公开(公告)号：US20220123604A1

公开(公告)日：2022-04-21

申请号：US17567741

申请日：2022-01-03

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park ,  Gyunghwan Yook

IPC: H02J50/80 ,  H02J50/12

Abstract: A wireless power transmission apparatus including a controller configured to perform a negotiation for a first available power indicator with a wireless power reception apparatus; and a power converter configured to transmit a wireless power to the wireless power reception apparatus according to the first available power indicator. The controller transmits, to the wireless power reception apparatus in response to a received power packet, a bit pattern response requesting a communication by the wireless power transmission apparatus to change the first available power indicator, and transmits a packet related to a second available power indicator to the wireless power reception apparatus. Further, the bit pattern response is composed of 8 bits, and the bit pattern response is defined as a different pattern from a bit pattern for an 8-bit ACK response, an 8-bit NAK response and an 8-bit ND response.

公开(公告)号：US11114898B2

公开(公告)日：2021-09-07

申请号：US16979821

申请日：2019-03-07

Applicant: LG Electronics Inc.

Inventor： Yongcheol Park ,  Gyunghwan Yook

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/20 ,  H02J50/10 ,  H02J50/40

Abstract: The present invention relates to a device and method for supporting improved communication speed in a wireless power transmission system. The present specification provides a method comprising the steps of: generating wireless power at an operating frequency; configuring n, as the number of cycles per bit, which is used for transmitting one bit at the operating frequency; aligning each bit of the data with the n cycles; causing the operating frequency to transition between differential biphases according to the value of said each bit during the n cycles; and transmitting the wireless power to a wireless power receiving device on the basis of magnetic coupling at the transitioning operating frequency.

公开(公告)号：US11108278B2

公开(公告)日：2021-08-31

申请号：US16248590

申请日：2019-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park

IPC: H02J50/80 ,  H02J50/12 ,  H04W52/54 ,  H02J7/02 ,  H04B5/00 ,  H04W56/00 ,  H04W52/48 ,  H04W52/58 ,  H04W72/04

Abstract: A communication method of a wireless power receiver performing communication with a wireless power transmitter, includes transmitting control information to the wireless power transmitter at a time slot in a first cycle; receiving an ACK signal from the wireless power transmitter when the control information is transmitted without collision at the time slot in the first cycle; determining a position of the time slot from among a plurality of time slots within the first cycle in response to the received ACK signal; receiving, in a second cycle, a sync pattern which indicates that the time slot is allocated to the wireless power receiver; and performing communication with the wireless power transmitter using the allocated time slot in the second cycle.

公开(公告)号：US11005307B2

公开(公告)日：2021-05-11

申请号：US15930922

申请日：2020-05-13

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park

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

Abstract: A wireless power transmitter includes 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 transmission or reception of data, wherein the communication/control unit is configured to: receive, from the wireless power receiver after a configuration phase, a received power packet (RPP) which indicates a value of the wireless power received by the wireless power receiver; transmit, to the wireless power receiver, a bit pattern which requests communication initiated by the wireless power transmitter in response to the RPP when the communication/control unit has data to be sent to the wireless power receiver; and receive a packet for polling the data to be sent from the wireless power receiver in response to the bit pattern.

公开(公告)号：US10958109B2

公开(公告)日：2021-03-23

申请号：US16411963

申请日：2019-05-14

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park

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

Abstract: A method in which a power transmitter comprising multi coils transmits wireless power, includes detecting a second power receiver while transmitting power to a first power receiver, determining at least one primary coil appropriate for power transmission, determining whether the second power receiver supports a shared mode protocol using the determined at least one primary coil, and transmitting, if the second power receiver supports a shared mode protocol, power to the first and second power receivers according to the shared mode protocol, wherein the shared mode protocol is a protocol that simultaneously manages information exchange between the power transmitter and a plurality of power receivers.

公开(公告)号：US10862351B2

公开(公告)日：2020-12-08

申请号：US16422610

申请日：2019-05-24

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park

IPC: H02J7/02 ,  H02J50/60 ,  H02J50/80 ,  H02J50/10 ,  H04B5/00 ,  H02J50/40

Abstract: The present invention is related to an apparatus and method for performing communication in a wireless power transfer system. The description discloses a wireless power transmitter including a communication/control unit configured to perform a negotiation for a first available power indicator with a wireless power reception apparatus; and a power conversion unit configured to transmit a wireless power to the wireless power reception apparatus by generating magnetic coupling in a primary coil according to the first available power indicator. The wireless power transmitter provides an effect that a wireless power transmission apparatus is available to obtain status and authority as a master/transmitter depending on a situation, and current ambient situation/environment is reflected in real time.

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：US10651694B2

公开(公告)日：2020-05-12

申请号：US16308325

申请日：2017-06-08

Applicant: LG Electronics Inc.

Inventor： Yongcheol Park

IPC: H02J50/80 ,  H02J50/10 ,  H02J50/60 ,  H02J7/02 ,  H04L5/00 ,  H04B5/00

Abstract: A wireless power transmission method executed by a power transmitter comprising multi-coils, according to one embodiment of the present invention, comprises the steps of: detecting a second power receiver while transmitting power to a first power receiver; determining at least one primary coil adequate for power transmission; by using the determined at least one primary coil, determining whether the second power receiver supports a shared mode protocol; and if the second power receiver supports the shared mode protocol, transmitting power to the first and second power receivers according to the shared mode protocol, wherein the shared mode protocol may be a protocol for simultaneously managing information exchanges between the power transmitter and multiple power receivers.

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.