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：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：US12206259B2

公开(公告)日：2025-01-21

申请号：US17578007

申请日：2022-01-18

Applicant: Samsung Electronics Co., Ltd.

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

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

Abstract: According to various embodiments, there may be provided an electronic device comprising a coil, an inverter configured to provide power to the coil, a power providing circuit, a communication circuit, and a control circuit, wherein the control circuit is configured to control the power providing circuit to apply a first voltage to an input terminal of the inverter, the inverter outputting a first magnitude of power based on the application of the first voltage, control the power providing circuit to apply a second voltage lower than the first voltage to the input terminal of the inverter, based on the application of the first voltage being maintained for a specific time, identify, through the communication circuit, a first control error packet from the wireless power receiving device, while applying the second voltage, and identify a first value included in the first control error packet.

公开(公告)号：US12159739B2

公开(公告)日：2024-12-03

申请号：US18153049

申请日：2023-01-11

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H01F27/28 ,  H01F27/36 ,  H02J50/00 ,  H02J50/10 ,  H02J50/40 ,  H02J50/70

Abstract: A wireless power transmission apparatus is provided. The wireless power transmission apparatus includes a first coil including a first conductive wire area formed of an arrangement of conductive wires, and a first opening area surrounded by the first conductive wire area, a second coil including a second conductive wire area formed of an arrangement of conductive wires, and a second opening area surrounded by the second conductive wire area, a first overlapping area formed by overlapping a portion of the first conductive wire area with a portion of the second opening area, and a first shielding member disposed on at least a portion of the first overlapping area, wherein the first shielding member may be configured to at least partially block an electromagnetic field generated by the second coil interfering in the first conductive wire area.

公开(公告)号：US11431206B2

公开(公告)日：2022-08-30

申请号：US17173000

申请日：2021-02-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol Ha ,  Dongzo Kim ,  Hyungkoo Chung

IPC: H02J50/10 ,  H02J50/80 ,  H04W4/80

Abstract: An electronic device includes a coil, and at least one control circuit electrically connected to the coil. The control circuit is configured to transmit power to an external device via the coil by using a first frequency belonging to a first frequency band, receive a packet related with wireless charging from the external device via the coil, in response to having failed to receive the packet within a first reference time, change at least one of an amplitude of the power transmitted or the first frequency used for the transmitting of the power, and to transmit power to the external device via the coil on the basis of the at least one of the changed transmit power or the changed frequency.

公开(公告)号：US11159040B2

公开(公告)日：2021-10-26

申请号：US16594575

申请日：2019-10-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Changhak O ,  Kwangseob Kim ,  Dongzo Kim ,  Mincheol Ha ,  Yongsang Yun

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/80 ,  H02J50/70 ,  H02M7/5387

Abstract: A power control method for wireless charging and an electronic device therefor are provided. The electronic device, includes a coil, an inverter including gate inputs which are electrically connected to the coil, and at least one processor. The at least one processor is configured to control the gate inputs of the inverter in an anti symmetric manner to generate an output power, receive an output power reduction request from an external electronic device, based on receiving the output power reduction request, determine whether a ratio of ON-operations to OFF-operation of the gate inputs of the inverter is less than or equal to a designated ratio, and based on the ratio of ON-operations to OFF-operations of the gate inputs of the inverter being less than or equal to the designated ratio, modulate a phase of a voltage input into the gate inputs of the inverter to generate an output power.

公开(公告)号：US12136835B2

公开(公告)日：2024-11-05

申请号：US18178545

申请日：2023-03-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H02J50/80 ,  H01F38/14 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90

Abstract: An electronic device includes: coils; power conversion circuits configured to receive direct current (DC) power, convert the DC power into alternating current (AC) power, and output the AC power to the coils; and a processor. The processor is configured to: apply to the coils a ping signal of which a ping power section is repeated periodically and which has a plurality of ping power levels increasing in phases; confirm an SSP signal responding to the ping signal; and perform wireless power transmission by the coils on the basis of a ping power level in which the SSP signal is confirmed from among the plurality of ping power levels.

公开(公告)号：US11482886B2

公开(公告)日：2022-10-25

申请号：US16784432

申请日：2020-02-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yunjeong Noh ,  Dongzo Kim ,  Mincheol Ha ,  Kwangseob Kim ,  Kihyun Kim ,  Jihye Kim ,  Kyungmin Lee ,  Wooram Lee ,  Yongsang Yun

IPC: H02J7/00 ,  H02J50/12 ,  H02J7/02

Abstract: One or more disclosed embodiments relate to a wireless charging transmitter and a wireless power transfer method. The wireless charging transmitter includes a first charging pad including a first wireless power circuit, a second charging pad including a second wireless power circuit, and a controller configured to, in response to detection of a first electronic device being placed on the first charging pad, transfer power at a first designated wireless power level via the first wireless power circuit, in response to detection of a second electronic device being placed on the second charging pad, transmit a first command for decreasing power transferred to the first electronic device, and transfer, upon receipt of a first request for power at a second designated wireless power level from the first electronic device in response to the first command, the power at the second designated wireless power level via the first and second wireless power circuits. The disclosure may further include other various embodiments.

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.