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1.发明公开
公开(公告)号：EP4432517A1
公开(公告)日：2024-09-18
申请号：EP22906085.0
申请日：2022-10-31
发明人： QIN, Haijun , WU, Jian , LIU, Weirong , CHENG, Yuan , SHI, Lei
摘要： This application provides a power supply end, a wireless power supply system, a power supply method, and a computer storage medium, to improve wireless power supply efficiency. The power supply end includes a transceiver and a plurality of radiation circuits. The transceiver is configured to: generate a charging signal including an electromagnetic wave of at least one frequency band, and separately provide the charging signal for the plurality of radiation circuits. Each of the plurality of radiation circuits can transmit an electromagnetic wave of one or more target frequency bands. The plurality of radiation circuits include a first radiation circuit and a second radiation circuit. One or more target frequency bands included in an electromagnetic wave transmitted by the first radiation circuit are different from one or more target frequency bands included in an electromagnetic wave transmitted by the second radiation circuit. Each of the plurality of radiation circuits is configured to: filter the charging signal, and if a target electromagnetic wave is filtered out, transmit the target electromagnetic wave, where a frequency band corresponding to the target electromagnetic wave is included in one or more target frequency bands corresponding to an electromagnetic wave that can be transmitted by a corresponding radiation circuit.
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公开(公告)号：EP4358364A1
公开(公告)日：2024-04-24
申请号：EP22898744.2
申请日：2022-07-13
发明人： HA, Mincheol , KIM, Dongzo
摘要： A power relay device may be mounted to a cover which covers a portable power reception device, and may comprise: a coil; a power reception circuit which rectifies a power signal received from a power transmission device through the coil; a wireless communication circuit which is driven using the power signal received from the power reception circuit and communicates with the power transmission device and the power reception device by using the coil; and a relay control circuit which is driven using the power signal received from the power reception circuit and is 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 on the basis that the first received power value is received, transmit a second received power value indicating power consumed by the power relay device to the power transmission device by using the wireless communication circuit.
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公开(公告)号：EP4142110A1
公开(公告)日：2023-03-01
申请号：EP21793227.6
申请日：2021-04-20
申请人： LG Electronics, Inc.
发明人： PARK, Yongcheol , LEE, Minsoo , YOOK, Gyunghwan , CHOI, Jingu
摘要： A wireless power reception device according to an embodiment of the present specification comprises a controller for: receiving wireless power from a wireless power transmission device, and performing power pickup for receiving the wireless power from the wireless power transmission device by magnetic coupling with the wireless power transmission device at an operating frequency; and communicating with the wireless power transmission device by using at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency, and controlling reception of the wireless power, wherein, in the power transmission step of receiving the wireless power, the controller transmits or receives, using the in-band communication, a message for controlling the wireless power, and transmits or receives, using the out-band communication, an authentication message for authentication of the wireless power transmission device.
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公开(公告)号：EP4040639A1
公开(公告)日：2022-08-10
申请号：EP21466001.1
申请日：2021-02-08
申请人： MEGAHERTZ s.r.o.
发明人： Aizen, Karel
摘要： A device, in particular for wireless power supply and charging, the essence of which consists in the fact that a modulated source (1) and a generator (2) of excitation signals are connected in parallel between the power source (46) and the power part of the device, which together excite the power part of the device, wherein the first and second working coils (10, 11) are connected in parallel with the first and second transistors (9, 12). The power part consists of at least one pair of the first transistor (5) or the second transistor (6) and the first choke coil (7) or the second choke coil (8), wherein the excitation signal generator (2) operates with a mark-to-space ratio ranging from 50 up to 53%.
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公开(公告)号：EP4005851A1
公开(公告)日：2022-06-01
申请号：EP20847945.1
申请日：2020-07-17
申请人： Denso Corporation
摘要： A dynamic wireless power transfer system (500) includes: a power transmission coil (40) that is provided in a road (105); a power transmission circuit (30) that supplies electric power to the power transmission coil; a power reception coil (240f, 240r) that is provided in a vehicle (202); a power reception circuit (230) that is connected to the power reception coil; and a relay circuit (70) that is provided in a tire of the vehicle, includes at least two relay coils that are connected in series, and transfers electric power from the power transmission coil to the power reception coil by one (71a1) relay coil of the two relay coils opposing the power transmission coil and the other (71a2) relay coil opposing the power reception coil. A resonance frequency of the relay circuit is a frequency that is within a fixed range that is centered on an applied frequency of an alternating-current voltage that is applied to the power transmission coil.
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公开(公告)号：EP3968497A1
公开(公告)日：2022-03-16
申请号：EP21185030.0
申请日：2021-07-12
发明人： Lee, Hankyu , Kim, Sang Joon
摘要： A wireless power relay apparatus includes: a first antenna configured to wirelessly receive an alternating current (AC) power signal of a first frequency from a wireless power transmission apparatus; a rectifier configured to convert the received AC power signal into a direct current (DC) power; a storage device configured to store electric energy of the DC power output from the rectifier; a power oscillator configured to generate an AC power signal of a second frequency based on an output current of the rectifier and electric energy of a DC voltage stored in the storage device; and a second antenna configured to transmit the AC power signal of the second frequency to a wireless power reception apparatus.
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公开(公告)号：EP3871314A1
公开(公告)日：2021-09-01
申请号：EP20740910.3
申请日：2020-01-15
发明人： LIM, Sang-Min , CHOI, Young-Ho
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9.发明公开
公开(公告)号：EP3790162A1
公开(公告)日：2021-03-10
申请号：EP20164764.1
申请日：2020-03-23
申请人： LG Electronics Inc.
IPC分类号： H02J50/50
摘要： Disclosed herein is a wireless charging apparatus for preventing cancelation of magnetic fields generated between a plurality of adjacent transmission coils by placing a repeater on the plurality of transmission coils, the wireless charging apparatus including a plurality of transmission coils spaced the same distance apart from a reference point, and a repeater placed on the plurality of transmission coils to be overlapped with each of the plurality of transmission coils with respect to the reference point that is a center, wherein a coupling coefficient between each of the plurality of transmission coils and the repeater is higher than a coupling coefficient between the plurality of transmission coils.
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公开(公告)号：EP3343732B1
公开(公告)日：2020-09-02
申请号：EP16839433.6
申请日：2016-07-11
申请人： LG Innotek Co., Ltd.
发明人： PARK, Jae Hee
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