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：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.

公开(公告)号：US11949253B2

公开(公告)日：2024-04-02

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

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