公开(公告)号：US11811341B2

公开(公告)日：2023-11-07

申请号：US16768156

申请日：2018-11-27

Applicant: LG Electronics Inc.

Inventor： Kyungtae Park ,  Dongwook Kim ,  Sunil Lee

IPC: H02P21/36 ,  D06F37/40 ,  H02P3/18 ,  H02P27/06 ,  D06F34/10 ,  D06F103/00 ,  D06F103/46 ,  D06F105/52 ,  D06F34/08

CPC classification number: H02P21/36 ,  D06F34/10 ,  D06F37/40 ,  H02P3/18 ,  H02P27/06 ,  D06F34/08 ,  D06F2103/00 ,  D06F2103/46 ,  D06F2105/52

Abstract: A home appliance having a motor includes: an inverter unit; and an inverter control unit for controlling a switching operation of the inverter unit, wherein the inverter control unit generates a braking command for braking the motor, on the basis of an operating mode of the home appliance, and controls the inverter unit to stop the motor when a preset braking time elapses after the braking command is generated, and to execute a first braking mode in which the rotational speed of the motor is reduced in a state where no current flows in the inverter control unit, and then to execute at least one of a second braking mode and a third braking mode in which the rotational speed of the motor is reduced in a state where a current flows in the inverter control unit.