
- Electronics Projects
- 1.5v to 220v AC simple inverter
- Build Simple AM Radio receiver at home
- Simple Uninterruptible Power Supply (UPS) Circuits
- Single Transistor Amplifier Circuit
- 3.7v Lithium Battery Level Indicator
- LED Chaser using transistors
- Electronics Projects for Beginners
- Simple Latch Circuit Using Transistors
- DC to AC Power Converter circuit feature working
- Fire Alarm Circuit using Transistor
- Two Transistor Amplifier
- Laser Security System
- Music Operating Dancing LEDs light
- Volts Booster Circuit Using Ferrite ore transformer
- Touch switch circuit using Transistor
- Two transistor FM transmitter project
- LED Flasher Using Timer IC 555
- DC Voltage Power Supply Using The LM317
- Electronic Mosquito Repellent Circuit
- Light Dimmer Circuit 1000 Watts Using BT139
- Non-Contact Voltage Detector by using transistor
- 4 volts simple inverter project: explanation
- Flashing Police Lights Circuit
- Light Dependent Resistor, its types and applications
- 100 watts inverter circuit working and applications
- Stereo Audio Amplifier 5W Circuit using TEA 2025 IC
- Small High Volts using 2Sc 1815 transistor
- Electronic Doorbell Circuit using a 555 and CD4017
- Touch On Touch Off Switch Circuit Using 555 timer
- LM386 Audio Amplifier Circuit
- IC 4440 Amplifier Circuit
- Neon Lamp Circuits Working and Application
- Low Power Audio Amplifier Using integrated circuit
- Voltage Regulator Circuits using Transistor and Zener Diode
- Water Level Indicator Circuit Using Transistor
- LED Chaser using CD4017 IC
- Motion Sensor Light Switch
- Melody Generator Using IC um66
- Water Level Indicator Using IC
- Led Light to 220v AC
- LiFi Data Transfer System, WiFi vs LiFi
- How to Connect a CAR Battery | Polarity Checker
- Voltage Level Indicator Circuit
- Security Alarm Using PIR Sensor
- Battery Level Indicator Using LM 3914
- Single Transistor FM Transmitter circuit
- Different types of Capacitor
- Light Emitting Diode (LED) Types of LEDs
- Different Types of Relays
- Piezo buzzer features equivalent
- Clap Switch : Circuit and Its Working
- Different Types of diode, working and features
- PC817 Optocoupler Pinout, Equivalent, Features and applications
LED Chaser using transistors
In this project, I'm going to show you how can you make a very super LED chaser using transistors capacitors, LEDs, and resistors. Transistors are very handy little components that have many capabilities in electronics fields. In the circuit, I have made 5 LEDs chasers in a ring shape. This LED Chaser Circuit consists of 5 LEDs every transistor is driving 1 LED.
Circuit Diagram of LED chaser using Transistor
The circuit diagram of the LED chaser using transistors is given below all component's detail is also given. If you want to change the chaser speed then you can easily increase and decrease it by using different capacitors.
Hardware Components
The following components are required to make LED Chaser Circuit
- Transistors BC 547 ( or any other NPN transistor)
- 220-ohm resistors ( resistors value can be changed according to desire)
- 20k resistor
- 5 LEDs (any color)
- 3 to 12 volts battery or power supply
- 47uf capacitors (16v)
- copper wire for rings
LED chaser using transistors full construction videos
Working of LED Chaser using transistors
The key component of this circuit is the BC547 transistor array. When we power on the DC signal triggers the base of the transistor (T1), Lighting up the first LED. After that, the collector output of T1 acts as the control signal at the base of transistor T2, which lights up the 2nd LED after a set period of delay due to a 47uF Capacitor.
Then the Output DC signal triggers the base of transistor T3 which in turn on the 3rd LED after a specific delay. In this way, all led glows and after the last led, this process continues. You can increase and decrease the speed of glowing simply by changing the capacitors.
LED Chaser using transistors Applications
- Used in various projects such as Remote control switches, Light Chasers, Alarms, Touch ON-OFF switch circuits, Clap switch circuits, Matrix Die, and so on.