Fundamentals of Electronics Engineering

Unit I

Semiconductor Diode: Depletion layer, V-I characteristics, Ideal and practical diodes, Diode equivalent circuits, Zener diode breakdown mechanism (Zener and avalanche). Diode Applications: Diode configurations, Half and full wave rectification, Clippers, Clampers, Zener diode as shunt regulator, Voltage-multiplier circuits. Special Purpose Devices: LEDs, Photo diodes, Varactor diodes, Tunnel diodes.

Unit II

Transistors: Bipolar Junction Transistor — construction, operation, amplification action, Common Base, Common Emitter, Common Collector configurations. Field Effect Transistor — construction and characteristics of JFETs, transfer characteristics, MOSFET (depletion and enhancement type), transfer characteristics.

Unit III

Operational Amplifiers: Op-Amp basics, Practical Op-Amp circuits — Inverting amplifier, Non-inverting amplifier, Unity follower, Summing amplifier, Integrator, Differentiator, Differential and common-mode operation, Comparators.

Unit IV

Digital Electronics: Number systems & representation, Binary arithmetic, Basic and universal gates, Boolean algebra simplification of Boolean functions, K-Map minimization up to 6 variables.

Unit V

Fundamentals of Communication Engineering: Signal representation and analysis, Electromagnetic spectrum, Elements of a communication system, Need of modulation and typical applications, Amplitude modulation and demodulation techniques. Introduction to Wireless Communication: Cellular communication, generations and standards in cellular systems, Fundamentals of satellite & radar communication.