公开(公告)号：US11476710B2

公开(公告)日：2022-10-18

申请号：US16929581

申请日：2020-07-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol Ha ,  Kwangseob Kim ,  Kihyun Kim ,  Dongzo Kim ,  Jihye Kim ,  Yunjeong Noh ,  Changhak O ,  Kyungmin Lee ,  Hyungkoo Chung

IPC: H02J50/60 ,  H02J50/10 ,  H02J50/80 ,  H02J7/02

Abstract: An electronic device according to an embodiment may include: a wireless charging coil; a power transmission circuit configured to be electrically connected to the wireless charging coil; a wireless communication circuit configured to communicate with an external electronic device; and a control circuit. The control circuit may be configured to: transmit power to an external electronic device; obtain data corresponding to power received by the external electronic device in response to the transmitted power using the wireless communication circuit; obtain power loss based on the obtained data; stop transmitting the power to the external electronic device when the power loss exceeds a first threshold; and stop transmitting the power to the external electronic device according to whether an event related the power loss occurs even when the power loss is lower than the first threshold.

公开(公告)号：US11456625B2

公开(公告)日：2022-09-27

申请号：US16936496

申请日：2020-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwangseob Kim ,  Changhak O ,  Kihyun Kim ,  Dongzo Kim ,  Jihye Kim ,  Yunjeong Noh ,  Kyungmin Lee ,  Hyungkoo Chung ,  Mincheol Ha

IPC: H02J50/60 ,  H02J50/80 ,  H02J50/10

Abstract: According to certain embodiments, a power transmission device comprises an induction circuit configured to transmit a wireless power signal through a charging pad and receive a signal from an external device; and at least one processor operatively connected to the induction circuit, wherein the processor is configured to: enter a wireless charging protection mode for wireless charging of the external device, measure a current value of the wireless power signal, and release the wireless charging protection mode when the packet information is not included in the signal transmitted from the external device and the measured current value or variation of the current value exceeds a threshold value.

公开(公告)号：US11451074B2

公开(公告)日：2022-09-20

申请号：US16880260

申请日：2020-05-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kihyun Kim ,  Kyungha Koo ,  Wooram Lee ,  Changhyung Lee ,  Jihye Kim ,  Jihong Kim ,  Yunjeong Noh ,  Seho Park ,  Kumjong Sun ,  Ju-Hyang Lee ,  Mincheol Ha ,  Sangmoo Hwangbo

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

Abstract: An electronic device is provided. The electronic device includes a housing, a wireless charging coil disposed inside the housing, a fan disposed inside the housing and in proximity to the coil, a temperature sensor disposed inside the housing and in proximity to the coil, a wireless charging circuit having the coil and configured to transmit power wirelessly to an external device via the coil, and a control circuit electrically connected to the fan, the temperature sensor, and the wireless charging circuit. The control circuit may be configured to receive a signal from the external device, receive data related to a temperature of the coil from the temperature sensor, and control the fan at least partially on the basis of at least one of the signal and the data.

公开(公告)号：US11115082B2

公开(公告)日：2021-09-07

申请号：US16315940

申请日：2017-03-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ju-Hyang Lee ,  Keumsu Song ,  Dongzo Kim ,  Yusu Kim ,  Seho Park ,  Jung-Oh Sung ,  Mincheol Ha ,  Changjong Son ,  Seung-Nyun Kim ,  Yong Sang Yun

IPC: H04B5/00 ,  H02J50/12 ,  H02H9/04 ,  H02J50/70 ,  H02J50/80 ,  H02J50/90 ,  H02J50/10 ,  H01Q1/22 ,  H01Q1/24

Abstract: According to one embodiment of the present invention, an electronic apparatus can comprises: at least one antenna; a first circuit for wirelessly receiving or transmitting power by using at least one part of the at least one antenna; a second circuit for performing at least one communication by using at least one part of the at least one antenna; a first electrical path for connecting the at least one antenna to the first circuit; a second electrical path for connecting the at least one antenna to the second circuit; a third electrical path for connecting a point on the first electrical path to a point on the second electrical path; and at least one passive element or active element connected to at least one of the first electrical path, the second electrical path, and the third electrical path.

公开(公告)号：US12301013B2

公开(公告)日：2025-05-13

申请号：US18351848

申请日：2023-07-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keyic Son ,  Kihyun Kim ,  Dongzo Kim ,  Jihye Kim ,  Yunjeong Noh ,  Taehyeon Yu ,  Kyungmin Lee ,  Hyungkoo Chung ,  Mincheol Ha

IPC: H02J50/10 ,  H02J50/80 ,  H02J50/90 ,  H04W52/02

Abstract: An electronic device is provided. The electronic device includes a wireless transmission circuit for transmitting power to a power reception device, and a first processor. When entering a power reduction mode, with respect to a first voltage and a first current being output from the wireless transmission circuit, the first processor includes, in case that the power reception device is in an align state, lower a voltage of the wireless transmission circuit to a second voltage lower than the first voltage and lower a current flowing in the electronic device to a second current lower than the first current, and, in case that the power reception device is in a misalign state, lower a voltage of the electronic device to a third voltage lower than the second voltage and lower a current flowing in the wireless communication circuit to a third current lower than the second current.

公开(公告)号：US12107432B2

公开(公告)日：2024-10-01

申请号：US17880830

申请日：2022-08-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol Ha ,  Dongzo Kim ,  Kyungmin Lee ,  Kihyun Kim ,  Yunjeong Noh ,  Keyic Son ,  Taehyeon Yu ,  Hyungkoo Chung

IPC: H02J50/10 ,  H02J50/40 ,  H02J50/80

CPC classification number: H02J50/10 ,  H02J50/402 ,  H02J50/80

Abstract: Disclosed is a method for controlling an electronic device electrically couplable to an external electronic device through a connector and capable of transmitting/receiving wireless power, the method including: an operation of identifying electrical connection to the external electronic device; an operation of receiving power from the external electronic device through a short-range communication module; an operation of controlling a mode switch module based on the received power and transmitting a signal regarding a power transmission mode to the external electronic device through the connector; an operation of receiving direct-current power from the external electronic device through the connector after transmitting the signal regarding the power transmission mode; and an operation of generating an electromagnetic field for wireless power transmission through the wireless power transmission/reception module, based on the received direct-current power.

公开(公告)号：US12062924B2

公开(公告)日：2024-08-13

申请号：US18088623

申请日：2022-12-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Mincheol Ha ,  Dongzo Kim ,  Hyungkoo Chung

IPC: H02J50/12 ,  H02J50/50 ,  H02J50/80 ,  H02J50/90

CPC classification number: H02J50/12 ,  H02J50/502 ,  H02J50/80 ,  H02J50/90

Abstract: An electronic device according to various embodiments include a sensor, a first magnetic element which can be rotated to have a polarity of a first pole or a second pole in a first direction, and a processor. When the first magnetic element is aligned in the first direction by a magnetic force generated due to the approach of a second magnetic element included in an external electronic device, the processor is configured to identify the strength of the magnetic force and the polarity of the first magnetic element corresponding to the magnetic force by means of the sensor, select any one of a plurality of power transmission methods on the basis of the strength of the magnetic force and the polarity, and transmit power to the external electronic device wirelessly on the basis of the power transmission method.

公开(公告)号：US20220247239A1

公开(公告)日：2022-08-04

申请号：US17578712

申请日：2022-01-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyungkoo Chung ,  Kihyun Kim ,  Dongzo Kim ,  Jihye Kim ,  Yunjeong Noh ,  Keyic Son ,  Taehyeon Yu ,  Kyungmin Lee ,  Mincheol Ha

IPC: H02J50/80 ,  H02J50/10 ,  H02J50/40 ,  H02J50/90

Abstract: A power transmission device is provided for transmitting power. The power transmission device includes a power transmitter including a plurality of coils, and a processor configured to wirelessly transmit power to a power reception device through at least one coil among the plurality of coils, identify a condition indicating a state in which a coil to transmit power related to charging of the power reception device is to be reconfigured, transmit a CSP to the power reception device, in response to identifying the condition, based on the predetermined condition, identify an SSP of at least one other coil adjacent to at least one coil, and wirelessly transmit power to the power reception device through a coil having a largest SSP among an SSP of the at least one coil and the identified SSP of the at least one other coil.

公开(公告)号：US11289951B2

公开(公告)日：2022-03-29

申请号：US16711262

申请日：2019-12-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol Ha ,  Dongzo Kim ,  Kwangseob Kim ,  Kihyun Kim ,  Jihye Kim ,  Yunjeong Noh ,  Jungsu Park ,  Kyungmin Lee ,  Woojin Jung ,  Yongsang Yun

IPC: H02J50/60 ,  H02J50/10 ,  H02J7/00

Abstract: An electronic device including a coil, a power transmission circuit electrically connected with the coil, a detection circuit, and a control circuit. The control circuit of the electronic device configured to wirelessly output a first signal for identifying an access of a foreign object by first period intervals through the coil using the power transmission circuit, identify a change of the first signal using the detection circuit, wirelessly output the first signal by the first period intervals in response to a detection value of the changed first signal being less than or equal to a first threshold value, and wirelessly output the first signal by a second period intervals longer than the first period intervals in response to the detection value of the changed first signal exceeding the first threshold value.

公开(公告)号：US10938239B2

公开(公告)日：2021-03-02

申请号：US16371690

申请日：2019-04-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kihyun Kim ,  Kyungha Koo ,  Wooram Lee ,  Changhyung Lee ,  Jihye Kim ,  Jihong Kim ,  Yunjeong Noh ,  Seho Park ,  Kumjong Sun ,  Ju-Hyang Lee ,  Mincheol Ha ,  Sangmoo Hwangbo

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

Abstract: An electronic device is provided. The electronic device includes a housing, a wireless charging coil disposed inside the housing, a fan disposed inside the housing and in proximity to the coil, a temperature sensor disposed inside the housing and in proximity to the coil, a wireless charging circuit having the coil and configured to transmit power wirelessly to an external device via the coil, and a control circuit electrically connected to the fan, the temperature sensor, and the wireless charging circuit. The control circuit may be configured to receive a signal from the external device, receive data related to a temperature of the coil from the temperature sensor, and control the fan at least partially on the basis of at least one of the signal and the data.