In inverting schmitt trigger circuit, the supply voltage is ± 12V. What is the maximum output voltage?

r1 = 10kΩ
r2 = 10lkΩ

3 answers

To determine the maximum output voltage of an inverting Schmitt trigger circuit, we need to know the threshold voltages of the circuit.

The threshold voltage (Vt+) at which the output switches from low to high is calculated using the formula:

Vt+ = Vref * (1 + (R2/R1))

Similarly, the threshold voltage (Vt-) at which the output switches from high to low is calculated using the formula:

Vt- = Vref * (1 - (R2/R1))

Since the circuit is powered by ± 12V, the reference voltage (Vref) would typically be half the supply voltage, i.e., 6V in this case.

Therefore,
Vt+ = 6V * (1 + (10kΩ / 10kΩ))
Vt+ = 12V

Vt- = 6V * (1 - (10kΩ / 10kΩ))
Vt- = 0V

As the maximum output voltage (Vout) is equivalent to the supply voltage (+12V or -12V), the maximum output voltage in this inverting Schmitt trigger circuit would be ± 12V.
Question 35 options:

a) almost +10 V
b) + 5V
c) almost -10 V
d) - 5 V
In the given inverting Schmitt trigger circuit, the maximum output voltage will be equal to the supply voltage, which is ± 12V. Thus, the correct option is:

a) almost +10 V