CONTROL METHOD OF A DC FAN MOTOR

摘要

PURPOSE: A control method of a DC fan motor is provided to maintain the air volume of a fan motor by compensating an RPM change according to an external condition. CONSTITUTION: A control method of a DC fan motor is comprised of the following steps: constructing an air volume compensation table within a deviation range; measuring the RPM of the DC fan motor; comparing the measured RPM of a DC fan motor with a reference RPM; comparing the deviation range of the RPM constructed in the compensation table when a variation is generated; and maintaining the air volume of the DC fan motor.