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31.发明公开公开(公告)号：US20230344280A1
公开(公告)日：2023-10-26
申请号：US18005794
申请日：2021-07-15
Applicant: LG ELECTRONICS INC.
Inventor： Jingu CHOI , Gyunghwan YOOK , Yongcheol PARK , Minsoo LEE , Jinho YOUN
CPC classification number: H02J50/80 , H02J50/60 , H02J50/90 , H02J50/12 , H02J13/00026
Abstract: A wireless power transmitter according to an embodiment of the present specification comprises: a power converter comprising a primary coil magnetically coupled to a secondary coil of a wireless power receiver to transmit wireless power; and a controller for communicating with the wireless power receiver and controlling the wireless power transmission, wherein the controller receives first information relating to the secondary coil from the wireless power receiver, receives second information relating to the position information of the wireless power receiver from the wireless power receiver, and distinguishes a state in which a foreign material is present between the wireless power receiver and the wireless power transmitter, and a misalignment state of the primary coil and secondary coil, on the basis of the first information and second information.
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公开(公告)号：US20230319562A1
公开(公告)日：2023-10-05
申请号：US18025161
申请日：2020-09-08
Applicant: LG ELECTRONICS INC.
Inventor： Minsoo LEE , Jingu CHOI , Gyunghwan YOOK , Seunghyun YOO , Yongcheol PARK
IPC: H04W12/069 , H02J50/80 , H04B5/00 , H04W12/50
CPC classification number: H04W12/069 , H02J50/80 , H04B5/0025 , H04W12/50 , H02J50/12
Abstract: A wireless power transmission apparatus for transmitting wireless power to a wireless power reception apparatus, according to an embodiment of the present specification: transmits wireless power to the wireless power reception apparatus by means of magnetic coupling to the wireless power reception apparatus at an operating frequency; communicates with the wireless power reception apparatus by using at least one of in-band communication using the operating frequency and out-band communication using Bluetooth communication; performs an authentication step with the wireless power reception apparatus to increase the level of the wireless power being transmitted to the wireless power reception apparatus; and includes, in a Bluetooth packet, an authentication message required in the authentication step, and transmits the included authentication message to the wireless power reception apparatus via the Bluetooth communication.
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公开(公告)号：US20230261528A1
公开(公告)日：2023-08-17
申请号：US18003964
申请日：2021-07-02
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK , Minsoo LEE , Jingu CHOI , Gyunghwan YOOK , Jinho YOUN
CPC classification number: H02J50/80 , H04B5/0037 , H02J50/40
Abstract: A wireless power reception apparatus according to an embodiment of the present specification transmits wireless charging packets, which can be transmitted using in-band communication, using a Bluetooth packet used in Bluetooth communication, through the Bluetooth communication, wherein, in connection with first wireless charging packets among the wireless charging packets, multiple first wireless charging packets are included in one Bluetooth packet and then transmitted through the Bluetooth communication, and in connection with second wireless charging packets among the wireless charging packets, a single second wireless charging packet is included in one Bluetooth packet and then transmitted through the Bluetooth communication.
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公开(公告)号：US20230187981A1
公开(公告)日：2023-06-15
申请号：US17999323
申请日：2021-05-20
Applicant: LG ELECTRONICS INC.
Inventor： Jingu CHOI , Yongcheol PARK , Minsoo LEE , Gyunghwan YOOK
Abstract: A method by which a wireless power transmitter transmits wireless power, according to one embodiment of the present specification, comprises: a ping step of transmitting a digital ping, and receiving a response to the digital ping from a wireless power receiver; a configuration step of receiving, from the wireless power receiver, a configuration packet including information about whether the wireless power receiver supports an authentication function; and a power transmission step of transmitting wireless power to the wireless power receiver, wherein the power transmission step includes a low-power transmission step of transmitting low wireless power, an authentication step of authenticating the wireless power transmitter on the basis the supporting of the authentication function by the wireless power receiver, and a high-power transmission step of transmitting high wireless power on the basis of the successful authentication of the wireless power transmitter in the authentication step.
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公开(公告)号：US20230078771A1
公开(公告)日：2023-03-16
申请号：US17799813
申请日：2021-02-17
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK , Gyunghwan YOOK , Jinho YOUN
Abstract: A wireless power reception device according to an embodiment of the present document comprises: a power pickup circuit which receives wireless power from a wireless power transmission device; and a communication/control circuit which communicates with the wireless power transmission device and controls the wireless power, wherein the communication/control circuit may transmit and receive application-level messages with the wireless power transmission device by using a data transport stream including an auxiliary data control (ADC) packet and a plurality of continuous auxiliary data transmission (ADT) packets, and transmits a data packet including information about the maximum size of the ADT packet to the wireless power transmission device.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20200328629A1
公开(公告)日：2020-10-15
申请号：US16915836
申请日：2020-06-29
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan KIM , Yongcheol PARK , Jihyun LEE , Gyunghwan YOOK
Abstract: Provided are an apparatus and method for performing foreign object detection in a wireless power transfer system. The present specification discloses a method comprising receiving a digital ping from the wireless power transmitter; transmitting an identification and configuration packets to the wireless power transmitter; transmitting a foreign object detection (FOD) state packet which indicates a reference Q factor of the wireless power receiver to the wireless power transmitter; and receiving wireless power through magnetic coupling from the wireless power transmitter based on the foreign object detection result of the wireless power transmitter using the reference Q factor. Irrespective of individual characteristics of a wireless power receiver, accuracy and reliability of detecting a foreign object may be improved.
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37.发明申请公开(公告)号：US20200252886A1
公开(公告)日：2020-08-06
申请号：US16857895
申请日：2020-04-24
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK , Jaeyeol KIM , Joonho PARK , Jeongkyo SEO , Gyunghwan YOOK , Jaesung LEE
Abstract: A method for performing authentication of a target device in a wireless power transmission system, includes receiving, from the target device, a first packet including indication information related to whether or not the target device supports an authentication function; in case the target device supports the authentication function, transmitting an authentication request message to the target device; and receiving, from the target device, an authentication response message including a certificate related to wireless charging as a response to the authentication request message, wherein a format of the certificate includes a certificate type that informs whether the certificate is one of a plurality of certificates including a root certificate, an intermediate certificate and a final certificate for a wireless power transmitter (PTX).
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公开(公告)号：US20200244108A1
公开(公告)日：2020-07-30
申请号：US16627200
申请日：2018-06-28
Applicant: LG Electronics Inc.
Inventor： Sungkyu KIM , Jeongkyo SEO , Jinmoo PARK , Seonghun LEE , Bongsik KWAK , Jaesung LEE , Jihyun LEE , Gyunghwan YOOK , Joonho PARK , Youngchan CHO
Abstract: The present invention relates to a multi-coil based wireless power transmission device and method. Disclosed in the present specification is a wireless power transmission device comprising: a primary coil array forming a magnetic coupling with a secondary coil, which is provided in a wireless power reception device, so as to transmit wireless power to the wireless power reception device; a plurality of inverters connected to a plurality of primary coils one-to-one so as to selectively drive each of the plurality of primary coils; a communication and control unit, which controls the plurality of inverters and communication with the wireless power reception device such that at least one primary coil is driven on the basis of the degree of magnetic coupling formed by each primary coil and the secondary coil, thereby determining output, which can be provided by the primary coil array, within a value obtained by summing all the maximum outputs individually set to the respective primary coils. In an intermediate power level wireless power transmission system, a non-chargeable state due to coil misalignment can be compensated for on the basis of multi-coils, an extended design of a charging area at low cost is simple, and the degree of freedom of the position or the alignment of a reception device can be increased.
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公开(公告)号：US20250105678A1
公开(公告)日：2025-03-27
申请号：US18705873
申请日：2022-10-27
Applicant: LG ELECTRONICS INC.
Inventor： Taewook KWON , Gyunghwan YOOK , Jinho YOUN , Yongcheol PARK
Abstract: The present disclosure provides a method for transmitting wireless power, performed by a wireless power transmitter, in a wireless power transmission system, and a device using same, the method comprising: entering a power transmission phase associated with transmitting the wireless power to a wireless power receiver; generating a slot in the power transmission phase; and performing foreign object detection on the slot, wherein the wireless power transmitter transmits the wireless power to the wireless power receiver on the basis of a first operating frequency before generating the slot, the wireless power transmitter resumes transmitting the wireless power on the basis of a second operating frequency after the slot is ended, and the second operating frequency is a higher frequency than the first operating frequency.
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40.发明公开公开(公告)号：US20240322613A1
公开(公告)日：2024-09-26
申请号：US18677490
申请日：2024-05-29
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK , Joonho PARK , Gyunghwan YOOK
Abstract: The present invention relates to an apparatus and a method for performing power calibration in a wireless power transmission system. The present specification provides a wireless power transmission apparatus comprising: a power conversion unit configured to transmit, in a power transfer phase, wireless power generated on the basis of magnetic coupling to a wireless power receiving device; and a communication/control unit configured to perform an initial calibration for a power parameter prior to the power transfer phase, receive a first received power packet from the wireless power receiving device indicating the power received by the wireless power receiving device during the power transfer phase, and detect foreign matter by using the received power and a first power loss determined on the basis of the initial calibration. It is possible to adaptively respond to a newly changed wireless charging environment to calibrate transmission power and reception power, and it is possible to detect foreign matter more precisely by detecting a power loss on the basis of the calibrated transmission and reception power.
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