-
101.发明申请公开(公告)号：US20220029475A1
公开(公告)日：2022-01-27
申请号：US17449884
申请日：2021-10-04
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.
-
公开(公告)号：US20210376882A1
公开(公告)日：2021-12-02
申请号：US17397323
申请日：2021-08-09
Applicant: LG Electronics Inc.
Inventor： Yongcheol PARK
Abstract: According to an embodiment of the present invention, a method for transferring wireless power by an electric power transmitter may comprise: a selection step of monitoring a placement or a removal of an object on or from an interface surface of the power transmitter; a ping step of performing a digital ping and receiving a response from a power receiver; an identifying/configuring step of receiving a configuration packet including configuration information of the power receiver; and a negotiating step of transmitting a capability packet including information on a level of power transferred by the power transmitter, wherein the capability packet may include an NFC detection field indicating whether the power transmitter has a capability of detecting an RFID and/or an NFC, and/or whether the RDID and/or the NFC is detected.
-
103.发明申请公开(公告)号：US20210266042A1
公开(公告)日：2021-08-26
申请号：US17260790
申请日：2019-07-16
Applicant: LG ELECTRONICS INC.
Inventor： Joonho PARK , Bongsik KWAK , Sungkyu KIM , Yongcheol PARK , Seonghun LEE , Jihyun LEE
Abstract: The present invention relates to an apparatus and a method for supporting heterogeneous communication in a wireless power transmission system. The present disclosure discloses a wireless power receiver comprising: a power pickup unit configured to receive, from a wireless power transmitter, a digital ping signal or wireless power by magnetically coupling with the wireless power transmitter at an operating frequency, and to convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit configured to receive the direct current signal from the power pickup unit, and to perform at least one of an in-band communication using the operating frequency and an out-band communication using a frequency other than the operating frequency; and a load configured to receive the direct current signal from the power pickup unit. As a heterogeneous communication protocol can be selected at an early stage of power transmission between the wireless power transmitter and the wireless power receiver, it is possible to support various applications of wireless power transmission.
-
104.发明申请公开(公告)号：US20210203193A1
公开(公告)日：2021-07-01
申请号：US17268407
申请日：2019-08-06
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan KIM , Gyunghwan YOOK , Yongcheol PARK , Jinmoo PARK
Abstract: Disclosed in the present specification is a wireless power reception device comprising: a power pickup unit for receiving wireless power from a wireless power transmission device by means of magnetic coupling with the wireless power transmission device and transforming, into a direct current signal, an alternating current signal generated by wireless power; a communication/control unit for receiving the direct current signal from the power pickup unit, transmitting, to the wireless power transmission device, a first power transmission suspension packet for temporarily suspending transmission of the wireless power in order to detect a foreign object, and performing a foreign object detection procedure within a predetermined time window when the transmission of the wireless power is temporarily suspended; and a load for receiving the direct current signal from the power pickup unit.
-
105.发明申请公开(公告)号：US20210194295A1
公开(公告)日：2021-06-24
申请号：US17269508
申请日：2019-08-13
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan KIM , Yongcheol PARK , Gyunghwan YOOK
Abstract: The present specification discloses a method for receiving wireless power from a wireless power transmission device on the basis of foreign object detection, the method comprising the steps of: receiving a digital ping from the wireless power transmission device; transmitting identification and configuration packets to the wireless power transmission device; transmitting a foreign substance detection state packet indicating a reference Q factor value of a wireless power reception device to the wireless power transmission device; and receiving wireless power through magnetic coupling from the wireless power transmission device, on the basis of a result of foreign substance detection using the reference Q factor value by the wireless power transmission device.
-
Patent Agency Ranking
106.发明申请公开(公告)号：US20200280342A1
公开(公告)日：2020-09-03
申请号：US15930911
申请日：2020-05-13
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK
Abstract: A wireless power transmitter includes a power conversion unit configured to transfer wireless power to a wireless power receiver by forming magnetic coupling with the wireless power receiver; and a communication/control unit configured to communicate with the wireless power receiver to control transmission of the wireless power and to perform high level data transport. Further, the communication/control unit is configured to transmit a data stream including a sequence of data packets in which the high level data is divided to the wireless power receiver based on the high level data transport, and the data stream includes at the beginning an auxiliary data control packet.
-
公开(公告)号：US20190020200A1
公开(公告)日：2019-01-17
申请号：US16135960
申请日：2018-09-19
Applicant: LG Electronics Inc.
Inventor： Yongcheol PARK
CPC classification number: H02J5/005 , H02J7/0013 , H02J7/025 , H02J50/12 , H02J50/80 , H04B5/0037 , H04B5/0087
Abstract: A method of wireless power transfer, by a power transfer transferring power to a plurality of power receivers, includes a selection phase for detecting each of the plurality of power receivers and transmitting a digital ping to each of the plurality of power receivers, an introduction phase for receiving a request from each of the plurality of power receivers for a free slot, a configuration phase for providing a series of locked slots to each of the plurality of power receivers, a negotiation phase for receiving at least one negotiation data packet from each of the plurality of power receivers using the series of locked slots, a power transfer phase for transferring power to each of the plurality of power receivers, and a renegotiation phase for returning to the negotiation phase.
-
公开(公告)号：US20160241086A1
公开(公告)日：2016-08-18
申请号：US15029741
申请日：2014-09-23
Applicant: LG ELECTRONICS INC.
Inventor： Byungsang JUNG , Beomseok CHAE , Yongcheol PARK , Kyunghwan KIM
Abstract: The present specification which relates to a wireless power transmission device and a control method, capable of transmitting and receiving power wirelessly comprises a power supply unit for supplying power to a receiving device to transmit power wirelessly; and a power transmission control unit for, periodically generating a waveform with a particular frequency, measuring an attenuation coefficient of the waveform at each cycle, measuring a variation in the attenuation coefficient at each cycle, and determining the type of an external material. The present invention has a technical feature wherein the power transmission control unit determines whether to transmit power wirelessly to the receiving device on the basis of the type of the external material.
Abstract translation: 能够无线发送和接收电力的无线电力传输装置和控制方法的本说明书包括用于向接收装置供电以供无线发射功率的电源单元; 以及功率传输控制单元，用于周期性地产生具有特定频率的波形，测量每个周期上的波形的衰减系数，测量每个周期的衰减系数的变化，以及确定外部材料的类型。 本发明具有技术特征，其中电力传输控制单元基于外部材料的类型确定是否向接收装置无线发送电力。
-
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.
-
110.发明申请公开(公告)号：US20250031099A1
公开(公告)日：2025-01-23
申请号：US18712935
申请日：2022-11-23
Applicant: LG Electronics Inc.
Inventor： 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 an apparatus using same, the method comprising: transmitting a capability packet for the wireless power transmitter to a wireless power receiver in a negotiation phase, wherein the capability packet includes information on whether out-of-band communication is supported; and transmitting an extended capability packet for the wireless power transmitter to the wireless power receiver in the negotiation phase, wherein the extended capability packet includes information about a communication method supported by the wireless power transmitter.
-
-
-
-
-
-
-
-
-
Search Results
148
records
(took 0.032 seconds)
