Applications of Semiconductor Diode

What is a Diode?

A diode is made up of two words i.e., “Di “ means Two, and “Ode “ means Electrodes which means that a device or component has two electrodes. (i.e., cathode and anode). A diode is an electronic device having a two-terminal unidirectional power supply i.e it has two terminals and allows the current to flow only in one direction. Diodes are widely used in modern-day circuits to secure circuits from over-voltage and they are also used to change AC current to DC current....

Representation Symbol of a Diode

Diodes are represented using special symbols and the symbol for a standard diode symbol is given below. In the given diagram it is clear that a diode has two terminals which are called the cathode and anode. The arrowhead symbol represents the anode and the other end represents the cathode. The current flow from cathode to anode in the forward bias condition. The general representation of a Diode is given below,...

Construction of Diode

We know that there are two types of semiconductor materials: Intrinsic and Extrinsic semiconductors. In intrinsic semiconductors, the number of electrons and hole concentration are equal at room temperature. In an extrinsic semiconductor, impurities are added to the semiconductor to increase the number of electrons or the number of holes. These impurities are pentavalent (Arsenic, Antimony, phosphorous) or tri-valent (boron, indium, aluminium)....

Working of Diode

In the N-type region, the majority of charge carriers are electrons and the minority of charge carriers are holes. Whereas, In the P-type region, the majority of charge carriers are holes and the minority of charge carriers are electrons. Because of the concentration difference, the diffusion takes place in majority charge carriers and they recombine with the minority charge carriers which are then collected near the junction and this region is known as the Depletion Region....

Characteristics of Diode

The characteristics of the diode can easily be understood under the following three headings....

Ideal Diodes

Ideal diodes are diodes that are used to control the direction of current flow. An ideal diode allows current to flow in one direction only, called the forward direction whereas the current flowing in the reverse direction is blocked....

Types of Semiconductor Diode

There are different types of semiconductor diodes that are used widely in our daily life some of which are,...

Applications of Semiconductor Diode

Semiconductor Diode have all sorts of applications and some of the applications of semiconductor diodes are as follows:...

FAQs on Diodes

Question 1: What is a diode?...