公开(公告)号：US20240335080A1

公开(公告)日：2024-10-10

申请号：US18579101

申请日：2022-07-07

Applicant: LG ELECTRONICS INC.

Inventor： Suuk CHOE ,  Kyeongtae KIM

IPC: A47L11/40

CPC classification number: A47L11/4011 ,  A47L11/4008 ,  A47L2201/04

Abstract: The present invention relates to a mobile robot which, if an impact sensing signal is input, estimates a virtual wall-registerable area including a plurality of cells on the basis of the position where the impact sensing signal is input, and registers one of the plurality of cells in the virtual wall-registerable area as a virtual wall on the map according to registration priority.

公开(公告)号：US20180191286A1

公开(公告)日：2018-07-05

申请号：US15858777

申请日：2017-12-29

Applicant: LG ELECTRONICS INC.

Inventor： Donggeun LEE ,  Kyeongtae KIM ,  Jeongeon OH

IPC: H02P23/26 ,  H02P27/08

CPC classification number: H02P23/26 ,  H02M1/12 ,  H02M1/4216 ,  H02M1/425 ,  H02M2001/0022 ,  H02M2001/0025 ,  H02P27/08 ,  Y02B70/126

Abstract: Provided are a motor control device and a method for controlling a motor control device. Harmonics of an input current may be reduced by adjusting an output of an inverter.

公开(公告)号：US20180367024A1

公开(公告)日：2018-12-20

申请号：US15739925

申请日：2016-06-24

Applicant: LG ELECTRONICS INC.

Inventor： Kyeongtae KIM ,  Yonghwa LEE ,  Jeongeon OH

IPC: H02M1/12 ,  H02M3/07 ,  H02M5/451 ,  H02M1/14

CPC classification number: H02M1/12 ,  F24F11/88 ,  F24F11/89 ,  H01F30/12 ,  H02M1/143 ,  H02M1/15 ,  H02M1/4225 ,  H02M3/07 ,  H02M5/451 ,  H02M5/458 ,  H02M7/48 ,  H02M7/5395 ,  H02M2001/0009 ,  H02M2001/007 ,  H02M2003/1566 ,  H02M2003/1586

Abstract: The present invention relates to a power conversion device and an air conditioner comprising the same. The power conversion device according to one embodiment of the present invention comprises: a rectification unit for rectifying input alternating current power; a boost converter for boosting power rectified from the rectification unit and outputting the same; a dc-end capacitor connected to an output end of the boost converter; an inductor current detection unit for detecting an inductor current flowing in an inductor within the boost converter; a dc-end voltage detection unit for detecting voltages of both ends of the dc-end capacitor; and a control unit for controlling the boost converter, wherein the control unit generates and outputs a converter switching control signal by performing proportional resonant control for a duty command value of a switching element within the boost converter, on the basis of the detected inductor current and dc-end voltage. Therefore, a harmonic current component flowing through a dc-end capacitor induced by a ripple component of an input voltage can be reduced.