公开(公告)号：US11070097B2

公开(公告)日：2021-07-20

申请号：US16992862

申请日：2020-08-13

Applicant: LG Electronics Inc.

Inventor： Yongcheol Park

IPC: H02J50/80 ,  H02J50/12 ,  H04B5/00 ,  H02J50/40

Abstract: The present invention relates to a device and a method for transmitting or receiving data in a wireless power transmission system. The present specification discloses a wireless power reception device comprising: a power pickup unit configured to receive, from a wireless power transmission device, wireless power generated on the basis of magnetic coupling in a power transmission phase; and a communication/control unit configured to receive, from the wireless power transmission device, information on a first buffer size indicating the size of a first buffer for receiving a data transmission stream. As the buffer size for exchanging the data transmission stream between the wireless power transmission device and reception device becomes clear, wireless power transmission and communication can proceed smoothly.

公开(公告)号：US10886973B2

公开(公告)日：2021-01-05

申请号：US16905298

申请日：2020-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park

IPC: H04B5/00 ,  H02J50/80 ,  H02J50/12 ,  H04W12/06

Abstract: Provided are a wireless power transmitter including a power conversion unit configured to transfer wireless power to a wireless power receiver by forming magnetic coupling with the wireless power receiver; and a communication/control unit configured to communicate with the wireless power receiver to control transmission of the wireless power and to perform application level data communication, wherein the communication/control unit transmits or receives data stream comprising sequence of data packets carrying the application level data based on application level data transport stream, wherein the data stream comprises an auxiliary data control packet at the end of the data stream.

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：US10256666B2

公开(公告)日：2019-04-09

申请号：US15101826

申请日：2015-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Byungsang Jung ,  Hyunbeom Lee ,  Seonghun Lee ,  Yongcheol Park

IPC: H02J50/12 ,  H02J7/02 ,  H02J7/04

Abstract: The present disclosure relates to a wireless power reception method, a wireless power reception apparatus, and a wireless charging system in a wireless power transmission and reception field, and the wireless power reception apparatus may include a power receiving unit configured to change a magnetic flux to a current to receive power in a wireless manner, and a power controller connected to the power receiving unit to change a resonant frequency to control power received from the power receiving unit, wherein the power controller includes a first capacitor, a second capacitor connected to the first capacitor in parallel, a first switch connected to the second capacitor in series to flow a current in a first direction, a second switch configured to flow a current in a second direction opposite to the first direction, and a switch controller configured to control the first and the second switch.

公开(公告)号：US10177592B2

公开(公告)日：2019-01-08

申请号：US15303413

申请日：2015-04-10

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park ,  Hyunbeom Lee ,  Jaesung Lee ,  Byungsang Jung ,  Jinmoo Park ,  Seonghun Lee ,  Jihyun Lee ,  Jeongkyo Seo

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J7/02 ,  H02J17/00 ,  H02J50/80 ,  H02J50/90 ,  H02J50/12 ,  H02J50/60 ,  H02J50/10 ,  H02J50/40

Abstract: A wireless power transmitter is disclosed. The wireless power transmitter, which is capable of charging a plurality of wireless power receivers, 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 second sub pulse signal is applied; a current sensor that monitors the current through the coil cells; and a communications and control unit that controls the pulse signals applied to the main half-bridge inverter and sub half-bridge inverters and that communicates with the wireless power receivers, wherein the sub half-bridge inverters may be respectively connected to the coil cells.

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.

公开(公告)号：US10079513B2

公开(公告)日：2018-09-18

申请号：US15325367

申请日：2015-06-29

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park ,  Hyunbeom Lee

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

Abstract: The present disclosure relates to a wireless power transfer method, a wireless power transfer apparatus, and a wireless charging system in a wireless power transfer field, and there is provided a communication method of a wireless power transmitter performing communication with at least one wireless power receiver through a plurality of slots, and the method may include allocating any one of the plurality of slots to any one of the at least one wireless power receiver, providing at least one of the plurality of slots to the any one wireless power receiver as locked slots subsequent to the allocation, and receiving information associated with a configuration phase and information associated with a negotiation phase from the any one wireless power receiver within the locked slots.

公开(公告)号：US09997951B2

公开(公告)日：2018-06-12

申请号：US15018946

申请日：2016-02-09

Applicant: LG ELECTRONICS INC.

Inventor： Jihyun Lee ,  Hyunbeom Lee ,  Yongcheol Park ,  Jaesung Lee

IPC: H02J7/02 ,  H01F38/14 ,  H02J17/00 ,  H02J7/04 ,  H02J50/12 ,  H02J50/90 ,  H02J50/10 ,  H02J50/80 ,  H02J5/00 ,  H04B5/00

CPC classification number: H02J7/025 ,  H01F38/14 ,  H02J5/005 ,  H02J7/042 ,  H02J17/00 ,  H02J50/10 ,  H02J50/12 ,  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：US12244365B2

公开(公告)日：2025-03-04

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: H02J50/80 ,  G06F21/44 ,  H02J7/00 ,  H04B5/79 ,  H04W52/22 ,  H04W52/28 ,  H04W52/34 ,  H02J50/00 ,  H02J50/10 ,  H02J50/12 ,  H02J50/40 ,  H02J50/50 ,  H02J50/60

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：US12160116B2

公开(公告)日：2024-12-03

申请号：US18083098

申请日：2022-12-16

Applicant: LG Electronics Inc.

Inventor： Yongcheol Park

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/60 ,  H02J50/80 ,  H02J50/40 ,  H04B5/00 ,  H04B5/79

Abstract: A wireless power receiver comprises: a power pickup circuit for receiving wireless power from a wireless power transmitter on the basis of a magnetic coupling with the wireless power transmitter, and converting an alternating current signal generated by the wireless power into a direct current signal; and a communication/control circuit for communicating with the wireless power transmitter and controlling the wireless power that is received, wherein the communication/control circuit transmits, to the wireless power transmitter, an end power transfer packet for detecting a foreign object in a primary power transfer step of receiving the wireless power so as to enable the wireless power transmitter to detect the foreign object, receives a ping signal from the wireless power transmitter which has estimated that no foreign object is present, and transmits a data packet, in response to the ping signal, for entering a secondary power transfer step.