Comparator for Threshold Detection

Overview

This experiment uses a comparator to detect whether an input signal exceeds a certain threshold voltage, generating a high or low output.

Components Required

• Comparator IC (e.g., LM339)
• Resistors (10kΩ, 100kΩ)
• Power supply
• LEDs
• Breadboard and wires

Procedure

1. Set up the comparator with a reference voltage and input signal.

2. When the input signal exceeds the reference voltage, the output will switch states.

3. Use LEDs to display the output of the comparator.

Expected Result

The LED will turn on or off based on whether the input signal is above or below the threshold.