公开(公告)号：US09660486B2

公开(公告)日：2017-05-23

申请号：US14400265

申请日：2013-05-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung Lee ,  Seonghun Lee ,  Yongcheol Park ,  Bongsik Kwak ,  Jeongkyo Seo ,  Hyunbeom Lee

IPC: H02J7/00 ,  H02J17/00 ,  H02J5/00 ,  H02J7/02 ,  H02J50/12 ,  H01F38/14

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J7/0004 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

Abstract: The present specification provides a wireless power transfer device formed to transmit power to a wireless power reception device, and a power transfer unit in the wireless power transfer device comprises: a first coil formed to generate a magnetic field so as to transmit power in an induction scheme; and a second coil wound around the first coil and formed to generate a magnetic field vibrating at a resonance frequency so as to transmit power in a resonance scheme.

公开(公告)号：US09287039B2

公开(公告)日：2016-03-15

申请号：US13936897

申请日：2013-07-08

Applicant: LG ELECTRONICS INC.

Inventor： Jihyun Lee ,  Hyunbeom Lee ,  Yongcheol Park ,  Jaesung Lee

IPC: H02J7/00 ,  H01F38/14 ,  H02J7/02 ,  H02J17/00 ,  H02J5/00 ,  H04B5/00

CPC classification number: H02J7/025 ,  H01F38/14 ,  H02J5/005 ,  H02J7/042 ,  H02J17/00 ,  H02J50/10 ,  H02J50/12 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037

Abstract: A wireless power transfer method for a wireless power transfer apparatus using full and half-bridge inverter topologies includes detecting whether or not a wireless power receiver is present within a range of power being transferrable in a wireless manner, transmitting a detection signal to the wireless power receiver, receiving at least one of identification information and setting information from the wireless power receiver, receiving a control error packet from the wireless power receiver, and controlling an amount of power to be transferred by using the combination of a driving frequency, a duty cycle or a power signal phase to the full or half-bridge inverter.

Abstract translation: 一种使用全半桥逆变器拓扑结构的无线功率传输装置的无线功率传输方法，包括：检测在无线传输方式的功率范围内是否存在无线电力接收机，向无线电力发送检测信号 接收器，从无线电力接收器接收识别信息和设置信息中的至少一个，从无线电力接收器接收控制错误分组，以及通过使用驱动频率，占空比的组合来控制要传送的功率量 或电源信号相位到全桥或半桥逆变器。

公开(公告)号：US20150137746A1

公开(公告)日：2015-05-21

申请号：US14400265

申请日：2013-05-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung Lee ,  Seonghun Lee ,  Yongcheol Park ,  Bongsik Kwak ,  Jeongkyo Seo ,  Hyunbeom Lee

IPC: H02J17/00 ,  H02J7/02 ,  H02J5/00

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J7/0004 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

Abstract: The present specification provides a wireless power transfer device formed to transmit power to a wireless power reception device, and a power transfer unit in the wireless power transfer device comprises: a first coil formed to generate a magnetic field so as to transmit power in an induction scheme; and a second coil wound around the first coil and formed to generate a magnetic field vibrating at a resonance frequency so as to transmit power in a resonance scheme.

Abstract translation: 本说明书提供了一种形成为向无线电力接收装置发送功率的无线电力传送装置，无线电力传送装置中的电力传送装置包括：第一线圈，其被形成为产生磁场，以便在感应中发射功率 方案; 以及缠绕在第一线圈上并形成为产生以共振频率振动以便以谐振方案发送功率的磁场的第二线圈。

公开(公告)号：US12289599B2

公开(公告)日：2025-04-29

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: H02J50/80 ,  H04B5/70 ,  H04W12/069 ,  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.

公开(公告)号：US12155237B2

公开(公告)日：2024-11-26

申请号：US17909049

申请日：2021-03-08

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park

IPC: H02J50/80 ,  H02J50/10 ,  H04B5/79

Abstract: A method for transmitting wireless power according to one embodiment of the present specification involves: receiving information about received power values for two or more correction points for power correction from a device for receiving wireless power; constructing a power correction curve, for detecting foreign substances, on the basis of the information about the received power values; and transmitting a data packet requesting initiation of a power correction protocol for updating the power correction curve.

公开(公告)号：US12126187B2

公开(公告)日：2024-10-22

申请号：US18229819

申请日：2023-08-03

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park ,  Kyunghwan Kim

IPC: H02J50/60 ,  H02J50/10 ,  H02J50/40 ,  H02J50/80

CPC classification number: H02J50/60 ,  H02J50/10 ,  H02J50/80 ,  H02J50/40

Abstract: The present specification provides a wireless power reception apparatus comprising: a power pick-up unit configured to receive wireless power from a wireless power transmission apparatus by magnetic coupling with the wireless power transmission apparatus and convert an AC signal generated by the wireless power into a DC signal; a communication/control unit configured to receive the DC signal from the power pick-up unit and control the wireless power; and a load configured to receive the DC signal from the power pick-up unit. When foreign material is detected before power transmission, wireless power transmission is sustained on the basis of a safe basic power profile of 5 W or less, without interrupting power transmission, and thus, a charging delay can be prevented and the accuracy and reliability of detection of foreign material can be increased despite individual characteristics of the wireless power reception apparatus.

公开(公告)号：US12034318B2

公开(公告)日：2024-07-09

申请号：US17988613

申请日：2022-11-16

Applicant: LG Electronics Inc.

Inventor： Yongcheol Park ,  Gyunghwan Yook

IPC: H02J50/80 ,  H02J50/40 ,  H02J50/60

CPC classification number: H02J50/80 ,  H02J50/40 ,  H02J50/60

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.

公开(公告)号：US11949467B2

公开(公告)日：2024-04-02

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

IPC: H04B5/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H04B17/10 ,  H04W52/38

CPC classification number: H04B5/0037 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H04B17/102 ,  H04W52/383

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.

公开(公告)号：US11791670B2

公开(公告)日：2023-10-17

申请号：US17986595

申请日：2022-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Joonho Park ,  Jinkwon Lim ,  Jingu Choi ,  Yongcheol Park

IPC: H02J50/80 ,  H02J50/10 ,  H02J7/00

CPC classification number: H02J50/80 ,  H02J7/00034 ,  H02J7/00045 ,  H02J50/10

Abstract: The present specification relates to a device and method for supporting heterogeneous communication in a wireless power transfer system. The present specification discloses a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transfer device, wireless power generated on the basis of magnetic coupling in a power transfer phase; and a communication and control circuit configured to transmit, to the wireless power transfer device, a first random address packet including a random address of the wireless power reception device or receive, from the wireless power transfer device, a second random address packet including a random address of the wireless power transfer device via in-band communication. By performing a handover using a random address, cross reference can be prevented and security can be enhanced, and thus a BLE connection in a wireless charging system can be more safely performed.

公开(公告)号：US20230261522A1

公开(公告)日：2023-08-17

申请号：US18304677

申请日：2023-04-21

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park ,  Gyunghwan Yook

IPC: H02J50/10 ,  H02J50/80 ,  H02J50/12

CPC classification number: H02J50/10 ,  H02J50/80 ,  H02J50/12 ,  H02J50/005

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, perform a negotiation for a first available power indicator with the wireless power reception apparatus; and a power converter configured to transmit a wireless power to the wireless power reception apparatus according to the first available power indicator, 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 available power indicator, and transmit a packet related to a second available power indicator 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.