Power disconnection alarm circuit diagram

Posted on Nov 10, 2015

Circuit operation principle of the device shown in Figure 13. When the barbed wire Fe intact, LSE's O, feet collusion between its pin output high,

Power disconnection alarm circuit diagram
Click here to download the full size of the above Circuit.

the transistor VT end, the relay J is released, the alarm does not work. If Fe barbed wire was cut (any period), then the LSE O, feet equivalent open, it feet is the original high state to a low state, transistor VT conduction, so that the relay J excitation pull its normally open contact j closure, connected to the alarm circuit power, then alarm.

Leave Comment

characters left:

New Circuits



Popular Circuits

Panner Waveform Generator
Buffered breakout box
remote control receiver circuit
Microprocessor-based home security system
Moisture Sensor Project
siren alarm circuit diagram usng lm358
Automatic LED Emergency Light Circuit
Evaluation Board For Single Supply 12-bit 500 Ksps Adc
audio visual ringer circuit diagram
Pulse Width Modulation
Practical loudness control circuit
High voltage stabilizing circuit diagram composed of optocouplers