公开(公告)号：US11296556B2

公开(公告)日：2022-04-05

申请号：US16685874

申请日：2019-11-15

Applicant: LG ELECTRONICS INC.

Inventor： Jihyun Lee ,  Seonghun Lee ,  Bongsik Kwak ,  Joonho Park ,  Sungkyu Kim

IPC: H02J7/00 ,  H02J50/40 ,  H02J7/02 ,  H02J50/10

Abstract: A power relay device includes a power receiver configured to wirelessly receive power of a first class when coupled with a wireless power transmission device, a first power converter configured to convert power supplied from the power receiver into a form appropriate for a first mobile terminal, a second power converter configured to receive power from the first power converter and to convert the power into power of a second class, and a power transmitter configured to wirelessly transmit the power of the second class to a second mobile terminal.

公开(公告)号：US11271436B2

公开(公告)日：2022-03-08

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: H02J50/80 ,  H02J50/12 ,  H01F38/14 ,  H02J50/40 ,  H02J50/60 ,  H02J7/02 ,  H04B5/00 ,  H02J50/90 ,  H04L27/02

Abstract: A multi-coil based wireless power transmission device is disclosed that includes a primary coil array forming a magnetic coupling with a secondary coil provided in a wireless power reception device to transmit wireless power to the wireless power reception device; a plurality of inverters connected to a plurality of primary coils one-to-one to selectively drive each of the plurality of primary coils; a communication and control unit controlling the plurality of inverters and communication with the wireless power reception device such that at least one primary coil is driven based on 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.

公开(公告)号：US11924950B2

公开(公告)日：2024-03-05

申请号：US17261412

申请日：2019-01-04

Applicant: LG ELECTRONICS INC.

Inventor： Seonghun Lee ,  Bongsik Kwak

IPC: H05B6/06 ,  H05B6/04 ,  H05B6/12

CPC classification number: H05B6/062 ,  H05B6/04 ,  H05B6/1236

Abstract: The present specification relates to a cooker, wherein a separate-type cooking module is arranged above a fixed-type cooking module to be charged with power or operated, and when used separately, the separate-type cooking module and the fixed-type cooking module are respectively operated.

公开(公告)号：US11381117B2

公开(公告)日：2022-07-05

申请号：US16797483

申请日：2020-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Hyengcheul Choi ,  Seong Hun Lee ,  Bongsik Kwak ,  Hyung Geol Kwak

IPC: H02J50/50 ,  H02J50/10 ,  H02J50/70 ,  H01F38/14 ,  H02J7/02

Abstract: Disclosed herein is a wireless charging apparatus for preventing cancelation of magnetic fields generated between a plurality of adjacent transmission coils by placing a repeater on the plurality of transmission coils, the wireless charging apparatus including a plurality of transmission coils spaced the same distance apart from a reference point, and a repeater placed on the plurality of transmission coils to be overlapped with each of the plurality of transmission coils with respect to the reference point that is a center, wherein a coupling coefficient between each of the plurality of transmission coils and the repeater is higher than a coupling coefficient between the plurality of transmission coils.

公开(公告)号：US09831030B2

公开(公告)日：2017-11-28

申请号：US14318299

申请日：2014-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Bongsik Kwak ,  Jeongkyo Seo ,  Jeongeon Park

IPC: H02J7/00 ,  H01F27/42 ,  H01F38/14 ,  H02J7/02 ,  H02J5/00

CPC classification number: H01F38/14 ,  H02J7/025 ,  H02J50/10

Abstract: The present disclosure relates to a wireless power transmitter capable of reducing standby power in the wireless power transmitter, and a method thereof, and the wireless power transmitter according to the present disclosure may include a power supply unit configured to supply a voltage; a receiving unit configured to receive a power-on signal or power-off signal from a remote controller; a power transmission controller configured to generate a drive signal to supply power for the operation of the electronic device based on the power-on signal; and a power transmission unit configured to form a wireless power signal based on the supplied voltage and the drive signal to transmit wireless power to the wireless power receiver.

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：US11316380B2

公开(公告)日：2022-04-26

申请号：US17028733

申请日：2020-09-22

Applicant: LG ELECTRONICS INC.

Inventor： Sungkyu Kim ,  Bongsik Kwak ,  Hyunggeol Kwak ,  Seonghun Lee

IPC: H02J50/00 ,  H02J50/40 ,  H02J50/12 ,  H04B5/00

Abstract: A wireless power transmitter can include a power transmitter including a plurality of first transmitting coils and a second transmitting coil; and a controller, in which the plurality of first transmitting coils are disposed on a same plane, the second transmitting coil is disposed on a different plane than the plurality of first transmitting coils, the second transmitting coil is disposed at a center of a region corresponding to the plurality of first transmitting coils, an area of a region corresponding to the second transmitting coil is smaller than an area of the region corresponding to the plurality of first transmitting coils, and the controller is configured to transmit power to a wireless power receiver through the plurality of first transmitting coils and the second transmitting coil when a receiving coil in the wireless power receiver is of a first type, and transmit power to the wireless power receiver through the second transmitting coil when the type of the receiving coil is of a second type.

公开(公告)号：US11108280B2

公开(公告)日：2021-08-31

申请号：US16859519

申请日：2020-04-27

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A communication method of a wireless power receiver for receiving power in a wireless manner, includes generating information of the wireless power receiver based on a load modulation within a slot being allocated to the wireless power receiver while wireless power is received from a wireless power transmitter; receiving the wireless power from to the wireless power transmitter; generating first information of the wireless power receiver based on the load modulation within a first unallocated slot among the plurality of slots, wherein the first information is in collision with second information generated by another wireless power receiver; demodulating a collision related signal of the wireless power transmitter based on a frequency shift keying (FSK); and executing a collision resolution mechanism.

公开(公告)号：US10673286B2

公开(公告)日：2020-06-02

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

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：US10164482B2

公开(公告)日：2018-12-25

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

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.