公开(公告)号：US20210265108A1

公开(公告)日：2021-08-26

申请号：US17256624

申请日：2018-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Jihyun LEE ,  Bongsik KWAK ,  Yongcheol PARK

IPC: H01F38/14 ,  H01F27/30 ,  H01F27/36 ,  H02J50/40 ,  H02J50/80

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.

公开(公告)号：US20200336021A1

公开(公告)日：2020-10-22

申请号：US16488195

申请日：2019-04-16

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK

IPC: H02J50/80 ,  H02J7/02 ,  H04W12/06 ,  H02J50/40

Abstract: Provided are a device and method for performing authentication in a wireless power transfer system. Provided is an authentication method in a wireless power transfer system including receiving a first packet including indication information on whether a target device supports an authentication function from the target device; transmitting, when the target device supports an authentication function, an authentication request message to the target device; receiving an authentication response message including a certificate on wireless charging from the target device in response to the authentication request message; and confirming authentication of the target device based on the authentication response message.

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

IPC: H02J50/60 ,  H02J50/80 ,  H04B5/00 ,  H02J50/12

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.

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

IPC: H04W52/28 ,  H04W52/34 ,  H04W52/22

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).

公开(公告)号：US20200251937A1

公开(公告)日：2020-08-06

申请号：US16854130

申请日：2020-04-21

Applicant: LG Electronics Inc.

Inventor： Yongcheol PARK

IPC: H02J50/80 ,  H02J50/10 ,  H04L5/00 ,  H02J50/60 ,  H02J7/02

Abstract: A wireless power transmission method executed by a power transmitter comprising multi-coils, according to one embodiment of the present invention, comprises the steps of: detecting a second power receiver while transmitting power to a first power receiver; determining at least one primary coil adequate for power transmission; by using the determined at least one primary coil, determining whether the second power receiver supports a shared mode protocol; and if the second power receiver supports the shared mode protocol, transmitting power to the first and second power receivers according to the shared mode protocol, wherein the shared mode protocol may be a protocol for simultaneously managing information exchanges between the power transmitter and multiple power receivers.

公开(公告)号：US20190280534A1

公开(公告)日：2019-09-12

申请号：US16349914

申请日：2017-11-10

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK

IPC: H02J50/80 ,  H04B5/00 ,  H02J50/60 ,  H02J50/10

Abstract: A wireless power transfer method may include a selection phase of monitoring the placement and removal of an object for an interface surface of the power transmitter, a ping phase of receiving a response from a power receiver by performing digital ping using a first communication protocol, an identification/configuration phase of receiving a configuration packet including configuration information of the power receiver using the first communication protocol, wherein the configuration packet includes power class information of the power receiver and communication protocol information of the power receiver, a negotiation phase of selecting any one of the first communication protocol and a second communication protocol different from the first communication protocol based on the power class information and/or the communication protocol information using the first communication protocol, a calibration phase of improving the ability to detect a foreign object by controlling a specific parameter, and a power transfer phase of performing communication with the power receiver using the selected communication protocol and transferring power to the power receiver.

公开(公告)号：US20190081518A1

公开(公告)日：2019-03-14

申请号：US16184604

申请日：2018-11-08

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Jeongkyo SEO ,  Seonghun LEE ,  Bongsik KWAK ,  Jaesung LEE

IPC: H02J50/80 ,  H02J50/12 ,  H02J7/02 ,  H04L1/00 ,  H04L27/10 ,  H04B5/00 ,  H02J5/00 ,  H04L1/18 ,  H04L5/14

Abstract: A communication method of a wireless power transmitter for transferring power in a wireless manner, includes allocating a slot among a plurality of slots to a first wireless power receiver, the slot being allocated to the first wireless power receiver for acquiring information of the first wireless power receiver while wireless power is transferred to the first wireless power receiver; transferring the wireless power to the first wireless power receiver by the wireless power transmitter; detecting a second wireless power receiver by the wireless power transmitter during the wireless power transfer to the first wireless power receiver; and generating a collision related signal based on a frequency shift keying (FSK) such that a collision resolution mechanism is executed by each of the first and second wireless power receivers respectively when first information generated by the first wireless power and second information generated by the second wireless power are in a collision within a first unallocated slot among the plurality of slots, the first information and the second information being generated based on a load modulation.

公开(公告)号：US20170141604A1

公开(公告)日：2017-05-18

申请号：US15319980

申请日：2015-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Jaesung LEE ,  Jeongkyo SEO ,  Jungjoon LEE ,  Beomseok CHAE ,  Jihyun LEE ,  Kyunghwan KIM

IPC: H02J7/02 ,  H02J50/60 ,  B60L11/18

Abstract: The present disclosure relates to a foreign object detection method of a wireless power transmitter, and the method may include acquiring the frequency characteristics of a current flowing through a coil within the wireless power transmitter, comparing a peak frequency with a resonant frequency, and detecting whether or not the foreign object is placed on the transmitter through the comparison. In addition, the present disclosure relates to an interference avoidance method of a wireless power transmitter, and the method may include connecting a head unit of an automobile in a wireless manner through a communication device, receiving a first signal for avoiding interference from the head unit to stop wireless charging or change a first frequency band to a second frequency band, and receiving a second signal from the head unit to resume the wireless charging or change to the first frequency band.

公开(公告)号：US20160329755A1

公开(公告)日：2016-11-10

申请号：US15109098

申请日：2015-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Hyunbeom LEE

IPC: H02J50/80 ,  H02J7/02 ,  H02J7/04 ,  H02J50/12

CPC classification number: H02J50/80 ,  H02J7/025

Abstract: The present disclosure relates to a wireless power transmission and reception method, a wireless power transmission and reception apparatus, and a wireless charging system in a wireless power transmission and reception field, and the method may include sensing whether or not there exists a wireless power receiver within a range capable of transmitting power in a wireless manner, sending a detection signal to the wireless power receiver, allowing the wireless power receiver to receive at least one of an identification packet and a setting packet transmitted in a first mode, determining whether or not to perform communication in either one of the first mode and a second mode different from the first mode based on the setting packet, and transmitting power to the wireless power receiver while performing communication in the determined either one mode, wherein the setting packet comprises an operation mode indicating a communication execution mode of the wireless power receiver.

Abstract translation: 本公开涉及无线电力发送和接收方法，无线电力发送和接收装置以及无线电力发送和接收领域中的无线充电系统，并且该方法可以包括检测是否存在无线电力接收器 在能够以无线方式发送功率的范围内，向无线电力接收器发送检测信号，允许无线电力接收机接收以第一模式发送的识别分组和设置分组中的至少一个，确定是否 基于设定分组在第一模式和与第一模式不同的第二模式中进行通信，并且在所确定的任一模式下进行通信时向无线功率接收机发送功率，其中，所述设置分组包括操作 指示无线电力接收机的通信执行模式的模式。

公开(公告)号：US20160233728A1

公开(公告)日：2016-08-11

申请号：US15024243

申请日：2014-12-01

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Jeongkyo SEO ,  Seonghun LEE ,  Bongsik KWAK ,  Jaesung LEE

IPC: H02J50/80 ,  H04L5/00 ,  H04W72/04 ,  H02J50/12 ,  H02J7/02

CPC classification number: H02J50/80 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0081 ,  H04L1/00 ,  H04L1/1854 ,  H04L5/14 ,  H04L27/10

Abstract: The present invention relates to a wireless power transmission method, a wireless power transmission apparatus, and a wireless charging system in a wireless power transmission field, and the wireless power transmission method may include receiving first information of a first wireless power receiver and second information of a second wireless power receiver that receive power in a wireless manner within a first slot among a plurality of slots, transmitting a NAK (not-acknowledge) signal to the first and the second wireless power receiver and executing a collision resolution mechanism in the first and the second wireless power receiver.

Abstract translation: 无线电力传输方法技术领域本发明涉及无线电力传输方法，无线电力传输装置和无线充电系统，无线电力传输方法可以包括：接收第一无线电力接收机的第一信息和第二信息 第二无线电力接收器，其以多个时隙中的第一时隙内的无线方式接收电力，向所述第一和第二无线电力接收器发送NAK（未确认）信号，并在所述第一和第二无线电力接收器中执行冲突解决机制， 第二个无线电力接收机。