公开(公告)号：US20240372415A1

公开(公告)日：2024-11-07

申请号：US18687171

申请日：2022-08-31

Applicant: LG ELECTRONICS INC.

Inventor： Jinho YOUN ,  Jonggu KIM

IPC: H02J50/80 ,  H02J50/12 ,  H04B5/79

Abstract: The present disclosure provides a method for transferring wireless power, performed by a wireless power transmitter in a wireless power transmission system, and an apparatus using same, the method being characterized by: entering a power transfer phase related to transferring the wireless power; and receiving a first near field communication (NFC) signal from a wireless power receiver on a slot during the power transfer phase, wherein the slot is a duration in which a power signal has decreased or a duration in which an operation frequency has increased.

公开(公告)号：US20220158493A1

公开(公告)日：2022-05-19

申请号：US17593261

申请日：2020-03-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyengcheul CHOI ,  Bongsik KWAK ,  Hyunggeol KWAK ,  Sungkyu KIM ,  Jonggu KIM ,  Jinhong KIM ,  Sooyong PARK ,  Yongcheol PARK ,  Joonho PARK ,  Seonghun LEE

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

Abstract: The present specification relates to a wireless power receiving device, receiving method, and receiving system, the device comprising individual rectifiers for each receiving coil, wherein the individual rectifiers comprise isolators for isolating a receiving coil for PC0 from a receiving coil for PC1.

公开(公告)号：US20240297536A1

公开(公告)日：2024-09-05

申请号：US18280895

申请日：2021-03-09

Applicant: LG ELECTRONICS INC.

Inventor： Hyoungseok KIM ,  Jonggu KIM ,  Seonghun LEE ,  Jaeyeol KIM

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

CPC classification number: H02J50/90 ,  H02J50/12 ,  H02J50/402 ,  H02J50/80

Abstract: The present invention relates to a wireless power transmission device and a wireless power system comprising same. The wireless power transmission device and wireless power system comprising same, according to one embodiment of the present invention, comprise: a coil assembly including a plurality of coils; a first resonant capacitor connected to a first group of the plurality of coils; and a second resonant capacitor connected to a second group of the plurality of coils, and connected in parallel to the first resonant capacitor, wherein the number of groups of the plurality of coils is smaller than the number of the plurality of coils. Accordingly, a circuit for the selection and operation of at least some of the plurality of coils can be simply implemented, and charging can be quickly entered.