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

Remote-Controlled Telephone/Fax Machine Switch
Non inverting audio amplifier
Arduino project
lm12 audio amplifier circuit diagram
Negative Auxiliary Voltage
Module thermometer temperature meter for digital multimeter using the ic lm35



Top