Ir Reflection Proximity Switch


Posted on Feb 25, 2013

IR radiation from LED2 (modulated by a 1-kHz wave) is keyed by Ul, and Ql is radiated. Reflected IR energy i


Ir Reflection Proximity Switch
Click here to download the full size of the above Circuit.

s picked up by Q3, and the audio signal from Q3 is amplified by Q2 and sent to the decoder. The LED1 lights to indicate presence of reflected IR. LED1 can be the input of an isolator so that a triac or SCR can be controlled.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Whistle Switch Circuit
two servo walking robot using TI launchpad
the remote intellectual pronunciation anti-theft alarm system design of the one-chip computer
Dummy Alarm Project
wireless fm transmitter
model railway short circuit
HT7070A Voltage Detector
yamaha dspa 1 processor
Video by MAX4102 4103 RF distribution amplifier circuit diagram



Top