Window comparator


Posted on May 4, 2012

This circuit gives an output (which in this case is OV) when an input voltage lies in between two specified voltages. When it is outside this window, the output is positive. The two op amps are used as voltage comparators. When Vin is more positive than Vref (upper) the output of ICl is positive and D1 is forward biased. Otherwise the output is negative, D1 reverse biased and hence Vout is OV. Similarly, when Vin is more negative than Vref (lower), the output of IC2 is positive; D2 is forward biased and this Vout is positive


Window comparator
Click here to download the full size of the above Circuit.

Otherwise Vout is OV. When Vin lies within the window set by the reference voltages, Vout is OV.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

12dB / Octave Linkwitz Riley Crossover
1.5V Battery FM transmitter
Dual 8051S Execute In Lock-Step
DC Motor Control Circuit
Amplifier Timer
ac TRIAC dimmer circuit design help (resistive load)
hi fi stereo preamplifier circuit
The Autonomous Drifter Circuit
Telephone Ringer
W3HWJ Radio Receiver Projects



Top