LED Blinking Circuit with Transistors

Overview

This experiment demonstrates how to blink an LED using transistors. By utilizing a timing circuit with a transistor, capacitor, and resistor, we can control the blinking interval of the LED.

Components Required

• LED
• Transistor (NPN)
• Resistor (1kΩ)
• Capacitor (10µF)
• Power Supply (5V)

Procedure

Follow these steps to create your LED blinking circuit:

1. Connect the transistor in a common-emitter configuration.
2. Attach the LED to the collector pin.
3. Add the capacitor between the base and emitter pins to control the timing of blinking.
4. Adjust the resistor to control the base current.

Expected Result

The LED will blink at regular intervals based on the timing circuit. Adjusting the resistor and capacitor values will change the blinking rate.