Temperature window overrun alarm circuit MAX6502/4

Published:2011/9/4 21:18:00 Author:TaoXi | Keyword: Temperature window, overrun, alarm circuit | From:SeekIC

The circuit is as shown in the figure, it is composed of the upper limit and lower limit temperature detection circuit, the voice circuit, the audio amplifier circuit and the AC step-down rectifier circuit. The temperature upper limit monitor uses the temperature switching integrated circuit MAX6502 to monitor, it can changes the temperature of the monitored objects into the corresponding electric signals, when the signal voltage exceeds the threshold temperature, the voltage comparator of the switch compares and adjudges the signal, and the monostable trigger outputs the plastic pulse, the push-pull output level outputs the high level control signal.



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