公开(公告)号：US20160064997A1

公开(公告)日：2016-03-03

申请号：US14570875

申请日：2014-12-15

Applicant: HYUNDAI MOTOR COMPANY ,  Kia Motors Corporation ,  LG INNOTEK CO., LTD.

Inventor： Nam Woong HUR ,  Sin Gu KIM ,  Seul Ki JEON ,  Jeong Nam SON ,  Woo Kil JUNG ,  Yun Bok LEE ,  Yong Suk CHAE

IPC: H02J7/04 ,  H04B5/00 ,  H02J7/02

CPC classification number: H02J7/04 ,  H02J7/007 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80 ,  H02J2007/0096 ,  H02J2007/0098 ,  H04B5/0037 ,  H04B5/0081

Abstract: A wireless charging system for a variable charging mode includes: an information receiver configured to receive information about a wireless power receiver including a wireless charging mode that is supported by the wireless power receiver through a wireless communication connected to the wireless power receiver; wireless power transmitting units configured to wirelessly transmit power by a plurality of different wireless charging modes; and a controller configured to control the wireless power transmitting units to wireless transmit power by the wireless charging mode corresponding to the received information.

Abstract translation: 一种用于可变充电模式的无线充电系统包括：信息接收器，被配置为通过连接到无线电力接收器的无线通信来接收包括由无线电力接收器支持的无线充电模式的无线电力接收器的信息; 无线电力发送单元，被配置为通过多种不同的无线充电模式无线发送功率; 以及控制器，被配置为通过与所接收的信息相对应的无线充电模式来控制无线电力发送单元的无线发送功率。

公开(公告)号：US20210194296A1

公开(公告)日：2021-06-24

申请号：US16076079

申请日：2017-02-02

Applicant: LG INNOTEK CO., LTD.

Inventor： Min Young JO ,  Jong Heon LEE ,  Yong Suk CHAE

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

Abstract: The present invention relates to a wireless charging method and apparatus and system therefor. A wireless power transmission apparatus for wirelessly transmitting power to a wireless power receiving apparatus according to one embodiment of the present invention comprises: a power transmission unit for sending a power signal through a transmission coil; a power conversion unit for converting an intensity of the power applied from the outside and transferring the converted power to the power transmission unit; a communication unit for receiving a packet from the wireless power receiving apparatus; and a control unit for controlling power on the basis of a control error value received through the communication unit, wherein, when an unexpected packet is received in a power transmission stage, the control unit may control power by applying a predetermined offset to the control error value. Thus, the present invention has an advantage of being able to minimize the interruption of wireless charging.

公开(公告)号：US20190356175A1

公开(公告)日：2019-11-21

申请号：US16077184

申请日：2017-02-02

Applicant: LG INNOTEK CO., LTD.

Inventor： Min Young JO ,  Jong Heon LEE ,  Yong Suk CHAE

IPC: H02J50/40 ,  H02J50/90 ,  H02J50/10

Abstract: A wireless power transmitter having a plurality of transmission coils is disclosed. The present transmitter comprises: first to Nth coils; and a control unit for transmitting, to a wireless power receiver, a first sensing signal through the first to Nth coils, and adjusting transmission orders of the first to Nth coils for transmitting a second sensing signal, on the basis of the signal strength of a received first signal strength indicator when the first signal strength indicator corresponding to the first sensing signal is received, wherein the control unit can transmit, to the receiver, the second sensing signal through the first to Nth coils on the basis of the adjusted transmission orders. Therefore, device efficiency and user convenience can be improved.

公开(公告)号：US20190296590A1

公开(公告)日：2019-09-26

申请号：US16434005

申请日：2019-06-06

Applicant: LG INNOTEK CO., LTD.

Inventor： Yong Suk CHAE

IPC: H02J50/60 ,  H02J50/90 ,  H02J50/12

Abstract: A method for detecting a foreign object in a wireless power transmitter, which wirelessly transmits power to a wireless power receiver through a resonant circuit comprised therein, according to one embodiment of the present invention may comprise the steps of: measuring the strength of power transmitted through the resonant circuit in a power transmission step; receiving, from the wireless power receiver, a feedback packet comprising information on a receive power strength; determining whether the information on the receive power strength is normal; when it is determined that a received power strength corresponding to the information on the receive power strength is abnormal, correcting the received power strength by applying a predetermined offset thereto; calculating a path loss on the basis of the measured strength of the transmitted power and the corrected received power strength; and detecting a foreign object by comparing the calculated path loss with a path loss threshold.

公开(公告)号：US20170356950A1

公开(公告)日：2017-12-14

申请号：US15543720

申请日：2016-01-05

Applicant: LG INNOTEK CO., LTD.

Inventor： Yong Suk CHAE

IPC: G01R31/02 ,  H02J5/00 ,  H01F38/14

CPC classification number: G01R31/027 ,  B60L53/12 ,  G01R31/024 ,  H01F38/14 ,  H02J5/005 ,  H02J50/10 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/122 ,  Y02T90/14

Abstract: Provided is an apparatus for determining an abnormal status of a wireless power transmission coil, the apparatus including an input-current sensor configured to detect an input current and provided at an input side of a power transmission coil, an output-current sensor configured to detect an output current and provided at an output side of the transmission coil, and a controller configured to compare each of the input current and the output current with a predetermined threshold value corresponding thereto to determine whether a disconnection or a short circuit occurs in the transmission coil.

公开(公告)号：US20170201945A1

公开(公告)日：2017-07-13

申请号：US15327946

申请日：2015-07-21

Applicant: LG INNOTEK CO., LTD.

Inventor： Yong Suk CHAE ,  Soo Young PARK ,  Jong Heon LEE

IPC: H04W52/02 ,  H04W4/00 ,  H04W76/04 ,  H04B5/00

CPC classification number: H04W52/0258 ,  H02J50/12 ,  H04B1/02 ,  H04B5/0031 ,  H04B5/0037 ,  H04W4/80 ,  H04W76/27 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/42

Abstract: Disclosed herein is a transmitting apparatus for both wireless charging and short range communication. According to an embodiment, the transmitting apparatus for both wireless charging and short range communication includes a power transmitter configured to wirelessly transmit power to a power receiver, a communication transmitter configured to wirelessly transmit information to a communication receiver, and a controller configured to control the transmitting apparatus to be selectively switched between a first mode in which the power transmitter is enabled and the communication transmitter is disabled and a second mode in which the communication transmitter is enabled and the power transmitter is disabled. The controller may switch to the first mode when the power receiver is sensed, and may switch to the second mode when the communication receiver is sensed. According to an embodiment of the present invention, a power receiver or a communication receiver is sensed and then a power transmitter or a communication transmitter corresponding thereto is selectively operated so that a communication error that occurs when the power transmitter and the communication transmitter are simultaneously operated is prevented and an unnecessary waste of power is reduced.