公开(公告)号：US11916425B2

公开(公告)日：2024-02-27

申请号：US16738477

申请日：2020-01-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngmi Ha ,  Hyunjun Oh ,  Jungmin Lee ,  Kuchul Jung ,  Sungjoon Cho ,  Hansol Choi ,  Kyounghoon Kim ,  Seongil Lee

IPC: H02J7/00

CPC classification number: H02J7/007182 ,  H02J7/00714 ,  H02J7/0048

Abstract: An electronic device is provided. The electronic device includes a housing, a battery disposed inside the housing, a power management module for controlling charging of the battery, and at least one processor operationally connected with the battery and the power management module. The at least one processor is provided to direct a plurality of charging intervals while charging the battery, each of the plurality of charging intervals having a target voltage, to alternately charge the battery in a first mode and in a second mode through the power management module, wherein a charging current flowing into the battery is uniformly maintained in the first mode and a voltage of the battery is uniformly maintained in the second mode, and to switch the first mode to the second mode when the voltage of the battery reaches the target voltage in the first mode.

公开(公告)号：US11387687B2

公开(公告)日：2022-07-12

申请号：US16782535

申请日：2020-02-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wooram Lee ,  Kangjun Ko ,  Kwangseob Kim ,  Minji Chae ,  Youngmi Ha ,  Dongzo Kim ,  Mincheol Ha

IPC: H02J50/80 ,  H02J50/10 ,  H02J7/00

Abstract: An electronic device is includes battery; coil; wireless charging circuit electrically connected to coil; power management module configured to control charge state of battery by using power supplied from receiving circuit; and processor operatively connected to wireless charging circuit and power management module, wherein processor is configured to request configuration information for performing wireless charging from external device through the wireless charging circuit; determine whether wireless charging is possible, based on a response to the request for configuration information; when the wireless charging is possible, request encrypted authentication information from the external device so as to perform authentication with respect to the external device; when the external device is an unauthenticated device, request the external device to transmit a first predetermined power; and when the external device is an authenticated device, request the external device to transmit a second predetermined power that is higher than the first predetermined power.

公开(公告)号：US11303140B2

公开(公告)日：2022-04-12

申请号：US16495942

申请日：2018-02-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngmi Ha ,  Jaemu Ha ,  Hansol Choi ,  Byungwook Kim ,  Kwanbae Son ,  Sungjoon Cho

IPC: H02J7/00

Abstract: Various embodiments of the disclosure relate to an apparatus and method for preventing overcharging of a battery. In this case, the electronic device includes a battery, at least one processor, and a memory electrically coupled to the at least one processor. The memory may store instructions, when executed, allowing the at least one processor to set a charge safety time corresponding to an external device upon connection with the external power device, charge the battery, based at least in part on power of the external power device, and update the charge safety time, based on a change of at least one of charging current and discharging current of the battery. Other embodiments may also be possible.

公开(公告)号：US20210036539A1

公开(公告)日：2021-02-04

申请号：US16916787

申请日：2020-06-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngmi Ha ,  Hansol Choi ,  Dongzo Kim ,  Byungwook Kim ,  Jaeho Song ,  Dongik Sin ,  Wooram Lee ,  Sungjoon Cho

IPC: H02J7/04 ,  H02J50/10

Abstract: An electronic device and method are provided for frequency interference cancellation. The electronic device includes a coil, a wireless power receive circuit, a charging circuit, a display, and a processor. The processor may be configured to perform wireless charging with power wirelessly received from a wireless charger, change, via the charging circuit, a charging current of the electronic device from an initial current level to a first current level, based on the display being switched on during wireless charging, change, via the wireless power receive circuit, a charging voltage of the electronic device from an initial voltage level to a first voltage level, transmit, via the coil, a packet for changing a charging voltage of the wireless charger, change, via the wireless power receive circuit, the charging voltage of the electronic device to a second voltage level upon transmission of the packet, and change the charging current to the initial current level.

公开(公告)号：US10855099B2

公开(公告)日：2020-12-01

申请号：US16653469

申请日：2019-10-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yusu Kim ,  Kyoungwon Kim ,  Kyounghoon Kim ,  Byungwook Kim ,  Jeongmin Moon ,  Kyungmin Park ,  Jungmin Lee ,  Juhyang Lee ,  Kuchul Jung ,  Sungjoon Cho ,  Chihyun Cho ,  Hansol Choi ,  Youngmi Ha ,  Yongsang Yun

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/10 ,  H02J7/34 ,  H02J50/80

Abstract: According to various embodiments, an electronic device comprises a battery, a wireless interface including a coil and configured to wirelessly transmit electric power from the battery via the coil, and at least one processor configured to: perform a wireless charging function of wirelessly transmitting electric power to an external device via the wireless interface, while neither the electronic device nor the external device is being supplied with electric power from an external power source via a wire, and based on identifying that the external device starts being supplied with electric power from an external power source via a wire while performing the wireless charging function, stop performing the wireless charging function of wirelessly transmitting electric power to the external device.