A light-emitting diode is a semiconductor light source with two leads. Nick Holoniac, who worked for a general electric company, invented the light diode in 1962.
LEDs are special types of diodes with the same electrical characteristics as P N junction diodes. They allow current to flow through the lead and prevent the current from flowing backwards. The LED occupies a small area less than 1 mm2.
MATERIALS IN CONSTRUCTION
FORWARD VOLTAGE (IN VOLTS)
How does a Light Emitting Diode work?
Light-emitting diodes are what we know as forms of diodes, and when they are forward biased, electrons are moving rapidly at the hole junction and continuously joining, making the entire atom more stable and releasing a small amount of energy in the form of a photon of light when the diode is forward biased.
It operates in a wide range of temperatures from 00C to 700C
LED switching time is in the order of 1ns. As a result, they are useful in dynamic operations with many arrays.
Low power consumption- It consumes very little power and can run with a low power supply.
4.The radiant power of the LED is determined by the current flowing through it. As a result, LED light intensity can be easily controlled.
Cheap and reliable LEDs have a high degree of reliability and are economical in price.
They are small and can be stacked together to form an alphanumeric display.
1.If the power exceeds a certain limit, there is a possibility of loss. When the power is low, the same is possible.
2.Overheating due to radiant power – It overheats when radiant power is excessively increased. LEDs can be damaged by this.