公开(公告)号：US11626758B2

公开(公告)日：2023-04-11

申请号：US17244562

申请日：2021-04-29

Applicant: LG ELECTRONICS INC.

Inventor： Jinmoo Park ,  Jeongkyo Seo ,  Beomseok Chae ,  Jaesung Lee ,  Jihyun Lee

IPC: H02J50/12 ,  H01F38/14 ,  B60L53/38 ,  B60L53/122 ,  B60L53/124 ,  B60L53/126 ,  H02J7/00 ,  H02J50/90

Abstract: A wireless power transmitter configured to transfer power to a wireless power receiver, including a coil assembly comprising first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom coils and consisting of a single layer of 12 turns; and a full-bridge inverter. The first and second bottom coils and the top coil have a substantially rectangular frame structure with a through hole in the center, wherein the top coil lies on a plane surface in the middle between the first and second bottom coils, a distance from the center of the first and second bottom coils to the center of the top coil is set to a range of 21 mm to 25 mm, the first and second bottom coils have a height of 48 mm to 50 mm and a width of 43 mm to 45 mm, and the through hole in the first and second bottom coils has a height of 25 mm to 27 mm and a width of 21 mm to 23 mm, the top coil has a height of 45 mm to 47 mm and a width of 48.5 mm to 50.5 mm, and the through hole in the top coil has a height of 20 mm to 22 mm and a width of 24.5 mm to 26.5 mm, the first and second bottom coils and the top coil have a thickness of 0.9 mm to 1.3 mm, the wireless power transmitter uses an input voltage of the full-bridge inverter to control an amount of power which is transferred, the input voltage has a range of 1 V to 18 V, wherein an operating frequency to control the amount of the power is within a range of 140 kHz to 150 kHz, and the first and second bottom coils and the top coil have a inductance value within a range of 10.6 μH to 12.0 μH.

公开(公告)号：US10804729B2

公开(公告)日：2020-10-13

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 ,  H02J50/10 ,  H02J50/40 ,  H02J50/80 ,  H02J50/12 ,  H02J50/90 ,  H02J50/60

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：US10700530B2

公开(公告)日：2020-06-30

申请号：US16167094

申请日：2018-10-22

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung Lee ,  Yongcheol Park ,  Jun Lee

IPC: G01S1/00 ,  G08B1/08 ,  H04B7/185 ,  H02J5/00 ,  H02J50/80 ,  H02J50/90 ,  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：US10411517B2

公开(公告)日：2019-09-10

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 ,  H01F38/14 ,  H02J50/90 ,  H02J50/10 ,  H02J7/00 ,  H02J5/00 ,  H02J7/04 ,  H02J50/80 ,  H02J7/02 ,  H04B5/00

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：US09397505B2

公开(公告)日：2016-07-19

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: H02J7/02 ,  H02J5/00 ,  H04B7/24 ,  H04B5/00 ,  H02J7/04 ,  H01F38/14

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。