Electronics : Diode (Part 1) - A Solid State Approach
- Description
- Curriculum
- FAQ
- Reviews
Learn the fundamentals of Diodes and take the first leap to the world of Electronics.This course is on Diode as a Solid State Device.In this course we will thoroughly learn what happens inside a Diode under various applied voltages.So lets have a highlight of the entire course quickly-
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Understand the fundamentals of P-N Junction Semiconductor diode.In this lecture we will understand the Diode from Solid State approach,that is we will learn what actually happens inside the Diode under different circumstances.
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Properties of P-N Junction Semiconductor diode (Concept of Energy Band Diagram,Depletion Width,Electric Field at the junction etc).
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Mathematical expressions for Electric potential, Depletion Layer under Equilibrium.
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Discussion on Quasi-Fermi level and Energy Band Diagram plot.
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Carrier concentration as a Function of distance under applied forward bias.
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Current Density as a function of distance under applied forward bias.
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A common misunderstanding-Cut in voltage VS Built in voltage.
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V-I Characteristics of Diode under different bias conditions.
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Understand Diode function Generator & Diode Transfer-function Generator.
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Diode properties under reverse biased condition.
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Discussion on Breakdown phenomena-Avalanche Breakdown & Zener Breakdown.
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1
Basic Electrical elementsLets start from the basics.Learn the Basic electrical elements and then we will go to higher concepts.
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2
Introduction to Diode & Characteristic comparison
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3
Linear & Non-linear resistance analysis
How can we come to the concept of Diode from the basic concept of resistance....its simple.
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4
Different Diode & Resistor combination
Different diode resistor combination to analyse any electrical circuit with ease.
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5
Diode Function Generator
Generate different piece-wise functions with the help of Diode,Resistors and voltage sources.
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6
Set of approximations for equilibrium analysis
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7
Carrier concentration as a function of distance under equilibrium
Carrier distribution as a function of distance gives us the basics of all the concepts related to diodes under equilibrium.So it is very important.
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8
Electric field & Potential picture under equilibrium
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16
Set of approximations
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17
The Electric Field picture
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18
Carrier concentration as a function of distance ,Lecture 1
This concept will finally lead us to the I-V Characteristic of a diode under forward bias. That is why is concepts is discussed in full detail in 3 lectures.
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Carrier concentration as a function of distance ,Lecture 2
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20
Carrier concentration as a function of distance ,Lecture 3
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21
Current Density as a function of distance ,Lecture 1
To draw the current density variation w.r.t distance,it requires the concept of Continuity Equation under steady state condition.Lets discuss it first.
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22
Current Density as a function of distance ,Lecture 2
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Current Density as a function of distance ,Lecture 3
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Current Density as a function of distance ,Lecture 4
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25
Plot of I-V Characteristic for Si Diode at 300K
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26
Another Expression for Diode Current
Different expressions of Diode current will ultimately help us to clear the concepts and solve several numerical problems.
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27
Cut in voltage VS Built in voltage
Sometimes students confuse between these two voltages.Lets get the concept discussed again in detail.
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28
Practical Diode current equation
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29
Energy Band Diagram under Forward Bias
