公开(公告)号：US20170271920A1

公开(公告)日：2017-09-21

申请号：US15413916

申请日：2017-01-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yusu KIM ,  Kwangseob KIM ,  Dongzo KIM ,  Seho PARK ,  Hanseok PARK ,  Keumsu SONG ,  Ju-Hyang LEE ,  Mincheol HA ,  Seung-Nyun KIM ,  Yong Sang YUN ,  Chi-Hyun CHO

IPC: H02J50/10 ,  H02H7/20 ,  H02J7/02

CPC classification number: H02J50/10 ,  H02H7/20 ,  H02J7/025 ,  H02J7/345 ,  H02J50/12

Abstract: An electronic apparatus and its operating method are provided. The electronic apparatus and its operating method can be configured to drive the capacitor, to detect the received power, and stop driving the capacitor.

公开(公告)号：US20240162748A1

公开(公告)日：2024-05-16

申请号：US18418574

申请日：2024-01-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol HA ,  Dongzo KIM

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

CPC classification number: H02J50/005 ,  H02J7/00034 ,  H02J7/0044 ,  H02J7/0049 ,  H02J7/007188 ,  H02J50/12 ,  H02J50/60 ,  H02J50/80

Abstract: A power relay device may be included on/in a cover which covers a portable power reception device, and may comprise: a coil; a power reception circuit configured to rectify a power signal received from a power transmission device through the coil; a wireless communication circuit configured to be driven using the power signal received from the power reception circuit and to communicate with the power transmission device and the power reception device using the coil; and a relay control circuit configured to be driven using the power signal received from the power reception circuit and electrically connected to the power reception circuit and the wireless communication circuit. The relay control circuit may be configured to: receive a first received power value indicating power consumed by the power reception device from the wireless communication circuit; and based on the first received power value being received, transmit a second received power value indicating power consumed by the power relay device to the power transmission device using the wireless communication circuit.

公开(公告)号：US20230208208A1

公开(公告)日：2023-06-29

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 ,  H02J50/40 ,  H02J50/12 ,  H02J50/90 ,  H01F38/14

CPC classification number: H02J50/80 ,  H02J50/402 ,  H02J50/12 ,  H02J50/90 ,  H01F38/14

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：US20230126676A1

公开(公告)日：2023-04-27

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 ,  H02J50/90 ,  H02J50/50 ,  H02J50/80

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：US20230042780A1

公开(公告)日：2023-02-09

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 ,  H02J50/80 ,  H02J50/40

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：US20200266670A1

公开(公告)日：2020-08-20

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 ,  H02J7/00 ,  H02J50/10

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：US20230412001A1

公开(公告)日：2023-12-21

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

CPC classification number: H02J50/12 ,  H02J50/80 ,  H02M1/0077

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：US20230402853A1

公开(公告)日：2023-12-14

申请号：US18173432

申请日：2023-02-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyungmin LEE ,  Dongzo KIM ,  Mincheol HA ,  Yunjeong NOH ,  Keyic SON

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

CPC classification number: H02J7/00045 ,  H02J50/12 ,  H02J50/80

Abstract: A power supply device is provided. The power supply device includes an authentication circuit, power supply circuits, and a control circuit connected to the authentication circuit and the power supply circuits. Each of the power supply circuits includes a coil and a communication circuit and may be configured to transmit a power signal to one power reception device through the coil. The control circuit performs an authentication operation for fast charging of a plurality of power reception devices without a collision by using the authentication circuit and the power supply circuits.

公开(公告)号：US20210249913A1

公开(公告)日：2021-08-12

申请号：US17173000

申请日：2021-02-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol HA ,  Dongzo KIM ,  Hyungkoo CHUNG

IPC: H02J50/80 ,  H02J50/10 ,  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：US20210036554A1

公开(公告)日：2021-02-04

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 ,  H02J50/10 ,  H02J50/80

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.