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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
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.
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公开(公告)号：US20210036550A1
公开(公告)日：2021-02-04
申请号：US16929581
申请日：2020-07-15
Applicant: Samsung Electronics Co., Ltd.
Inventor： Mincheol HA , Kwangseob KIM , Kihyun KIM , Dongzo KIM , Jihye KIM , Yunjeong NOH , Changhak O , Kyungmin LEE , Hyungkoo CHUNG
Abstract: An electronic device according to an embodiment may include: a wireless charging coil; a power transmission circuit configured to be electrically connected to the wireless charging coil; a wireless communication circuit configured to communicate with an external electronic device; and a control circuit. The control circuit may be configured to: transmit power to an external electronic device; obtain data corresponding to power received by the external electronic device in response to the transmitted power using the wireless communication circuit; obtain power loss based on the obtained data; stop transmitting the power to the external electronic device when the power loss exceeds a first threshold; and stop transmitting the power to the external electronic device according to whether an event related the power loss occurs even when the power loss is lower than the first threshold.
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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
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.
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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
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.
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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
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.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20200251928A1
公开(公告)日：2020-08-06
申请号：US16640017
申请日：2018-04-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Mincheol HA , Dongzo KIM , Ji-Won KIM , Jae-Wan PARK , Chang-Hak O , Jongchul HONG , Yong Sang YUN
Abstract: According to various embodiments, provided is an electronic device, which comprises a housing and a relay circuit located inside the housing and is capable of receiving and/or retransmitting an electromagnetic field of an external electronic device, wherein the relay circuit is configured to form a resonant frequency higher than that of an operating frequency range of the electromagnetic field transmitted by the external electronic device. Additional various embodiments are possible.
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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
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.
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8.发明公开公开(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
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.
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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
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.
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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
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.
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