FIRST SEMESTER B. E (Common to all branches)
Sub Code : 06 ELN 15 / 06 ELN 25 IA Marks : 25
Hrs/ Week : 04 Exam Hours : 03
Total Hrs. : 52 Exam Marks : 100
PART – A
SEMICONDUCTOR DIODES AND APPLICATIONS: p-n junction
diode, Characteristics and Parameters, Diode approximations, DC load line,
Temperature dependence of p-n characteristics, AC equivalent circuits, Zener
diodes Half-wave diode rectifier, Ripple factor, Full-wave diode rectifier,
Other full-wave circuits, Shunt capacitor - Approximate analysis of capacitor
filters, Power supply performance, Zener diode voltage regulators, Numerical
examples as applicable (T1-2.1,2.2,2.3,2.4:2.5,2.6,2.9,R1- 20.1, 20.2, 20.3,
20.4, 20.8; T1- 3.5, 3.6).
TRANSISTORS: Bipolar Junction transistor, Transistor Voltages and
currents, amplification, Common Base, Common Emitter and Common
Collector Characteristics, DC Load line and Bias Point.
BIASING METHODS: Base Bias, Collector to Base Bias, Voltage divider
Bias, Comparison of basic bias circuits, Bias circuit design, Thermal Stability
of Bias Circuits (Qualitative discussions only).
(For Units II & III: T1- 4.1,4.2,4.3,4.4,4.5,4.6,5.1,5.2,5.3,5.4,5.5,5.7,5.9).
OTHER DEVICES: Silicon Controlled Rectifier (S.C.R), SCR Control
Circuits, More S.C.R applications; Unijunction transistor, UJT applications,
Junction Field effect Transistors(Exclude Fabrication and Packaging), JFET
Characteristics, FET Amplifications, Numerical examples as applicable (T1 -
19.1, 19.2, 19.3, 19.7, 9.1, 9.2, 9.4) 07 Hours
PART – B
AMPLIFIERS & OSCILLATORS: Decibels and Half power points, Single
Stage CE Amplifier and Capacitor coupled two stage CE
amplifier(Qualitative discussions only), Series voltage negative feedback and
Additional effects of Negative feed back(Qualitative discussions only), The
Barkhausen Criterion for Oscillations, BJT RC phase shift oscillator, Hartley
,Colpitts and crystal oscillator ( Qualitative discussions only) Numerical
problems as applicable.
(T1 - 8.2, 12.1, 12.3, 13.1, 13.7; R1-17.15, 17.16, 17.17, 17.18, 17.19)
INTRODUCTION TO OPERATIONAL AMPLIFIERS: Ideal OPAMP,
Saturable property of an OP AMP inverting and non inverting OPAMP
circuits, need for OPAMP, Characteristics and applications - voltage
follower, addition, subtraction, integration, differentiation; Numerical
examples as applicable Cathode Ray Oscilloscope (CRO)
(T2 -11.1-11.8, 9.6)
COMMUNICATION SYSTEMS: Block diagram, Modulation, Radio
Systems, Superhetrodyne Receivers, Numerical examples as applicable (T2 -
13.1, 13.2, 13.4, 13.5)
NUMBER SYSTEMS: Introduction, decimal system, Binary, Octal and
Hexadecimal number systems, addition and subtraction, fractional number,
Binary Coded Decimal numbers.
DIGITAL LOGIC:, Boolean algebra, Logic gates, Half-adder, Full-adder,
Parallel Binary adder.
(For Number Systems & Digital Logic: T2:.14.1 to 14.14)
1. (T1) Electronic Devices and Circuits: David. A. Bell; PHI, New Delhi,
2. (T2) Electrical and Electronics & Computer Engineering for Scientists and
Engineers Second Edition -K.A. Krishnamurthy & M.R.
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