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Electronics Engineering
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TEC-101/ TEC-201
[Effective from the session : 2004-05]
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Unit – I
Semiconductor materials and properties
Group-IV materials, Covalent bond, electron-hole concepts 1
Basic concepts of energy bands in materials, concept of forbidden gap 2
Intrinsic and extrinsic semiconductors, donors and acceptors impurities 1
Junction diode
p-n junction 1
depletion layer 1
v-i characteristics, diode resistance, capacitance 1
diode ratings (average current, repetitive peak current, non-repetitive current, 1
peak-inverse voltage).
Unit-II
Diode Applications
rectifiers (half wave and full wave) 1
calculation of transformer utilisation factor and diode ratings, 1
filter (C-filter), calculation of ripple factor and load regulation 2
clipping circuits, clamping circuits, voltage multipliers 2
Breakdown diodes
breakdown mechanisms (zener and avalanche) 1
breakdown characteristics, zener resistance, zener diode ratings 1
zener diode application as shunt regulator 2
Unit-III
Bipolar Junction Transistor
Basic construction, transistor action 1
CB, CE and CC configurations, input/output characteristics 2
Biasing of transistors-fixed bias, emitter bias, potential divider bias, comparison of biasing circuits 2
Transistor Amplifier
Graphical analysis of CE amplifier, concept of voltage gain, current gain 2
h-parameter model (low frequency), computation of Ai, Av, Ri, Ro of single transistor CE and CC amplifier configurations. 2
Unit-IV
Field Effect Transistor
JFET: Basic construction, transistor action, concept of pinch off, maximum drain saturation current, input and transfer characteristics, characteristic equation CG, CS and CD configurations, fixed-, self-biasing 3
MOSFET: depletion and enhancement type MOSFET-construction, operation and characteristics. 2
Computation of Av, Ri, Ro, of single FET amplifiers using all the three configurations 1
Unit-V
Switching theory and logic design
Number systems, conversion of bases 5
Boolean algebra, logic gates, concept of universal gate, canonical forms. 2
Minimisation using K-map 1
Operational Amplifiers
Concept of ideal operational amplifiers, ideal op-amp parameters, inverting, non-inverting and unity gain amplifiers, adders, difference amplifiers, integrators 2
Books and reference:
Boylestad and Nashelsky, ‘Electronic Devices and circuits’ PHI, 6e, 2001.
A Mottershead, ‘Electronic devices and circuits’, PHI, 2000.
Morris Mano, ‘Digital Computer Design’, PHI, 2003.
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