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：US20170368945A1

公开(公告)日：2017-12-28

申请号：US15541180

申请日：2016-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Jinmoo PARK ,  Jeongkyo SEO ,  Beomseok CHAE ,  Jaesung LEE ,  Jihyun LEE

IPC: B60L11/18 ,  H02J50/90 ,  H02J50/12 ,  H01F38/14

CPC classification number: H02J50/12 ,  B60L53/12 ,  B60L53/38 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/90 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/14

Abstract: According to an embodiment of present invention, a wireless power transmitter for a vehicle that transfers power to a wireless power receiver includes: 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 driving each of the coils included in the coil assembly individually, wherein the first and second bottom coils and the top coil have a substantially rectangular frame structure with a through hole in the center, the top coil lies on a plane surface in the middle between the first and second bottom coils, and 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 23 mm to 25 mm.

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：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。

公开(公告)号：US20230261696A1

公开(公告)日：2023-08-17

申请号：US18138443

申请日：2023-04-24

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Jaeyeol KIM ,  Joonho PARK ,  Jeongkyo SEO ,  Gyunghwan YOOK ,  Jaesung LEE

IPC: H04B5/00 ,  H02J50/80 ,  H02J7/00 ,  G06F21/44 ,  H04W52/22 ,  H04W52/28 ,  H04W52/34

CPC classification number: H04B5/0037 ,  H02J50/80 ,  H02J7/00045 ,  H02J7/00034 ,  G06F21/445 ,  H04W52/223 ,  H04W52/286 ,  H04W52/34 ,  H02J50/005

Abstract: A method in a wireless power transfer system can include, in response to a digital ping initiated by a wireless power transmitter, transmitting to the wireless power transmitter during a ping phase, a response signal. The method can further include transmitting, to the wireless power transmitter during a configuration phase, a configuration packet including first control information related to whether a wireless power receiver supports an authentication function to authenticate the wireless power transmitter; receiving, from the wireless power transmitter during a negotiation phase, a capability packet including second control information and a potential power value of the wireless power transmitter; and transmitting, to the wireless power transmitter during a power transfer phase, an authentication request message.

公开(公告)号：US20210408838A1

公开(公告)日：2021-12-30

申请号：US16494982

申请日：2018-05-02

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Jaeyeol KIM ,  Joonho PARK ,  Jeongkyo SEO ,  Gyunghwan YOOK ,  Jaesung LEE

IPC: H02J50/80 ,  H02J7/00 ,  G06F21/44

Abstract: The present invention relates to a device and a method for performing authentication in a wireless power transmission system. Disclosed in the present specification is an authentication method in a wireless power transmission system, comprising the steps of: receiving, from a target device, a first packet including indication information related to whether the target device supports an authentication function; transmitting an authentication request message to the target device if the target device supports the authentication function; receiving, from the target device, an authentication response message including a certificate for wireless charging in response to the authentication request message; and confirming the authentication of the target device on the basis of the authentication response message.

公开(公告)号：US20210249907A1

公开(公告)日：2021-08-12

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 ,  H02J50/90

Abstract: A wireless power transmitter that transfers power to a wireless power receiver includes 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; a series capacitance; a shielding extending to at least 2 mm beyond an outer boundary of the coil assembly, has a thickness of at least 1.5 mm and being composed of Mn—Zn; and a full-bridge inverter driving each of coils included in the coil assembly individually.

公开(公告)号：US20200259374A1

公开(公告)日：2020-08-13

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: H02J50/80 ,  H02J50/12 ,  H04B5/00 ,  H04L1/00 ,  H04L27/10

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：US20170294798A1

公开(公告)日：2017-10-12

申请号：US15484728

申请日：2017-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Gyunghwan YUK ,  Jaesung LEE ,  Jaesoon KWON ,  Jinsup PARK ,  Jeongkyo SEO ,  Byungsang JUNG ,  Youngchan CHO

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

CPC classification number: H02J7/025 ,  H01F38/14 ,  H01F2038/143 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037

Abstract: The present relates to a wireless power transmitter performing communication with a wireless power receiver, and a wireless power transfer method thereof. The wireless power transmitter includes a power conversion unit configured to transmit a wireless power signal transferred in a form of an energy field, such as an electric field, a magnetic field or an electromagnetic field, and a power transmission control unit configured to transfer power to the wireless power receiver using the wireless power signal, wherein the power transmission control unit is configured to control the power conversion unit to transmit a near-field communication (NFC) detection signal, other than the wireless power signal, when a preset condition is satisfied, and wherein the power transmission control unit controls the wireless conversion unit in a different manner according to whether or not a response signal to the NFC detection signal is detected.

公开(公告)号：US20160164308A1

公开(公告)日：2016-06-09

申请号：US15047441

申请日：2016-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung LEE ,  Yongcheol PARK ,  Jun LEE

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

CPC classification number: H02J5/005 ,  H02J7/00 ,  H02J7/0013 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80 ,  H02J50/90 ,  H02J2007/0096

Abstract: A wireless power transmitter is provided that includes a power conversion unit configured to form a wireless power signal for power transmission, and a power transmission control unit. The power transmission control unit is configured to control the power conversion unit to receive a first packet from a first wireless power receiver and a second packet from a second wireless power receiver in the same time slot, detect a collision between the first packet and the second packet, and control the power conversion unit to receive at least one of the first packet from the first wireless power receiver and the second packet from the second wireless power receiver in at least one time slot if the collision is detected at the same time slot.

Abstract translation: 提供了一种无线电力发送器，其包括被配置为形成用于电力传输的无线电力信号的电力转换单元和电力传输控制单元。 电力传输控制单元被配置为控制电力转换单元从同一时隙中接收来自第一无线电力接收器的第一分组和来自第二无线功率接收机的第二分组，检测第一分组与第二分组之间的冲突 并且如果在相同的时隙检测到冲突，则控制电力转换单元在至少一个时隙中接收来自第一无线电力接收器的第一分组中的至少一个和来自第二无线功率接收机的第二分组。