Proximity detector

Posted on Jul 9, 2012

The proximity sensor works on the principle of transmitting a beam of modulated infra-red light from the emitter diode LED2, and receiving reflections from objects passing in front of the beam with a photodiode detector Dl

Proximity detector
Click here to download the full size of the above Circuit.

The circuit can be split into three distinct stages; the infra-red transmitter, the photo-diode amplifier, and a variable threshold comparator.

Leave Comment

characters left:

New Circuits



Popular Circuits

Adjustable Auto transformer
sine wave generation with fast pwm mode 2525
Two Simple 24-Hour Timer Circuit Schematics
Bedini SSG
15V TOP224Y 2A DC output switching power supply circuit