Diodes and their Applications: Theory (Part 1)

Master the skill of designing analog and power circuits using diodes!

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What you’ll learn

  • Structure of an Atom, Periodic Table, Electrical Properties of Materials, Valence and Conduction Bands, Semiconductor Currents, Doping, PN Junction, Jargons.
  • I-V Characteristics of Ideal and Practical Diodes, DC, AC and Average Resistances of the diodes, Forward, Reverse and Breakdown Regions of Operation.
  • Diode Modeling, Exponential Model, Necessity for Quick Analysis, Constant Voltage Model, Ideal Diode Model, Piece-wise Linear Model, Small Signal Model.
  • Zener Diode and its Modeling, Characteristics and Applications.
  • Forward Voltage, Maximum DC Reverse Voltage, Peak Inverse Voltage, Peak Reverse Repetitive Voltage, Peak Non-Repetitive Reverse Voltage, Isolation Voltage.
  • Maximum Average Forward Current, RMS Forward Current, Repetitive Forward Surge Current, Non-Repetitive Forward Surge Current, Maximum Reverse Leakage Current.
  • Double Pulse Test, Forward Recovery Characteristics and Reverse Recovery Characteristics.
  • Storage Temperature, Lead Temperature, Diode Thermal Model, Junction Temperature, Power Dissipation, SOA, Transient Thermal Impedance, Avalanche Energy Rating.
  • Junction Capacitances, Series Inductance, Maximum Mounting Torque, I2t Limit, Diode Power Loss Calculations.
  • Recovery Diodes, Schottky Diodes, Photo Diodes, LEDs, Tunnel Diodes, Varactor Diodes, TVS Diodes, SiC Diodes, SiGe Diodes, PiN Diodes.
  • Through-hole and SMD Packages, Wave Soldering and Reflow Soldering Techniques.
  • Anatomy of Datasheet, Front Page, Absolute Maximum Ratings, Thermal and Electrical Characteristics, Typical Plots, Packaging and Ordering Data, Mechanical Data.
  • Applications of Diodes, Diode Testing Methods, Interview Questions based on my personal experience.

Course Content

  • Introduction –> 1 lecture • 3min.
  • Introduction to Diodes –> 12 lectures • 36min.
  • Diode Characteristics –> 7 lectures • 23min.
  • Modelling of Diodes –> 9 lectures • 22min.
  • Zener Diodes –> 3 lectures • 11min.
  • Diode Voltage Specifications –> 7 lectures • 15min.
  • Diode Current Specifications –> 6 lectures • 16min.
  • Dynamic Characteristics –> 3 lectures • 15min.
  • Thermal Characteristics –> 9 lectures • 25min.
  • Miscellaneous Topics –> 5 lectures • 9min.
  • Types of Diodes –> 10 lectures • 22min.
  • Packaging and Soldering –> 4 lectures • 10min.
  • Understanding Datasheet Parameters –> 8 lectures • 17min.
  • Applications and Interview Questions –> 3 lectures • 7min.
  • Conclusion and References –> 1 lecture • 2min.

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Hello there!

Welcome to my course titled “Diodes and their Applications: Theory (Part 1)

This comprehensive Four-hour course optimizes learning by offering a detailed understanding of diodes and their associated circuits. By bridging theory and practical applications, students save time by gaining hands-on experience, directly applying concepts to real-world scenarios, and significantly accelerating their learning curve. The course curriculum is designed in such a manner that it builds the subject in a step by step and gradual manner starting from the very basics.

The detailed course curriculum is highlighted below:

Module 1: Introduction to Diodes

  • This module establishes all the semiconductor physics concepts necessary to understand diodes better. Topics include the structure of an atom, periodic table, electrical properties of materials, valence and conduction bands, currents in a semiconductor, doping, PN junction, diode jargons, types, and applications of diodes.

Module 2: Diode Characteristics

  • This module discusses I-V characteristics, DC resistance of the diode, forward-biased region characteristics, reverse-biased region characteristics, and breakdown region characteristics.

Module 3: Modeling the Diode

  • This module introduces modeling, including the exponential model, constant voltage drop model, ideal diode model, piece-wise linear model, and small signal model.

Module 4: Zener Diodes

  • This module covers various topics related to Zener diodes, including breakdown region, Zener diode model, and circuit applications.

Module 5: Diode Voltage Specifications

  • This module delves into essential voltage parameters crucial for diode selection in applications including forward voltage, maximum DC reverse voltage, peak inverse voltage, peak reverse repetitive voltage, peak non-repetitive reverse voltage, isolation voltage

Module 6: Diode Current Specifications

  • This module covers important current specifications for diode applications including maximum average forward current, RMS forward current, repetitive forward surge current, non-repetitive forward surge current, maximum reverse leakage current

Module 7: Dynamic Characteristics

  • This module delves into the intricate switching behaviors of diodes, focusing on detailed analyses of both forward and reverse recovery characteristics along with their detailed loss calculations with waveforms.

Module 8: Thermal Considerations

  • This module explores essential thermal metrics, specifications, and safety considerations related to diodes, covering topics such as the safe operating area, diode thermal model, transient thermal impedance, and the concept of avalanche energy.

Module 9: Miscellaneous Topics

  • This module covers essential diode parameters commonly found in datasheets and provides detailed insights into diode power losses.

Module 10: Types of Diodes

  • This module provides detailed insights into various types of diodes including recovery diodes, Schottky diodes, photo diodes, LEDs, tunnel diodes, varactor diodes, TVS diodes, SiC diodes, SiGe diodes, PiN diodes

Module 11: Packaging and Soldering

  • This module covers diode packaging and soldering techniques, exploring different diode package types and common soldering methods (Wave soldering, Reflow soldering, and Hand soldering) employed in the industry.

Module 12: Understanding Datasheet Parameters

  • This module delves into comprehending datasheet parameters by systematically exploring each section of the diode datasheet.

Module 13: Applications, Testing Methods, and Interview Questions

  • This module covers a range of diode applications, practical testing methods, and insightful interview questions drawn from my personal experience.

Module 14: Conclusion

  • This module concludes our journey together, along with many diode related references.

Throughout this course, you will build a strong and in-depth theoretical foundation about various diodes and their operation.

We hope you find this course engaging and enriching!

Let’s get started on this exciting learning journey!

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