公开(公告)号：US20190097450A1

公开(公告)日：2019-03-28

申请号：US16204244

申请日：2018-11-29

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Hyunbeom LEE ,  Jaesung LEE ,  Byungsang JUNG ,  Jinmoo PARK ,  Seonghun LEE ,  Jihyun LEE ,  Jeongkyo SEO

IPC: H02J7/02 ,  H02J50/80 ,  H02J50/40 ,  H02J50/10 ,  H02J50/12

Abstract: A wireless power transmitter which is capable of charging a plurality of wireless power receivers is discussed. The wireless power transmitter includes a plurality of coil cells, a main half-bridge inverter to which a main pulse signal is applied, a plurality of sub half-bridge inverters to which a first sub pulse signal or a second sub pulse signal is applied, at least one current sensor configured to monitor a current, and a communications and control unit configured to control the pulse signals applied to the main half-bridge inverter and sub half-bridge inverters and communicate with the wireless power receivers.

公开(公告)号：US20190058332A1

公开(公告)日：2019-02-21

申请号：US16167094

申请日：2018-10-22

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung LEE ,  Yongcheol PARK ,  Jun LEE

IPC: H02J5/00 ,  H02J50/90 ,  H02J50/80 ,  H02J7/02 ,  H02J7/00 ,  H02J50/12

Abstract: A wireless power transmitter, includes a power conversion unit configured to form a wireless power for power transmission; and a power transmission control unit configured to control the power conversion unit to detect a collision between a first packet generated by a first wireless power receiver and a second packet generated by a second wireless power receiver in a same time slot, and control the power conversion unit to transmit information indicating the collision to the first wireless power receiver and the second wireless power receiver.

公开(公告)号：US20180262057A1

公开(公告)日：2018-09-13

申请号：US15977103

申请日：2018-05-11

Applicant: LG ELECTRONICS INC.

Inventor： Jihyun LEE ,  Hyunbeom LEE ,  Yongcheol PARK ,  Jaesung LEE

IPC: H02J50/12

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J7/042 ,  H02J50/10 ,  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.

公开(公告)号：US20170264341A1

公开(公告)日：2017-09-14

申请号：US15606853

申请日：2017-05-26

Applicant: LG ELECTRONICS INC.

Inventor： Kihyun JUNG ,  Jinmoo PARK ,  Inchang CHU ,  Jeongkyo SEO ,  Jaesung LEE

IPC: H04B5/00

Abstract: A wireless power transmitter for transmitting power by wireless to a terminal includes a power conversion unit and a power transmission control unit. The power conversion unit forms a wireless power signal for wireless power transfer using power supplied from a power supply unit. The power transmission control unit regulates a characteristic of the supplied power, based on orientation information of the terminal. A terminal includes a power receiving unit and a control unit. The power receiving unit receives a wireless power signal formed by a wireless power transmitter. The control unit detects whether or not an orientation of the terminal is changed while the wireless power signal is received, and transmits a control message for power regulation to the wireless power transmitter when the change in the orientation of the terminal is detected.

公开(公告)号：US20170018965A1

公开(公告)日：2017-01-19

申请号：US15123836

申请日：2015-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung LEE ,  Jinmoo PARK ,  Jihyun LEE

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/90 ,  H02J50/60 ,  H02J50/80

CPC classification number: H02J50/10 ,  H02J50/12 ,  H02J50/60 ,  H02J50/70 ,  H02J50/80

Abstract: A wireless power transmission device is disclosed. The wireless power transmission device, which is a medium-power wireless power transmission device that transmits power to a low-power wireless power reception device or a medium-power wireless power reception device, includes: a power conversion unit that converts electrical energy to a power signal; and a communications and control unit that communicates with the wireless power reception device and controls power transfer, the power conversion unit including: an inverter that converts DC input to an AC waveform that drives a resonant circuit; a primary coil that creates a magnetic field; and a current sensor that monitors the current in the primary coil, wherein the inverter operates in a full-bridge mode that drives a plurality of bridges or in a half-bridge mode that drives a single bridge.

Abstract translation: 公开了一种无线电力传输装置。 作为向低功率无线接收装置或中功率无线电力接收装置发送电力的中功率无线电力传输装置的无线电力传输装置包括：电力转换单元，其将电能转换为 功率信号 以及通信控制单元，其与所述无线电力接收装置通信并控制电力传送，所述电力转换单元包括：逆变器，其将DC输入转换为驱动谐振电路的AC波形; 产生磁场的初级线圈; 以及监测初级线圈中的电流的电流传感器，其中逆变器以驱动多个桥的全桥模式或驱动单个桥的半桥模式操作。

公开(公告)号：US20170018954A1

公开(公告)日：2017-01-19

申请号：US15277745

申请日：2016-09-27

Applicant: LG ELECTRONICS INC.

Inventor： Hyunbeom LEE ,  Jaesung LEE ,  Yongcheol PARK ,  Jeongkyo SEO

IPC: H02J7/02 ,  H02J50/12 ,  H02J50/80 ,  H04B5/00

CPC classification number: H02J7/025 ,  H02J50/12 ,  H02J50/80 ,  H04B5/0037 ,  H04B5/0081

Abstract: This specification provides a method for deciding a communication protocol between a wireless power transmitter and a wireless power receiver. To this end, a method for deciding a communication protocol by the wireless power receiver for data transmission or reception with the wireless power transmitter includes transmitting first communication protocol information indicating communication protocols supportable by the wireless power receiver itself to the wireless power transmitter, and deciding a communication protocol for the data transmission or data reception based on second communication protocol information, which indicates communication protocols selected based on the first communication protocol information, when the second communication protocol information is received from the wireless power transmitter.

Abstract translation: 该规范提供了一种用于确定无线电力发射机和无线电力接收机之间的通信协议的方法。 为此，用于通过无线电力接收机确定用于数据发送或接收的无线电力发送器的通信协议的方法包括：向无线电力发送器发送指示由无线电力接收机本身支持的通信协议的第一通信协议信息，并且决定 当从无线电力发射机接收到第二通信协议信息时，基于第二通信协议信息的数据传输或数据接收通信协议，其指示基于第一通信协议信息选择的通信协议。

公开(公告)号：US20140354223A1

公开(公告)日：2014-12-04

申请号：US14293832

申请日：2014-06-02

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung LEE ,  Jinmoo PARK ,  Jeongkyo SEO ,  Jihyun LEE ,  Homan PARK

IPC: H02J5/00 ,  H04B7/24 ,  H02J7/02

CPC classification number: H02J50/12 ,  H01F38/14 ,  H01F2038/146 ,  H02J5/005 ,  H02J7/025 ,  H02J7/04 ,  H02J50/40 ,  H02J50/60 ,  H02J50/70 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037 ,  H04B7/24

Abstract: The present disclosure relates to a wireless power transfer method, a wireless power transmitter and a wireless charging system in a wireless power transfer field. That is, a wireless power transmitter configured to transfer power to a wireless power receiver in a wireless manner includes a power transfer unit configured to transmit power to the wireless power receiver in the wireless manner, a circuit unit having a plurality of capacitors electrically connected to the power transfer unit, and configured to support each of a plurality of frequencies by changing the electric connection of the capacitors, and a controller configured to detect a communication standard that the wireless power receiver supports, and control the electric connection of the capacitors such that the circuit unit operates at a frequency corresponding to the detected communication standard.

Abstract translation: 本公开涉及无线电力传输方法，无线电力发射机和无线电力传输领域中的无线充电系统。 也就是说，被配置为以无线方式向无线电力接收器传送电力的无线电力发送器包括被配置为以无线方式向无线电力接收器发送电力的电力传送单元，电路单元，其具有电连接到 功率传递单元，并且被配置为通过改变电容器的电连接来支持多个频率中的每一个;以及控制器，被配置为检测无线电力接收器支持的通信标准，并且控制电容器的电连接，使得 电路单元以对应于检测到的通信标准的频率运行。

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：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

IPC: H02J50/40 ,  H02J50/12 ,  H02J50/80 ,  H01F38/14 ,  H02J7/02 ,  H02J50/60 ,  H02J50/90 ,  H04B5/00

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.

公开(公告)号：US20190109494A1

公开(公告)日：2019-04-11

申请号：US16215080

申请日：2018-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung LEE ,  Jinmoo PARK ,  Jihyun LEE

IPC: H02J50/10 ,  H02J50/70 ,  H02J50/80 ,  H02J50/12 ,  H02J50/60

Abstract: A wireless power transfer device includes an inverter configured to convert DC input to an AC waveform that drives a resonant circuit, a primary coil configured to generate a magnetic field, a shield material placed below the primary coil, a current sensor configured to monitor current in the primary coil, and a communications and control unit configured to communicate with a wireless power receiver device and control power transfer, wherein the primary coil consists of a single layer of which a number of turns is 12, and consists of 105 strands Litz wire of which the diameter is 0.08 mm, wherein the shield material is at least 1.5 mm thick and extends at least 2.5 mm beyond the outside of the primary coil, and wherein the primary coil and the shield material has a self-inductance 10.0 μH.