Nice Effect LED Chaser Circuit Using BC547


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Hii friend,

Today I am going to make an LED chaser circuit.Its effect is amazing.This circuit I will make using BC547 Transistor.

Let's get started,

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Step 1: Components

Components required -

(1.) Transistor - BC547 x5

(2.) Resistor - 10K x5

(3.) Resistor 220 ohm x5

(4.) Capacitor - 25V 100uf/47uf x5 (Here I am using 100uf)

(5.) LED - 3V x5 (Ani color)

(6.) Battery - 9V

(7.) Battery clipper

Step 2: Circuit Diagram

This is the circuit diagram of this project.

Connect all components according to this circuit diagram.

Step 3: Make a Ring of Wire Like As Picture

Step 4: Connect LEDs to the Ring

Solder +ve leg of all LEDs to the ring as you can see in the picture and circuit diagram.

Step 5: Solder 220 Ohm Resistor

Next we have to solder 220 ohm resistor to the -ve legs of LEDs as solder in the picture.

Step 6: Connect All Transistors

Next we have to connect transistors.

Solder collector pin of transistor to 220 ohm resistor as you can see in the picture.

Step 7: Connect 10K Resistors

Next we have to solder 10K resistors to the circuit.

Solder 10K Resistor between Base pin of transistors to +ve legs of all LEDs as you can see in the circuit diagram.

Step 8: Connect Emmiter Pins of Transistor

Next we have to connect emmiter pins of all transistors together as solder in picture.

Step 9: Connect Capacitors

Solder capacitors to the circuit as given in the circuit diagram.

+ve pin of capacitor to Base pin of one transistor and -ve pin of capacitor to collector pin of other transistor as you can see in the picture.

Step 10: Connect Battery Clipper Wire

Now we have to connect battery clipper wire to the circuit.

Solder +ve wire of battery clipper to +ve of all LEDs and solder -ve wire of battery clipper to emmiter pin of transistors as given in the circuit diagram.

Step 11: Connect Battery

Now our circuit is ready so connect battery to battery clipper and see the nice effet of LED chaser.

Thank you

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