Question:
Compute the threshold voltages for all four comparator setups (simple, non-inverting hysteresis, inverting hysteresis) and compare the results with the ones obtained from the experimental setups.
Answer:
1.Simple Comparator (Figure 1).
The threshold voltage is determined by the input DC voltage applied (Vref).
Therefore:
2. Non-inverting hysteresis comparator (Figure 4).
The resistor values used in the setup are the following: R1 = 10kΩ, R2 = 20kΩ
We can compute the voltage thresholds as follows:
3. Inverting hysteresis comparator (Figure 8).
The resistor values used in the setup are the following: R1 = 10kΩ, R2 = 10kΩ
We can compute the voltage thresholds as follows:
4. Inverting hysteresis comparator (Figure 8).
The resistor values used in the setup are the following: R1 = 10kΩ, R2 = 10kΩ, Vref=1V.
We can compute the voltage thresholds as follows:
