Window-comparator


Posted on Mar 18, 2013

This window comparator generates an output pulse for each event that occurs within a specified window. That is, each output pulse signifies an input voltage pulse or level change that exceeds VREFLOW. but not VREFHIGH· The monostable multivibrators, IC2A and IC2B, produce a 10-l`s pulse at their Q output in response to a rising edge at their A input. Comparator IC1B produces a rising edge when the input exceeds VREF Low and comparator IC2A produces a rising edge when the in])ut exceeds VREFHIGH.·


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

The NOR gates, IC3A and IC3B, form a bistable latch whose Q output, when low, disables IC4. IC4, unless disabled, produces output pulses in response to falling edges at the IC1B comparator output. You set the width of these pulses by selecting the value of C3. The circuit can handle an input waveform containing 0 to 2 V amplitudes and 10-Hz to 10-kHz frequency components.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Infinite sample and hold amplifier
Three phase square-wave output generator
Tone detector
2.5A/1.25 To 25V Regulated Power Supply
LM3900 Audio Mixer Schematic Diagram
The multi-channel segregation with backup battery exports the switching power supply
nicd battery charger using common electronic components
mic preamp circuit
Police siren using NE555
Explanation of Bedini’s Pulse Motor and Generator
A combination of common-source grounded base amplifier formed by cascaded amplifier
Clamp meter circuit



Top