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公开(公告)号：US20240372403A1
公开(公告)日：2024-11-07
申请号：US18775419
申请日：2024-07-17
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Gyunghwan Yook
Abstract: A wireless power transmission apparatus including a controller configured to initiate a digital ping to solicit a response from a wireless power reception apparatus, receive the response from the wireless power reception apparatus, and perform a negotiation for a first power level with the wireless power reception apparatus, and a power converter configured to transmit a wireless power to the wireless power reception apparatus based on the first power level, wherein the controller is configured to transmit, to the wireless power reception apparatus in response to a received power packet, a bit pattern response requesting a communication by the wireless power transmission apparatus to change the first power level, and transmit a packet related to a second power level to the wireless power reception apparatus, and wherein the bit pattern response is defined as a pattern different from a bit pattern for an 8-bit ACK response, a bit pattern for an 8-bit NAK response and a bit pattern for an 8-bit ND response.
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2.发明授权公开(公告)号：US12095524B2
公开(公告)日：2024-09-17
申请号：US17296186
申请日：2019-08-06
Applicant: LG ELECTRONICS INC.
Inventor： Jingu Choi , Joonho Park , Jinkwon Lim , Yongcheol Park
CPC classification number: H04B5/0037 , H02J50/12 , H02J50/40 , H02J50/80 , H04B5/0031 , H04W36/00 , H04W76/10
Abstract: The present invention relates to a device and a method for performing wireless power transfer on the basis of heterogeneous communication. Disclosed in the present specification is a wireless power receiving device comprising: a power pickup unit configured to receive wireless power from a wireless power transfer device by magnetically coupling with the wireless power transfer device at an operating frequency, and 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 perform an in-band communication using the operating frequency and/or 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. Configuration information, control information and management information related to wireless power transfer, and procedures related to the exchange thereof are defined as an out-band communication protocol, and thus various applications of wireless power can be supported.
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公开(公告)号：US12095284B2
公开(公告)日：2024-09-17
申请号：US18018679
申请日：2021-07-30
Applicant: LG Electronics Inc.
Inventor： Jinho Youn , Jingu Choi , Gyunghwan Yook , Yongcheol Park
Abstract: A wireless power receiving device according to one embodiment of the present specification comprises: a power pickup circuit for receiving wireless power from a wireless power transmitting device; and a communication/control circuit for communicating with the wireless power transmitting device by using in-band communication using a power signal of the wireless power and/or out-band communication, which is wireless communication that differs from the in-band communication, and for controlling the reception of the wireless power, wherein the communication/control circuit terminates the connection of the out-band communication on the basis of the removal of the power signal from the wireless power transmitting device in a state in which the connection of the wireless power transmitting device and the out-band communication is established.
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公开(公告)号：US12088123B2
公开(公告)日：2024-09-10
申请号：US17919707
申请日：2021-04-20
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Minsoo Lee , Gyunghwan Yook , Jingu Choi
CPC classification number: H02J50/80 , H02J50/12 , H02J50/40 , H04B5/79 , H04W12/06 , H02J50/10 , H02J50/15 , H02J50/20
Abstract: 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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5.发明授权公开(公告)号：US12021397B2
公开(公告)日：2024-06-25
申请号：US18302938
申请日：2023-04-19
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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Patent Agency Ranking
6.发明授权公开(公告)号：US11881912B2
公开(公告)日：2024-01-23
申请号：US18164195
申请日：2023-02-03
Applicant: LG Electronics Inc.
Inventor： Yongcheol Park
Abstract: The present application describes a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transmission device, a wireless power generated on the basis of magnetic coupling in a power transmission phase; and a communication and control circuit configured to transmit, to the wireless power transmission device, a configuration packet including first dual data stream information, or to receive, from the wireless power transmission device, a capability packet including second dual data stream information. Upper layer data can be effectively exchanged by clearly recognizing whether the upper layer data is bidirectionally transmitted between the wireless power transmission device and the wireless power reception device, and accuracy of power loss and saving of processing resources can be achieved by synchronizing the timing of calculating the power loss between the wireless power transmission device and the wireless power reception device.
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公开(公告)号：US11558083B2
公开(公告)日：2023-01-17
申请号：US17538549
申请日：2021-11-30
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: A wireless power transmitter including a power converter configured to transfer a wireless power to a wireless power receiver; and a communicator/controller configured to control the wireless power. Further, the communicator/controller is further configured to transmit, to the wireless power receiver, a bit pattern requesting permission to communicate; receive, from the wireless power receiver, a response packet granting the permission in response to the bit pattern; and transmit, to the wireless power receiver in a power transfer phase in which the wireless power is transferred, an auxiliary data transport (ADT) data packet after receiving the response packet. In addition, a header of the ADT data packet is set to a value informing a retransmission of a previous ADT data packet, based on receiving a not acknowledge (NAK) in response to the previous ADT data packet from the wireless power receiver.
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公开(公告)号：US11539249B2
公开(公告)日：2022-12-27
申请号：US17412909
申请日：2021-08-26
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: A wireless power transmitter according to one embodiment of the present disclosure transmits wireless power to a wireless power receiver, receives a first received power packet including an estimated received power value indicating a first calibration data point from the wireless power receiver after a negotiation phase, transmits ACK in response to the first received power packet, receives a second received power packet including an estimated received power value indicating a second calibration data point from the wireless power receiver, transmits ACK in response to the second received power packet, receives a new second received power packet including an estimated received power value indicating a third calibration data point from the wireless power receiver, transmits ACK in response to the new second received power packet, and constructs a power calibration curve using the first received power packet, the second received power packet, and the new second received power packet.
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公开(公告)号：US11532957B2
公开(公告)日：2022-12-20
申请号：US17313572
申请日：2021-05-06
Applicant: LG Electronics Inc.
Inventor： Yongcheol Park , Gyunghwan Yook
Abstract: A wireless power transmitter including a power conversion unit configured to transmit wireless power generated based on magnetic coupling in a power transfer phase and a control unit configured to receive, from the wireless power receiver operating at a first operating point, a first received power packet of the first operating point and a second received power packet of the first operating point based on the first received power packet of the first operating point and the second received power packet of the first operating point and configured to receive a first received power packet of the second operating point and a second received power packet of the second operating point related to power calibration and construct a second power calibration curve based on the first received power packet of the second operating point and the second received power packet of the second operating point.
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公开(公告)号：US11355281B2
公开(公告)日：2022-06-07
申请号：US17256624
申请日：2018-06-28
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan Kim , Jihyun Lee , Bongsik Kwak , Yongcheol Park
Abstract: The present disclosure relates to a wireless power receiver and a method therefor, the wireless power receiver comprising: a secondary coil which is magnetically coupled to a primary coil provided in a wireless power transmitter so as to receive wireless power from the wireless power transmitter; a shielding member for supporting the secondary coil; a power pickup unit including a rectifier circuit which rectifies an alternating current signal of the wireless power received by the secondary coil into a direct current signal; and a communication/control unit for controlling transmission of the wireless power and communicating with the wireless power transmitter. On the basis of the secondary coil and shielding member according to the present embodiment, slimming of an applied product may be achieved and, simultaneously, the same target performance index (required for a medium power level (for example, 60 W) standard) may be realized.
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