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公开(公告)号：US12301013B2
公开(公告)日：2025-05-13
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
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：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
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.
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公开(公告)号：US12062924B2
公开(公告)日：2024-08-13
申请号：US18088623
申请日：2022-12-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Mincheol Ha , Dongzo Kim , Hyungkoo Chung
CPC classification number: H02J50/12 , H02J50/502 , H02J50/80 , H02J50/90
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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14.发明申请公开(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
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.
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Patent Agency Ranking
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
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：US11831169B2
公开(公告)日：2023-11-28
申请号：US17430907
申请日：2020-02-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Changhak O , Hyungkoo Chung , Mincheol Ha , Yongsang Yun
CPC classification number: H02J50/10 , H02J7/00712 , H02J50/80
Abstract: Disclosed is a power transmission device for wirelessly supplying power to an external electronic device, the power transmission device comprising: a coil configured to transmit a wireless signal to the electronic device based on a transmission power; a power generation circuit configured to supply, to the coil, the transmission power generated based on an input voltage; and a control circuit electrically connected to the coil and the power generation circuit, wherein the control circuit is configured: to receive information about charging power from the electronic device; to determine whether a voltage drop event related to a drop of the internal voltage of the electronic device has occurred, based on the difference between the transmission power and the charging power; and to regulate the level of the input voltage based on results obtained from the determination.
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公开(公告)号：US11177666B2
公开(公告)日：2021-11-16
申请号：US16444409
申请日：2019-06-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Keumsu Song , Kwangseob Kim , Kihyun Kim , Dongzo Kim , Jiwon Kim , Jihye Kim , Yunjeong Noh , Changhak O , Hyungkoo Chung , Mincheol Ha , Jongchul Hong , Yongsang Yun
Abstract: An electronic device is provided. The electronic device includes a coil unit, a power transmission circuit electrically connected to the coil unit, and a control circuit configured to wirelessly transmit power using the coil unit, and the coil unit may include a first coil. The first coil may include a first layer wound in a first shape by a first number of turns, and a second layer extending from the first layer and wound in a second shape by a second number of turns, and the second layer may be disposed above the first layer to overlap the first layer.
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公开(公告)号：US10742075B2
公开(公告)日：2020-08-11
申请号：US15823889
申请日：2017-11-28
Applicant: Samsung Electronics Co., Ltd.
Inventor： Wooram Lee , Kyoungwon Kim , Seho Park , Chang-Hak O , Kyeongjun Kim , Kihyun Kim , Yunjeong Noh , Jae-Wan Park , Hyungkoo Chung
Abstract: An electronic device according to one embodiment of the present disclosure includes a conductive coil, a power generation circuit, and one or more processors operatively connected to the power generation circuit and may be configured to: compare an amount of transmission power to be supplied to a power reception device with designated threshold power amount, determine a designated frequency to be a frequency of a control signal for controlling the power generation circuit when the amount of transmission power is equal to or less than the designated threshold power amount, determine a phase of the control signal based at least in part on the amount of transmission power and/or the designated frequency when the designated frequency is determined to be the frequency of the control signal, transmit the control signal having the designated frequency and the phase to the power generation circuit to generate, based at least in part on the control signal, transmission power corresponding to the amount of transmission power, and supply the transmission power generated by the power generation circuit to the power reception device wirelessly via the conductive coil.
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19.发明授权公开(公告)号：US10673285B2
公开(公告)日：2020-06-02
申请号：US16283182
申请日：2019-02-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Mincheol Ha , Changhak O , Kwangseob Kim , Dongzo Kim , Jiwon Kim , Jongchul Hong , Kihyun Kim , Yunjeong Noh , Jaewan Park , Hyungkoo Chung , Jihye Kim , Keumsu Song , Yongsang Yun , Sangmoo Hwangbo
Abstract: Various embodiments related to electronic devices are set forth herein. According to an embodiment, an electronic device comprises a coil, a power transmitting circuit electrically connected with the coil, a sensing circuit, and a control circuit. The control circuit is configured to wirelessly output, using the power transmitting circuit, a first designated power through the coil to an external electronic device, and identify, using the sensing circuit, first energy detected at the coil due to a foreign object of the electronic device. The control circuit is further configured to, when a magnitude of the energy falls within a first designated range, output, using the power transmitting circuit, a second designated power to the external electronic device, and when the magnitude of the energy falls within a second designated range, abstain from outputting the power to the external electronic device using the power transmitting circuit. Other embodiments are possible as well.
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