For the comparator in the circuit in Figure 15.26(a), the output saturation voltages are \(\pm 9 \mathrm{~V}\). Let \(V_{\text {REF }}=5 \mathrm{~V}\). Let \(R_{2}\) be a fixed resistor in series with a potentiometer. Design the circuit such that the crossover voltage can easily be varied over the range of \(-2 \mathrm{~V}\) to \(-4 \mathrm{~V}\). The minimum resistance is to be \(20 \mathrm{k} \Omega\).

Figure 15.26(a):-

Transcribed Image Text:

R|| R ww VREF WW R R (a) R VREF VO VH