公开(公告)号：US20170054394A1

公开(公告)日：2017-02-23

申请号：US15238894

申请日：2016-08-17

Applicant: LG ELECTRONICS INC.

Inventor： Hansu JUNG ,  Hoyong JANG ,  Seokhee CHO

IPC: H02P21/18 ,  H02P6/24 ,  H02P27/06 ,  H02P6/20

CPC classification number: H02P21/18 ,  D06F25/00 ,  H02P3/22 ,  H02P6/20 ,  H02P6/24 ,  H02P27/06

Abstract: Disclosed herein are a motor driving apparatus and a home appliance including the same. The motor driving apparatus includes a direct current (DC) link capacitor, an inverter, a DC link voltage detector, and a controller. The controller controls rheostatic braking to be performed in order to stop the motor, performs bootstrap operation of gate terminals of the upper arm switching elements of the inverter during a first period for starting the motor, and determines whether the motor stops during the first period based on the DC voltage detected by the DC link voltage detector or the output current detected by the output current detector. Accordingly, it is possible to conveniently determine whether the motor stops in the sensorless type motor driving apparatus.

Abstract translation: 这里公开了一种电动机驱动装置和包括其的家用电器。 电动机驱动装置包括直流（DC）连杆电容器，逆变器，直流链路电压检测器和控制器。 控制器控制要进行的变阻器制动以停止电动机，在起动电动机的第一时段期间对变频器的上臂开关元件的栅极端子进行自举操作，并且确定电动机在第一时段期间是否停止 由直流链路电压检测器检测到的直流电压或由输出电流检测器检测到的输出电流。 因此，可以方便地确定电动机是否在无传感器型电动机驱动装置中停止。

公开(公告)号：US20150128661A1

公开(公告)日：2015-05-14

申请号：US14535702

申请日：2014-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Hansu JUNG ,  Soongkeun Lee ,  Minho Jang

IPC: D06F37/30 ,  H02P6/20 ,  D06F33/02

CPC classification number: D06F37/304 ,  D06F33/02 ,  D06F2202/12 ,  D06F2204/10 ,  H02P6/182 ,  Y02B40/52

Abstract: The laundry treatment machine; absent a position sensor to sense a rotor position, includes a driving unit having a DC/AC inverter, an output voltage detection unit to detect output voltage applied to the motor, and an inverter controller to control the inverter to drive the motor based on the output voltage. The output voltage detection unit includes a plurality of resistors electrically connected between the inverter and the motor and a comparator to compare voltage detected by some of the resistors with reference voltage and to detect pulse width modulation (PWM)-based output voltage. Based on the PWM-based output voltage at least one switching device of the inverter is turned on. The output voltage detection unit outputs voltage detected by other some of the resistors to the inverter controller in a second mode in which all switching devices of the inverter are turned off.

Abstract translation: 洗衣机; 没有用于感测转子位置的位置传感器，包括具有DC / AC逆变器的驱动单元，用于检测施加到电动机的输出电压的输出电压检测单元，以及逆变器控制器，用于基于 输出电压。 输出电压检测单元包括电连接在逆变器和电动机之间的多个电阻器和比较器，用于将由一些电阻器检测到的电压与参考电压进行比较，并检测基于脉宽调制（PWM）的输出电压。 基于PWM的输出电压，逆变器的至少一个开关器件导通。 输出电压检测单元将其他一些电阻器检测到的电压以逆变器的所有开关装置关闭的第二模式输出到逆变器控制器。

公开(公告)号：US20150051738A1

公开(公告)日：2015-02-19

申请号：US14458590

申请日：2014-08-13

Applicant: LG Electronics Inc.

Inventor： Hoonbong LEE ,  Chungill LEE ,  Hansu JUNG

IPC: D06F39/00 ,  D06F33/02

CPC classification number: D06F39/003 ,  D06F33/02 ,  D06F2202/10 ,  D06F2202/12 ,  D06F2204/06 ,  D06F2204/08

Abstract: A method may be provided for controlling a laundry treating apparatus. A first speed rotating may control the drum to accelerate the drum to rotate at a first speed, a braking may apply a brake to stop the drum, a second speed accelerating may accelerate the drum to a second speed, a current sensing may sense a current being applied to the motor during the drum is accelerated to the second speed, and a laundry amount determining may determine a laundry amount based on the current sensed in the current sensing.

Abstract translation: 可以提供一种用于控制衣物处理装置的方法。 第一速度旋转可以控制滚筒以加速鼓以第一速度旋转，制动可以施加制动器来停止滚筒，第二速度加速可以将滚筒加速到第二速度，电流感测可以感测到电流 在滚筒期间施加到马达的速度加速到第二速度，并且衣物量确定可以基于在当前感测中感测到的电流来确定衣物量。