Unit 64: Fundamentals of Electronics

1. Introduction to Basic Electronics

• Overview of electronics and its applications
• Fundamental electrical quantities:
  • Voltage (V)
  • Current (I)
  • Resistance (R)
• Ohm's Law: V = IR
• Basic circuit elements: sources, loads, conductors

2. Circuit Analysis Techniques

• Kirchhoff's Current Law (KCL)
• Kirchhoff's Voltage Law (KVL)
• Nodal analysis method
• Mesh (loop) analysis
• Practical examples of circuit solving

3. Passive Components in Electronics

• Resistors:
  • Types and characteristics
  • Color coding and tolerance
• Capacitors:
  • Capacitance and charging/discharging behavior
  • Types of capacitors
• Inductors:
  • Inductance and magnetic fields
  • Applications in filtering and tuning

4. Active Components and Semiconductors

• Diodes:
  • PN junction theory
  • Forward and reverse bias
  • Applications: rectification, clipping
• Transistors:
  • Bipolar Junction Transistors (BJTs)
  • Field Effect Transistors (FETs)
  • Amplification and switching
• Integrated circuits (ICs):
  • Types and uses
  • Basic IC packages

5. Circuit Design Fundamentals

• Reading and creating schematic diagrams
• Component selection criteria
• Breadboarding and prototyping techniques
• Introduction to PCB basics

6. Power Supplies and Voltage Regulation

• Types of power supplies:
  • Batteries
  • Linear power supplies
  • Switching power supplies
• Voltage regulation methods:
  • Zener diode regulators
  • Voltage regulator ICs (e.g., 7805)
• Importance of stable power in circuits

7. Amplifiers and Signal Processing

• Amplifier basics and purpose
• Amplifier classes (A, B, AB, C)
• Amplifier configurations (common emitter, common collector, etc.)
• Frequency response and bandwidth considerations

8. Oscillators and Waveforms

• Purpose of oscillators in electronics
• Types of waveforms: sine, square, triangular
• RC and LC oscillators
• Crystal oscillators and their applications

9. Digital Electronics Basics

• Binary number system and conversions
• Logic gates (AND, OR, NOT, NAND, NOR, XOR, XNOR)
• Boolean algebra fundamentals
• Simple digital circuits and truth tables

10. Electronic Testing and Troubleshooting

• Common test equipment:
  • Multimeters
  • Oscilloscopes
  • Signal generators
• Methods for testing circuits
• Troubleshooting techniques and systematic approach
• Safety considerations when working with electronics