electrical equipment overheating "brakes" voice alarming circuit

Published:2011/7/2 2:00:00 Author:John | Keyword: electrical equipment | From:SeekIC

The figure shows the electrical equipment analog voice alarming circuit. It consists of overheating electronic switch, controlled multi-vibrator, analog voice circuits, audio amplifier circuit and AC buck rectifier circuit. The controlled multi-vibrator consists of 555, R2, R3 and Cl and so on. Its multivibrator frequency is that the icon parameter oscillation period To (= 1/fo) is equal to 10s.



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