Beginner’s Guide to PN Junction Diodes & BJTs

This course is designed for beginners who want to build a strong foundation in PN junction diodes and bipolar junction transistors (BJTs)—the fundamental components of modern electronics. You will explore the working principles, characteristics, and real-world applications of these semiconductor devices.

Key Learning Outcomes:

• Understand the physics behind PN junction formation, depletion region, and diode operation.
• Analyse the behaviour of forward and reverse bias in diodes and their applications in rectification, clamping, and switching circuits.
• Learn about BJT structure and  operation.
• Examine the two major BJT configurations: common emitter & common base and their impact on circuit performance.
• Compare NPN and PNP transistors and their roles in amplification and switching applications.

Software & Tools can be used

• LTSpice – Circuit simulation for diode and BJT analysis.
• Multisim – Interactive circuit design and testing.
• Proteus – For advanced simulation and PCB design.

Through real-world examples and step-by-step explanations, you will gain the confidence to work with diodes and BJTs in circuit design. By the end of this course, you will be able to apply your knowledge to design, analyze, and troubleshoot electronic circuits, setting the stage for more advanced electronics learning.

Enrol today and take your first step into the world of semiconductor devices and circuit design.