Optical schmitt trigger


Posted on Sep 2, 2012

This circuit shows a 555 with its trigger and threshold inputs connected together used to energize a relay when the light level on a photoconductive cell falls below a preset value


Optical schmitt trigger
Click here to download the full size of the above Circuit.

Circuit can be used in other applications where a high input impedance and low output impedance are required with the minimum component count.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

VGA to TV converter II
Sensitive field-strength meter
Classic-op-amp-astable-multivibrator
Simple Temperature Indicator
Stereo OTL Audio Amplifier
Programming Cable for Kenwood
accelerometer amplifier circuit
Vincent Motorcycle Electrics



Top