Today I am going to make an LED Chaser circuit without using IC.This circuit is amazing and I will make this circuit using BC547 Transistor.This is Best LED Chaser circuit.
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Step 1: These Components Required to Make This Project
Step 2: Connect Emmiter of Transistors
Firstly we have to connect emmiter pins of all three transistors as solder in the picture.
Step 3: Connect 100uf Capacitors
Next we have to connect capacitors to the transistors.
[Capacitor 1] - Solder -ve pin of 1st capacitor to Base Pin of 1st Transistor and +ve pin to collector pin of 2nd transistor,
[Capacitor 2] - Solder -ve pin of 2nd capacitor to Base Pin of 2nd Transistor and +ve pin to collector pin of 3rd transistor and
[Capacitor 3] - Solder -ve pin of 3rd capacitor to Base Pin of 3rd Transistor as you can see in the picture.
Step 4: Connect +ve Pin of 3rd Capacitor
Solder +ve pin of 3rd Capacitor to Collector pin of 1st Transistor using a wire as solder in the picture.
Step 5: Connect 560 Ohm Resistor
Next we have to connect 560 ohm resistor to the circuit.
Solder 560 Ohm resistors to all collector pins of the transistors as solder in the picture.
Step 6: Connect 10K Resistors
Next connect 10K resistors to the circuit.
Solder 10K resistors to Base pins of the all three transistors as solder in the picture.
Step 7: Connect All Wires of 10K and 560 Ohm Resistors
Next connect all out wires of 10K resistors and 560 Ohm Resistors to each other as you can see in the picture.
Step 8: Connect -ve Legs of All LEDs
Now we have to connect -ve legs of all LEDs to each other as connected in the picture.
Step 9: Connect 1st Wire
Next Connect a wire to +ve leg of LED-1 to +ve leg of LED-4,
Step 10: Connect 2nd Wire
Solder 2nd wire to +ve leg of LED-2 to +ve leg of LED-5,
Step 11: Connect 3rd Wire
Next solder 3rd wire to +ve leg of LED-3 to +ve leg of LED-6 as you can see in the picture.
Step 12: Connect a Wire to -ve Leg of LEDs
Solder a wire to -ve leg of LEDs.
As you can see in the picture Yellow wire is solder to -ve leg of LEDs.
Step 13: Connect Wires of LEDs to the Circuit
Solder -ve wire of LEDs to Common Emmiter pin of the transistors.
Solder wire of LED-1 to Collector pin of Transistor-1,
Solder wire of LED-2 to collector pin of Transistor-2 and
Solder wire of LED-3 to Collector pin of Transistor-3 as solder in the picture.
Step 14: Connect Battery Clipper Wire
Now solder +ve wire of battery clipper to Out wires of 10K and 560 Ohm resistors and
Solder -ve wire of battery clipper to Common emmiter pin of the transistors as you can see in the picture.
Step 15: Connect Battery
Now our circuit is completed so connect battery to the battery clipper and see LED is chasing.
This LED Chaser circuit gives best output.
NOTE : We can give Input Power supply 9V - 12V DC.