Question 1:
In the slope detector, what happens to the output signal if C2 is changed to 0.001 µF? 0.1 µF?
Answer 1:
If C2 is 0.1 µF:
- The capacitor will hold its charge for too long due to the slow discharge through resistor R2.
- The capacitor may not be able to track rapid variations in the signal’s amplitude, which results in a flattened output.
- The recovered signal will be overly smooth, and parts of the modulating signal may be missing or clipped due to the slow response of the circuit.
If C2 is 0.001 µF:
- The capacitor will discharge too quickly, which causes the circuit to respond to high frequency variations.
- The output will contain ripples or residual high frequency components, introducing noise in the output.
See the article: https://www.analog.com/en/resources/analog-dialogue/studentzone/studentzone-november-2024.html
