公开(公告)号：US20240251484A1

公开(公告)日：2024-07-25

申请号：US18684311

申请日：2021-09-06

Applicant: LG ELECTRONICS INC. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY

Inventor： Kyunghoon JUNG ,  Euisung KIM ,  Yangkyeong KIM ,  Raeyoung KIM

IPC: H05B6/06 ,  H02M1/08 ,  H02M7/537 ,  H05B6/12 ,  H05B6/36

CPC classification number: H05B6/062 ,  H02M1/08 ,  H05B6/1209 ,  H05B6/365 ,  H02M7/537

Abstract: The present disclosure is to provide an induction heating type cooktop that minimizes negative voltage formation and ringing in an inverter to which a Wide Band Gab (WBG) element is applied, and includes a top glass on which a cooking vessel is placed, and a cooking vessel for heating the cooking vessel. The induction heating type cooktop may include an inverter including a working coil that generates a magnetic field, at least one switching element driven to flow current in the working coil, and a driving part that drives the switching element, and the composite impedance of the driving part can be varied.

公开(公告)号：US20240098854A1

公开(公告)日：2024-03-21

申请号：US18276506

申请日：2021-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Hyunwook MOON ,  Kyunghoon JUNG ,  Jaewoo LEE ,  Yangkyeong KIM

IPC: H05B6/12

CPC classification number: H05B6/1245

Abstract: An induction heating type cooktop can include first and second working coils configured to generate a magnetic field for heating a cooking container; an inverter configured to supply current to one or more of the first working coil and the second working coil; and first and second resonance capacitors configured to resonate with the first and second working coils. Also, the induction heating type cooktop can further include a switching part configured to selectively direct current through one of the first and second working coils or through both of the first and second working coils based on a type of the cooking container.

公开(公告)号：US20240098852A1

公开(公告)日：2024-03-21

申请号：US18277194

申请日：2021-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghoon JUNG ,  Euisung KlM ,  Hyunwook MOON

IPC: H05B6/06 ,  H05B6/12

CPC classification number: H05B6/062 ,  H05B6/1236 ,  H05B2206/02

Abstract: An induction heating cooktop includes a working coil; an inverter including a plurality of switching elements, the inverter being configured to supply current to the working coil; and a controller configured to adjust a dead time of the inverter by changing a duty cycle of each of the plurality of switching in the inverter.

公开(公告)号：US20210176832A1

公开(公告)日：2021-06-10

申请号：US17116537

申请日：2020-12-09

Applicant: LG Electronics Inc.

Inventor： Dooyong OH ,  Seungbok OK ,  Kyunghoon JUNG ,  Byeongwook PARK

IPC: H05B6/12 ,  G01K7/00 ,  G01R25/00

Abstract: A cooking apparatus includes: a working coil, an inverter including a plurality of switching elements and configured to apply, by operating the plurality of switching elements, a resonant current of a predetermined frequency to the working coil, a phase detector configured to detect a phase difference between the resonant current and a voltage applied to an output terminal of the inverter, and a controller configured to calculate, based on the detected phase difference, a temperature of a target object that is placed above the working coil.

公开(公告)号：US20190271302A1

公开(公告)日：2019-09-05

申请号：US16292859

申请日：2019-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghoon JUNG ,  Sungho PARK

IPC: F04B49/06 ,  F04B39/12

Abstract: The present disclosure relates to a compressor control apparatus and a compressor control method thereof, and more particularly, to a compressor control apparatus for controlling a switching operation of a switching device to control the start-up of a compressor motor and a compressor control method thereof.

公开(公告)号：US20180202430A1

公开(公告)日：2018-07-19

申请号：US15874116

申请日：2018-01-18

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghoon JUNG ,  Gyunam Kim

IPC: F04B49/06 ,  H02K33/00

CPC classification number: F04B49/06 ,  F04B35/045 ,  F04B49/065 ,  F04B2203/0401 ,  F04B2203/0402 ,  H02K33/00 ,  H02K33/02

Abstract: Disclosed is an apparatus for linear compressor which includes a drive unit configured to apply a test signal to the linear compressor, a current detection unit configured to detect a motor current of the linear compressor, a voltage detection unit configured to detect a motor voltage of the linear compressor, and a controller configured to acquire plural inductances varied according to a size of the motor current, based on a change of the motor current and the motor voltage which are acquired according as the test signal is applied.

公开(公告)号：US20160090975A1

公开(公告)日：2016-03-31

申请号：US14867337

申请日：2015-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Gyunam KIM ,  Kyunghoon JUNG ,  Jaeyoo YOO

IPC: F04B35/04 ,  F04B51/00 ,  F04B49/06

CPC classification number: F04B35/04 ,  F04B35/045 ,  F04B49/06 ,  F04B49/065 ,  F04B51/00 ,  F04B2203/0401 ,  F04B2203/0402 ,  H02P25/06

Abstract: An apparatus and method for controlling a linear compressor are provided. The apparatus and method may identify a kind of motor of a linear compressor, based on an output which may be measured by applying a test signal to the linear compressor, and may control the linear compressor depending on the identified kind of motor. The apparatus and method may diagnose whether the linear compressor has broken down, and thus, the kind of motor may be autonomously identified without a separate device or a measurement operation, control suitable for a characteristic or characteristics of the motor may be accurately and efficiently controlled, and maintenance, repair, and inspection of the linear compressor may be simply and easily performed.

Abstract translation: 提供了一种用于控制线性压缩机的装置和方法。 该装置和方法可以基于可以通过将测试信号施加到线性压缩机来测量的输出来识别线性压缩机的一种电动机，并且可以根据所识别的电动机类型来控制线性压缩机。 该装置和方法可以诊断线性压缩机是否已经断裂，因此，可以在没有单独的装置或测量操作的情况下自动识别电动机的种类，可以精确和有效地控制适合于电动机的特性或特性的控制 ，并且可以简单且容易地执行线性压缩机的维护，修理和检查。