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：US20230146752A1

公开(公告)日：2023-05-11

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 ,  H02J50/40 ,  H02J50/70 ,  H02J50/10 ,  H02J50/00

CPC classification number: H01F27/2885 ,  H02J50/402 ,  H02J50/70 ,  H02J50/10 ,  H02J50/005 ,  H01F27/2823

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：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：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：US20230361598A1

公开(公告)日：2023-11-09

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 ,  H02J50/90 ,  H02J50/80 ,  H04W52/02

CPC classification number: H02J50/10 ,  H02J50/90 ,  H02J50/80 ,  H04W52/0251

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：US20230216353A1

公开(公告)日：2023-07-06

申请号：US18119543

申请日：2023-03-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol HA ,  Kihyun KIM ,  Dongzo KIM ,  Jihye KIM ,  Yunjeong NOH ,  Keyic SON ,  Taehyeon YU ,  Kyungmin LEE ,  Hyungkoo CHUNG

IPC: H02J50/40 ,  H02J50/12 ,  H02J50/90 ,  H02M1/00

CPC classification number: H02J50/402 ,  H02J50/12 ,  H02J50/90 ,  H02M1/0003

Abstract: An electronic device includes a plurality of coils, power conversion circuits, demodulation switches, and a processor. The power conversion circuits convert DC power into AC power, and output the AC power to the plurality of coils, respectively. The demodulation switches selectively connect the plurality of coils to ground. The processor selects at least one coil from among the plurality of coils, and controls an on/off state of the demodulation switches to connect or disconnect at least one remaining coil except for the selected at least one coil among the plurality of coils to the ground. The processor controls the power conversion circuits to output the AC power to the selected at least one coil and demodulates a signal of the selected at least one coil to identify information from an external electronic device disposed adjacent to a selected at least one coil based on the demodulation.

公开(公告)号：US20230179028A1

公开(公告)日：2023-06-08

申请号：US18094066

申请日：2023-01-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyungkoo CHUNG ,  Dongzo KIM ,  Mincheol HA ,  Yusu KIM ,  Kihyun KIM ,  Yunjeong NOH ,  Keyic SON ,  Taehyeon YU ,  Kyungmin LEE

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

CPC classification number: H02J50/80 ,  H02J50/60 ,  H02J50/12

Abstract: An electronic device capable of transmitting and receiving wireless power may include a wireless power transfer (WPT) coil and a processor configured to be operatively connected to the WPT coil, wherein the processor may perform control to transmit a first ping signal to an external object through the WPT coil, may identify a waveform of a current or voltage measured while or after transmitting the first ping signal, may obtain a Q factor, based on the identified waveform, may control a power transmission operation by determining that the external object is a foreign object or includes the foreign object and is positioned on a center of the WPT coil when the obtained Q factor is less than a predetermined Q factor, may transmit a second ping signal to the external object through the WPT coil when the obtained Q factor is equal to or greater than the predetermined Q factor, may identify a waveform of a current or voltage while or after transmitting the second ping signal, may identify inductance measured at both ends of the WPT coil, based on the identified waveform, and may control the power transmission operation by determining that the external object is the foreign object or includes the foreign object and is positioned in a surrounding area of the WPT coil, based on the measured inductance.