公开(公告)号：US20190069405A1

公开(公告)日：2019-02-28

申请号：US16103054

申请日：2018-08-14

Applicant: LG ELECTRONICS INC.

Inventor： Sunil LEE

IPC: H05K1/11 ,  H05K1/18

Abstract: Disclosed is a composite printed circuit board including a first printed circuit board (PCB) having a first circuit pattern mounted thereon, and a second PCB having a second circuit pattern mounted thereon, and the first PCB penetrates and is coupled to the second PCB so that the first circuit pattern is electrically connected to the second circuit pattern.

公开(公告)号：US20200318279A1

公开(公告)日：2020-10-08

申请号：US16768156

申请日：2018-11-27

Applicant: LG Electronics Inc.

Inventor： Kyungtae PARK ,  Dongwook KIM ,  Sunil LEE

IPC: D06F58/08 ,  D06F37/30 ,  D06F37/40 ,  H02P3/18 ,  H02P27/06

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.