公开(公告)号：US10359223B2

公开(公告)日：2019-07-23

申请号：US15457439

申请日：2017-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Cheonsu Park ,  Seunghyo Kim ,  Donggi Eom

IPC: F25B49/02 ,  H02P21/22 ,  H02P27/08 ,  H02P29/62 ,  F25B13/00

Abstract: A compressor driving apparatus and an air conditioner including the same, whereby the compressor driving apparatus includes a capacitor connected to a DC terminal, an inverter, including a plurality of three-phase switching devices, to convert DC power from the capacitor into AC power to drive a compressor motor, an output current detector to detect output current flowing in the motor, and a controller to output a switching control signal for controlling the inverter based on the output current, wherein the controller performs control such that some of the three-phase switching devices in the inverter are turned on or off in a compressor preheating mode.

公开(公告)号：US20230236826A1

公开(公告)日：2023-07-27

申请号：US18098789

申请日：2023-01-19

Applicant: LG ELECTRONICS INC.

Inventor： Seunghyo Kim ,  Hakrae Lee

IPC: G06F8/654 ,  G06F11/14

CPC classification number: G06F8/654 ,  G06F11/1433

Abstract: An upgradable electronic device is disclosed. The electronic device includes: a main controller including a single-chip microcomputer including an internal memory and a processing unit; and a communication unit receiving upgrade data from outside the electronic device, wherein, when existing program data stored in a first area of the internal memory has a size less than or equal to a reference size, the processing unit updates the existing program data stored in the first area based on the upgrade data after backing the existing program data up to a second area of the internal memory, the second area being different from the first area.

公开(公告)号：US20170261246A1

公开(公告)日：2017-09-14

申请号：US15457439

申请日：2017-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Cheonsu PARK ,  Seunghyo Kim ,  Donggi Eom

IPC: F25B49/02 ,  H02P21/22 ,  H02P27/08

CPC classification number: F25B49/025 ,  F25B13/00 ,  F25B2500/26 ,  F25B2600/021 ,  F25B2700/151 ,  H02P21/22 ,  H02P27/08 ,  H02P29/62 ,  H02P2203/09 ,  Y02B30/741

Abstract: A compressor driving apparatus and an air conditioner including the same, whereby the compressor driving apparatus includes a capacitor connected to a DC terminal, an inverter, including a plurality of three-phase switching devices, to convert DC power from the capacitor into AC power to drive a compressor motor, an output current detector to detect output current flowing in the motor, and a controller to output a switching control signal for controlling the inverter based on the output current, wherein the controller performs control such that some of the three-phase switching devices in the inverter are turned on or off in a compressor preheating mode.