MOTOR LOCK ERROR JUDGMENT METHOD USING CURRENT MAGNITUDE OF WASHING MACHINE

摘要

The method involves arranging a sensorless motor to a preset position, and measuring a current applied to the sensorless motor. A difference between the measured current with a preset reference current is calculated. The presence of a motor lock error in the sensorless motor is determined, if the calculated difference is equal to or higher than a preset reference difference. The motor is controlled to be normally operated. An independent claim is also included for a motor lock error presence determining apparatus in a sensorless motor, comprising a rectifier unit for receiving an alternate current (AC) voltage from an alternate current (AC) power source.