Learn Bipolar Junction Transistor ( BJT ) - From Basics

Learn BJT from very basics to Advance level

4.20 (44 reviews)
Udemy
platform
English
language
Engineering
category
instructor
1,422
students
14.5 hours
content
Nov 2021
last update
$64.99
regular price

What you will learn

Be able to learn the basics of Transistor ( Bipolar Junction Transistor )

Be able to learn operating modes of BJT

Be able to learn current components of BJT in active region

Be able to learn characteristics of BJT

Be able to learn Amplifiers, Oscillators and Power amplifiers

Be able to learn Feedback amplifiers and Multistage amplifiers

Description

The Bipolar Junction Transistor is a semiconductor device which can be used for switching or amplification

This Course deals with basics of BJT, BJT characteristic's, BJT biasing Techniques( Fixed bias, collector to Base bias and voltage divider bias), BJT amplifiers ( CB, CE, CC amplifiers), small signal model of BJT( Hybrid model ), Feedback amplifiers, Oscillators ( RC and LC ), Multistage amplifiers and Power amplifiers.

If we now join together two individual signal diodes back-to-back, this will give us two PN-junctions connected together in series which would share a common Positve, (P) or Negative, (N) terminal. The fusion of these two diodes produces a three layer, two junction, three terminal device forming the basis of a Bipolar Junction Transistor, or BJT for short.

Transistors are three terminal active devices made from different semiconductor materials that can act as either an insulator or a conductor by the application of a small signal voltage. The transistor’s ability to change between these two states enables it to have two basic functions: “switching” (digital electronics) or “amplification” (analogue electronics). Then bipolar transistors have the ability to operate within three different regions:

  • Active Region – the transistor operates as an amplifier and Ic = β*Ib

  • Saturation – the transistor is “Fully-ON” operating as a switch and Ic = I(saturation)

  • Cut-off – the transistor is “Fully-OFF” operating as a switch and Ic = 0


The word Transistor is a combination of the two words Transfer Varistor which describes their mode of operation way back in their early days of electronics development. There are two basic types of bipolar transistor construction, PNP and NPN, which basically describes the physical arrangement of the P-type and N-type semiconductor materials from which they are made.

The Bipolar Transistor basic construction consists of two PN-junctions producing three connecting terminals with each terminal being given a name to identify it from the other two. These three terminals are known and labelled as the Emitter ( E ), the Base ( B ) and the Collector ( C ) respectively.

Bipolar Transistors are current regulating devices that control the amount of current flowing through them from the Emitter to the Collector terminals in proportion to the amount of biasing voltage applied to their base terminal, thus acting like a current-controlled switch. As a small current flowing into the base terminal controls a much larger collector current forming the basis of transistor action.

The principle of operation of the two transistor types PNP and NPN, is exactly the same the only difference being in their biasing and the polarity of the power supply for each type.

Content

Introduction

Introduction
Terminals of BJT
BJT Symbols
BJT Operating Modes
Current components of BJT in active mode
Current components of BJT in active mode - 1
BJT Configurations
Relation between Alpha and Beta
Important points
Practice questions and answers

Screenshots

Learn Bipolar Junction Transistor ( BJT ) - From Basics - Screenshot_01Learn Bipolar Junction Transistor ( BJT ) - From Basics - Screenshot_02Learn Bipolar Junction Transistor ( BJT ) - From Basics - Screenshot_03Learn Bipolar Junction Transistor ( BJT ) - From Basics - Screenshot_04

Reviews

Caribe
April 17, 2022
This man is very smart and I would love to learn from him, I just can not understand a single word he is saying =(
Dschuster
February 2, 2022
Strong accent is a minus but the quality of teaching is amazing. Does a good job of using the board to draw explanations.
Hanup
May 28, 2021
This is the best course for BJT. Every topic is taught from basic to advance level. Every concept is covered with proper examples.
Vanaja
May 28, 2021
This was a great refresher course for me and for beginners also. This course introduces the basic operation of BJT and finally I got the confidence. I would recommend electronic students to go through this course since it will help them a lot. Thank you professor.

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4080894
udemy ID
5/27/2021
course created date
5/31/2021
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