公开(公告)号：US12173444B2

公开(公告)日：2024-12-24

申请号：US17912411

申请日：2021-03-16

Applicant: LG Electronics Inc. ,  Seoul National University R&DB Foundation

Inventor： Taewoong Kong ,  Chaseung Jun ,  Sangwook Hong ,  Seungki Sul ,  Joohyun Lee ,  Hwigon Kim

IPC: D06F34/14 ,  D06F23/02 ,  D06F37/06 ,  D06F37/26 ,  D06F39/04 ,  F26B3/20 ,  G01K7/36 ,  H01F7/02 ,  H01F7/20 ,  H05B6/10

Abstract: Disclosed is a clothes treatment apparatus. The clothes treatment apparatus of the present disclosure may comprise: a cabinet; a drum rotatably provided in the cabinet; an induction heater which is disposed outside the drum and heats the drum; a magnet which is fixed to the drum and of which a residual magnetic flux density changes depending on temperature; and a coil fixed to the outside of the drum and disposed at a position overlapping the magnet in the longitudinal direction of the central axis of rotation of the drum.

公开(公告)号：US12301129B2

公开(公告)日：2025-05-13

申请号：US17909245

申请日：2021-03-03

Applicant: LG ELECTRONICS INC.

Inventor： Sangchul Han ,  Chaseung Jun ,  Sangju Lee ,  Taewoong Kong ,  Hyojin Choi ,  Jinwoo Park

IPC: H02M7/48 ,  H02M1/00 ,  H02M7/483 ,  H02M7/487 ,  H05B6/04 ,  H05B6/06

Abstract: The present disclosure relates to a power converting device and a home appliance including the same. A power converting device according to an embodiment of the present disclosure comprises a first capacitor, a first switching element turned on to output a first voltage stored in the first capacitor to a first node which is one end of an inductive load, a second switching element, one end of which is connected to the first switching element and which is turned on to decrease the voltage of the first node to the first voltage, a third switching element turned on to output a second voltage greater than the first voltage to the first node which is one end of the inductive load, and a fourth switching element, one end of which is connected to the third switching element and which is turned on to decrease the voltage of the first node to the ground voltage. Accordingly, switching loss may be reduced when power is supplied to an inductive load.

公开(公告)号：US10973091B2

公开(公告)日：2021-04-06

申请号：US16054372

申请日：2018-08-03

Applicant: LG Electronics Inc.

Inventor： Seongho Son ,  Taewoong Kong ,  Younghwan Kwack ,  Jaekyung Yang ,  Yongsoo Lee ,  Hyojin Choi

IPC: H05B6/06 ,  H05B6/08 ,  H05B6/04 ,  F24C7/06 ,  F24C7/08 ,  H05B6/12

Abstract: Disclosed herein is an induction heat cooking apparatus including a power supply configured to supply an alternating current (AC) voltage, a rectifier configured to rectify the supplied AC voltage into a direct current (DC) voltage, first and second switching units configured to control switching such that the DC voltage from the rectifier is alternately applied to a working coil, a comparison unit configured to sense current flowing in the working coil and to compare the sensed current with a predetermined reference value to output pulses, and a controller configured to determine whether a cooking vessel is present on the working coil based on the output pulses.