
- 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
Light Emitting Diode (LED) Types of LEDs
An LED (Light Emitting Diode) is a semiconductor tool that emits light due to the Electroluminescence effect. A Light Emitting Diode is mainly a PN Junction Diode, which emits light whenever forward biased. Light Emitting Diodes are almost everywhere. You can find LEDs in Cars, Mobile Phones, Televisions, Bikes, Office Lighting, Street Lights, Home Lighting, and many more. The Pin configuration of LED.

Some advantages of a Light Emitting Diode (LED) are as below
- Low Power Consumption
- Physically Robust
- Fast Switching
- Small Size
- Long-Lasting
Because of these advantages, LEDs have become very famous among a large set of people. Electronic Hobbyists, Electronics Engineers, and Electronics Enthusiasts frequently work with LEDs for different projects.
Light Emitting Diode (LED) Symbol
Given Below is the LED symbol. The symbol is alike to that of the p-n junction diode. The difference between these 2 symbols is that the 2 arrows indicate that the diode is emitting light.
Working of LEDs
The holes lie in the valence band, whenever the free electrons are in the conduction band. When there is a forward bias in the p-n junction and the electron that is a part of the n-kind semiconductor material would overrun the p-n junction and include the holes in the p-kind semiconductor material. so, the holes and the free electrons would be at the higher energy bands.
Whenever this motion of free electron and hole takes location, there is a change in the energy level as the voltage drops from the conduction band to the valance band. However, in LED the release of energy in the shape of photons would emit light energy. The entire act is called electroluminescence, and these diodes are called a light-emitting diode.
In LED, energy discharged in light form hinges on the prohibited energy gap. One could manipulate the wavelength of the light produced. So, from its wavelength, the light color and its visibility or cannot be controlled. The color and wavelength of the light emitted can be determined by doping it with several impurities.
Uses of LEDs
LEDs find applications in different fields, including optical communication, alarm and security systems, robotics and remote-controlled operations, etc. It finds usage in many such areas because of its long-lasting capability, low power necessities, swift response time, and fast switching capabilities. Given Below are a few standards LED uses:
- Used in automotive
- Uses in displays
- LED used in the dimming of lights
- Used for TV backlighting
Types of LEDs
Below is the list of different types of LED that are designed using semiconductors:
- Miniature LEDs
- High-Power LEDs
- Flash LED
- Bi and Tri-Colour
- Red Green Blue LEDs
- Alphanumeric LED
- Lighting LED
Advantages of LEDs