LOW VOLTAGE ALARM DEVICE OF RADIO PAGER

摘要

a battery supplies the action source; a tone generator which generates the tone signal of the low voltage alarm; a low voltage detection part which generates the detection signal when the voltage of the battery is lower than the reference voltage by comparing the voltage level of the battery with reference voltage; an alarm activation part which outputs the low voltage alarm activating signal using the buzzer from the output of the tone generator after connecting the path of the battery with the buzzer.