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Sem 4 - ELECTRONIC CIRCUITS

Module 1
Transistor Characteristics: CE, CB, CC Configurations – Biasing – Operating Point – Operating point instability – thermal runaway – bias stability – Stability factor – stabilization techniques – Fixed bias – Collector to Base bias – Emitter bias – Voltage divider bias – Stability against variation in ICO.
FET: Principle of operation and characteristics – biasing FETs – self bias – FET amplifier.
UJT: Principle of operation and characteristics.

Module 2
Small Signal Analysis: h-parameter equivalent circuit of a BJT – comparison of CB, CE, and CC configurations – Determination of h – parameters from static characteristics – current and voltage gains, input impedance of a basic amplifier in h-parameters.
Multi-stage Amplifiers: RC coupling – Frequency response characteristics – bandwidth – cascading of amplifiers – gain and bandwidth.

Module 3
Feedback amplifiers: Positive and Negative feedback – types of negative feedback – Typical circuits –effect of negative feedback in amplifier performance.
Oscillators: Barkhausen criterion – classification of oscillators – Principle of operation of RC phase-shift, Hartley and crystal oscillators (analysis not required).

Module 4
Multi-vibrators: Principle of Operation and design of astable multi-vibrators – principle of bi-stable and mono-stable multi-vibrators – circuits.
Sweep generators: Principle of Sweep generation – basic transistor sweep circuit – Equation for sweep amplitude. Sweep generation using UJT relaxation oscillator circuit.
Wave shaping: Clipping and Clamping circuits using diodes – RC differentiating and Integrating Circuits.

Module 5
Power Amplifiers: Class A, B, AB and C operation – Efficiency of Class A and B – Push-pull amplifier – Complimentary Symmetry amplifiers.

References

Integrated Electronics: Millman and Halkias, TMH
Electronic Devices and Circuit Theory: Robert L. Boylestad and Louis Nashelsky, Pearson Education Asia, LPE.
Electronic Principles: Albert Paul Malvino, TMH
Electronic Devices and Circuits, An Introduction: Allen Mottershead, PHI