METHOD FOR CONTROLLING OPERATION ALARM OF AIR CONDITIONER

摘要

PURPOSE: A control method of an operation alarm for an air conditioner is provided to output melody by pulse width modulating sound generated in turning on and off a buzzer of the alarm, and to alarm the operating state of the air conditioner with melody. CONSTITUTION: A melody sound is output from a microcomputer with pulse width modulation in starting an air conditioner. The frequency is set to output the sound according to musical scales by operating a buzzer. A control signal is generated with each frequency. The frequency is output corresponding to the melody in operating the buzzer to output melody, and the pause is set for keeping time in turning off. The melody sound is output through the buzzer during operating the air conditioner. The operating sound is pulse width modulated to the melody in turning on and off the buzzer. The melody sound is output from the microcomputer to alarm the operating state of the air conditioner.