One infrared burglar alarm circuit

Posted on Mar 28, 2007

Infrared alarm system is the use of infrared LED emits invisible light, when the light is blocked by the body, namely the police. It consists of an infrared light emitting circuit and reception circuit

One infrared burglar alarm circuit
Click here to download the full size of the above Circuit.

(by the infrared light-emitting diode VL, sensitive three-pole tube VTi composition), the switch circuit (composed by the transistor VT2-VTs) and actuators - relay KA composition.

Leave Comment

characters left:

New Circuits



Popular Circuits

Temperature Sensor Project
analog line follower robot
mixer translates multiple standards
cdmp3 cd with cdroom circuit diagram
Fluid level control schematic diagrams
SEISMIC RADIO 500mHz - 200Hz frequency range
Ultrasonic transmitter circuit 555
P228 infrared remote control with production of energy-saving lighting