Motorantriebsvorrichtung und Wäschebehandlungsmaschine damit

Details

Veröffentlichungs-Nr.

EP2871275

Aktenzeichen

EP14192284

Anmeldetag

7. November 2014

Veröffentlichung

17. August 2022

Erteilung

17. August 2022

Rechtsraum

EP

IPC

D06F37/30

Abstract

A motor driving apparatus and a laundry treatment machine including the same are disclosed. The laundry treatment machine includes a washing tub, a motor to rotate the washing tub, and a driving unit to drive the motor, wherein the driving unit includes an inverter to convert direct current (DC) voltage into alternating current (AC) voltage and to output the AC voltage to the motor, 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 and wherein the output voltage detection unit includes a resistor electrically connected between the inverter and the motor and a comparator to compare voltage detected by the resistor with reference voltage and to detect pulse width modulation (PWM)-based output voltage. In a sensorless laundry treatment machine which does not have a position sensor to sense the rotor position of the motor, therefore, it is possible to efficiently detect voltage applied to the motor.

Anmelder

Firmen

LG Electronics Inc.
Seoul National University R&DB Foundation

Land

🇰🇷 Südkorea

Fachgebiete