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：US20210143683A1

公开(公告)日：2021-05-13

申请号：US17057234

申请日：2019-07-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol HA ,  Kwangseob KIM ,  Kihyun KIM ,  Dongzo KIM ,  Jiwon KIM ,  Jihye KIM ,  Yunjeong NOH ,  Keumsu SONG ,  Changhak O ,  Kyungmin LEE ,  Hyungkoo CHUNG ,  Jongchul HONG ,  Yongsang YUN

IPC: H02J50/40 ,  H02J50/12 ,  H02J50/80 ,  H02J7/00

Abstract: Various embodiments relating to an electronic device are disclosed, and according to an embodiment, the electronic device may comprise: a plurality of coils; a first power generation circuit electrically connected to at least one of the plurality of coils; a second power generation circuit electrically connected to at least one of the plurality of coils; and a control circuit, wherein when the approach of a second external electronic device is detected while first power is provided to a first external electronic device by using a first frequency via the first power generation circuit, the control circuit allows the frequency of the second power generation circuit to be configured to a second frequency different from a first frequency in order to provide second power to the second external electronic device. Other embodiments may be possible.

公开(公告)号：US20200266675A1

公开(公告)日：2020-08-20

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 ,  H02J7/00 ,  H02J50/10

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.

公开(公告)号：US20200036227A1

公开(公告)日：2020-01-30

申请号：US16447113

申请日：2019-06-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwangseob KIM ,  Keumsu SONG ,  Changhak O ,  Dongzo KIM ,  Jihye KIM ,  Mincheol HA ,  Kihyun KIM ,  Jiwon KIM ,  Yunjeong NOH ,  Kyungmin LEE ,  Hyungkoo CHUNG ,  Jongchul HONG ,  Yongsang YUN

IPC: H02J50/10 ,  H01F27/30 ,  H01F27/28

Abstract: An electronic device including a wireless charging coils, and an operating method thereof are provided. The electronic device includes a housing including a concave portion couplable to a protrusion of one or more external electronic devices, a first coil stored inside the housing, a second coil stored inside the housing, and disposed between the first coil and the concave portion, a power transmission circuit including a first connecting terminal electrically coupled to the first coil and a second connecting terminal electrically coupled to the second coil, and a control circuit. The control circuit configured to check a data packet received from the external electronic device which is in proximity to the electronic device, control to transmit first designated power to the external electronic device through the first coil wirelessly, and second designated power to the external electronic device through the second coil wirelessly by using the power transmission circuit.

公开(公告)号：US20180331726A1

公开(公告)日：2018-11-15

申请号：US15777506

申请日：2016-11-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol HA ,  Seho PARK ,  Jung-Oh SUNG ,  Ju-Hyang LEE ,  Kwangseob KIM ,  Dongzo KIM ,  Yusu KIM ,  Keumsu SONG ,  Jae-Woong JEON

IPC: H04B5/00 ,  H02J50/20 ,  H02J7/02 ,  H01F38/14 ,  H02J50/12 ,  H02J50/80 ,  H02J50/70

CPC classification number: H04B5/0081 ,  H01F5/003 ,  H01F27/365 ,  H01F38/14 ,  H02J7/025 ,  H02J50/12 ,  H02J50/20 ,  H02J50/40 ,  H02J50/70 ,  H02J50/80 ,  H04B5/0031 ,  H04B5/0037

Abstract: An electronic device and an operating method thereof according to various embodiments are capable of releasing a connection between a first antenna and a first magnetic field module, receiving power wirelessly through the first antenna by a second magnetic field module coupled to the first antenna, coupling the first antenna and the first magnetic field module, and performing first short range communication through the first antenna by the first magnetic field module.

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：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.