公开(公告)号：US11177666B2

公开(公告)日：2021-11-16

申请号：US16444409

申请日：2019-06-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keumsu Song ,  Kwangseob Kim ,  Kihyun Kim ,  Dongzo Kim ,  Jiwon Kim ,  Jihye Kim ,  Yunjeong Noh ,  Changhak O ,  Hyungkoo Chung ,  Mincheol Ha ,  Jongchul Hong ,  Yongsang Yun

IPC: H01F17/00 ,  H01F38/14 ,  H02J5/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/70 ,  H02J7/02 ,  H04B5/00

Abstract: An electronic device is provided. The electronic device includes a coil unit, a power transmission circuit electrically connected to the coil unit, and a control circuit configured to wirelessly transmit power using the coil unit, and the coil unit may include a first coil. The first coil may include a first layer wound in a first shape by a first number of turns, and a second layer extending from the first layer and wound in a second shape by a second number of turns, and the second layer may be disposed above the first layer to overlap the first layer.

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：US10673285B2

公开(公告)日：2020-06-02

申请号：US16283182

申请日：2019-02-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol Ha ,  Changhak O ,  Kwangseob Kim ,  Dongzo Kim ,  Jiwon Kim ,  Jongchul Hong ,  Kihyun Kim ,  Yunjeong Noh ,  Jaewan Park ,  Hyungkoo Chung ,  Jihye Kim ,  Keumsu Song ,  Yongsang Yun ,  Sangmoo Hwangbo

IPC: H02J50/60 ,  H02J50/80 ,  H02J50/12 ,  H02J7/02 ,  H02J7/00

Abstract: Various embodiments related to electronic devices are set forth herein. According to an embodiment, an electronic device comprises a coil, a power transmitting circuit electrically connected with the coil, a sensing circuit, and a control circuit. The control circuit is configured to wirelessly output, using the power transmitting circuit, a first designated power through the coil to an external electronic device, and identify, using the sensing circuit, first energy detected at the coil due to a foreign object of the electronic device. The control circuit is further configured to, when a magnitude of the energy falls within a first designated range, output, using the power transmitting circuit, a second designated power to the external electronic device, and when the magnitude of the energy falls within a second designated range, abstain from outputting the power to the external electronic device using the power transmitting circuit. Other embodiments are possible as well.

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：US11218016B2

公开(公告)日：2022-01-04

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: H01M10/44 ,  H01M10/46 ,  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：US12237693B2

公开(公告)日：2025-02-25

申请号：US18190675

申请日：2023-03-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongzo Kim ,  Mincheol Ha ,  Taehyeon Yu ,  Kyungmin Lee ,  Kihyun Kim

IPC: H02J50/12 ,  H02J50/80 ,  H02M1/00

Abstract: An example wireless power transmitter may include a transmission coil, a converter configured to output a driving voltage, an inverter configured to output AC power to the transmission coil using the driving voltage, and a controller. The controller may be configured to identify a first voltage at one point within the wireless power transmitter while power is wirelessly transmitted through the transmission coil. The controller may be configured to perform at least one operation for providing a first packet for reduction in modulation depth of a wireless power receiver to the wireless power receiver based on a peak-to-peak value identified to be larger than a first reference value according to the first voltage.