3 LED Chaser Using BC547 Transistors

An LED chaser, also called as sequenter is one of the most common LED controlling circuit. This post presents circuit of the 3 LED chaser. The LEDs blinks one by one and the process repeats which gives the running light effect. Circuit is based on BC547 transistors.

Components

No.ComponentQuantity
1.Power supply (3V – 5V) 1
2.BC547 transistor3
3.20kΩ resistor3
4.100μF electrolytic capacitor3
5.LED3

Circuit diagram

The speed of the LED chaser is affected by values of C1, C2, and C3 capacitors.

3 LED Chaser Using BC547 Transistors (Circuit Diagram)

Designed circuit

Circuit is designed on a breadboard.

3 LED Chaser Using BC547 Transistors (Designed Circuit)

Leave a Comment

Your email address will not be published. Required fields are marked *