Window Comparator Circuit Design

Notice that when the input v in is between v h and v l the output goes to the pull up voltage v p.

Window comparator circuit design.

T vh vin vl vout time s 0 00 10 00m 20 00m t 0 00 5 00 10 00 figure 5. The window comparator circuit we will build with 2 lm741 op amp chips and an inverter chip is shown below. In this article we will elaborately learn how to correctly design comparator circuits using popular ics like ic 741 ic 311 and ic lm339 difference between a comparator and op amp the ic 741 is an ideal example of a single op amp and the ic lm311 can be considered a good example of a dedicated single comparator. The breadboard circuit of the circuit above is shown below.

In order to power the lm741s we apply 5vdc to v pin 7 and we connect v pin 4 to ground. In order to power the lm741s we apply 5vdc to v pin 7 and we connect v pin 4 to ground. A window comparator will output a voltage between two selected voltage points and be off outside that range. 1 we have used 2 of 4 comparators in a lm339.

So the first thing that should be done is powering of the chips. So the first thing that should be done is powering of the chips. The modified window comparator circuit we will build with 2 lm741 op amp chips is shown below. A window comparator is basically the inverting and the non inverting comparators above combined into a single comparator stage.

The breadboard circuit of the circuit above is shown below.