Lesson-Diode and its application.pptx

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Unit-19 Electronic Devices and circuits

Learning Topic-Diode and its application

Diode

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Answer D

Lesson Objective

• Define a diode and its basic function.

• Characteristics of a diode

• Diodes types and Applications

• A simple Diode demonstration

• Full-wave rectifier

Diode

A diode is a semiconductor device that primarily functions to allow current to flow in one direction (known as the forward direction)

Circuit Symbol

https://www.youtube.com/watch?v=a4ttjOEdlc8

This unidirectional behaviour is called rectification and is used in a wide variety of electronic circuits.

Diodes have two electrodes: the anode, which is connected to the positive side of a voltage source, and the cathode, which is connected to the negative side.

There are several types of diodes, each designed for specific applications.

• Normally a diode will not conduct until a particular voltage is reached.

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Types of Diodes and Purpose

Types of Diodes

Diodes are electronic components that can be used to regulate the voltage in circuits and to make logic gates.

Light-emitting diodes (LEDs) give off light and are often used for indicator lights in electrical equipment such as computers and television sets.

Applications in Circuits

Diodes are critical components in circuits ranging from power supplies to communication systems, playing key roles in shaping, controlling, and converting electrical signals in countless applications.

Activity-

Diode Demonstration

Half wave and Full wave rectifier      

https://www.youtube.com/watch?v=pcosWEhvink&t=14s