公开(公告)号：US20220278552A1

公开(公告)日：2022-09-01

申请号：US17745221

申请日：2022-05-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seho PARK ,  Kyoungwon KIM ,  Yusu KIM ,  Yongsang YUN ,  Chihyun CHO

IPC: H02J50/10 ,  H04B5/00 ,  H04B1/04 ,  H04L27/04 ,  H04B1/16 ,  H04L27/12

Abstract: Electronic device and method for driving electronic device. The electronic device includes battery, power management integrated circuit (PMIC) configured to control charging status of battery, coil, wireless power circuit electrically connected to coil, communication circuit electrically connected to coil, and processor, wherein processor is configured to, when the wireless power circuit is in a transmission (Tx) mode, transmit a wireless power signal through the coil by using the wireless power circuit, and transmit a signal obtained by frequency shift keying (FSK)-modulating a transmission device parameter by using the communication circuit, to an external electronic device through the coil, and when the wireless power circuit is in a reception (Rx) mode, receive wireless power by using the wireless power circuit to charge the battery, and transmit a signal obtained by amplitude shift keying (ASK)-modulating a reception device parameter by using the communication circuit, to the external electronic device through the coil.

公开(公告)号：US20210399591A1

公开(公告)日：2021-12-23

申请号：US17288624

申请日：2019-10-25

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H02J50/80 ,  H04B5/00 ,  H04L27/02 ,  H02J50/12

Abstract: An electronic device according to various embodiments may be configured to cause a control circuit to: control a first switch, a second switch, or a combination of the first switch and the second switch, in order to electrically connect a ground terminal to a first capacitor, a second capacitor, or a combination of the first capacitor and the second capacitor, while the electronic device operates in a first mode for providing power to a first external electronic device; control the first switch and the second switch in order to electrically disconnect the first capacitor and the second capacitor from the ground terminal, and control the third switch in order to control a path of an electrical signal which passes through the fourth capacitor, while the electronic device operates in a second mode for acquiring power from a second external electronic device.

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.

公开(公告)号：US20180152058A1

公开(公告)日：2018-05-31

申请号：US15823889

申请日：2017-11-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wooram LEE ,  Kyoungwon KIM ,  Seho PARK ,  Chang-Hak O ,  Kyeongjun KIM ,  Kihyun KIM ,  Yunjeong NOH ,  Jae-Wan PARK ,  Hyungkoo CHUNG

IPC: H02J50/70 ,  H02J50/80 ,  H02J50/12 ,  H02J7/02

CPC classification number: H02J50/70 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80 ,  H02M7/5387

Abstract: An electronic device according to one embodiment of the present disclosure includes a conductive coil, a power generation circuit, and one or more processors operatively connected to the power generation circuit and may be configured to: compare an amount of transmission power to be supplied to a power reception device with designated threshold power amount, determine a designated frequency to be a frequency of a control signal for controlling the power generation circuit when the amount of transmission power is equal to or less than the designated threshold power amount, determine a phase of the control signal based at least in part on the amount of transmission power and/or the designated frequency when the designated frequency is determined to be the frequency of the control signal, transmit the control signal having the designated frequency and the phase to the power generation circuit to generate, based at least in part on the control signal, transmission power corresponding to the amount of transmission power, and supply the transmission power generated by the power generation circuit to the power reception device wirelessly via the conductive coil.