The multiple alarm circuit

Published:2011/6/23 21:41:00 Author:Seven | Keyword: multiple alarm | From:SeekIC

In the figure is the multiple alarm circuit. The circuit consists of the CA3094 integrated circuit, sensing wire, diode and power supply, etc. The figure in the dotted line frame of the circuit is the alarm switch. In the normal condition, the chip CA3094 6-pin is in a high LEV and the alarm is silent. When one of the sensing wire is broken, short or touch the earth, the 6-pin of the chip will be in a low LEV, so the alarm indicator is pushed to work. The circuit can alarm under conditions of broken circuit, short circuit and ground connection, etc.



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