wherein the processor can be set so as to receive an output signal of the sensing circuit and control, on the basis of the output signal, a gate voltage of at least one field effect transistor (FET) element connected to an input terminal of the rectifying circuit. Other various embodiments are possible.

公开(公告)号：US20200185979A1

公开(公告)日：2020-06-11

申请号：US16705357

申请日：2019-12-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungmin PARK ,  Kyoungwon KIM ,  Yusu KIM ,  Wooram LEE ,  Juhyang LEE ,  Byungyeol CHOI

IPC: H02J50/90 ,  H02J50/10 ,  H02J50/80 ,  H02J7/02

Abstract: Disclosed is an electronic device. A wireless power transferring device includes a first interface comprising interface circuitry, a conversion circuit, a coil, and a control circuit. The control circuit is configured to control the device to communicate with the power supply device to identify maximum supply power of the power supply device and set maximum transfer power to the maximum supply power or less based on the power supply device being connected to the first interface, to generate the transfer power based on power supplied from the power supply device using the conversion circuit, to transfer the generated transfer power to a wireless power receiving device using the coil, to determine whether the request is for power adjustment exceeding the maximum transfer power based on receiving a request for power adjustment from the wireless power receiving device, to adjust the transfer power using the conversion circuit in response to the request based on the request not being for power adjustment exceeding the maximum transfer power, and to ignore the request to adjust the transfer power based on the request for power adjustment exceeding the maximum transfer power.