Linear light-meter circuit


Posted on Aug 10, 2012

This circuit uses a low-input-bias op amp to give a steady dc indication of light level. To reduce circuit sensitivity to light, Rl can be reduced, but should not be less than 100 K


Linear light-meter circuit
Click here to download the full size of the above Circuit.

The capacitor values in the circuit are chosen to provide a time constant sufficient to filter high-frequency light variations that might arise, for example, from fluorescent lights.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

The ATL-3 Loop Antenna
Atari punk console + Baby sequencer 4017 IC
Transistor inverter circuit 6
led chaser pwm
Simple Water Detector Circuit
Tesla Switch



Top