# Visvesvaraya Technological University (VTU) - BASIC ELECTRONICS - Syllabus

FIRST SEMESTER B. E (Common to all branches)

**BASIC ELECTRONICS**

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**

Unit-I

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).

07 Hours

Unit-II

TRANSISTORS: Bipolar Junction transistor, Transistor Voltages and

currents, amplification, Common Base, Common Emitter and Common

Collector Characteristics, DC Load line and Bias Point.

06 Hours

Unit-III

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).

06 Hours

Unit-IV

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**

Unit-V

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)

06 Hours

Unit-VI

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)

06 Hours

Unit-VII

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.

07 Hours

Unit-VIII

DIGITAL LOGIC:, Boolean algebra, Logic gates, Half-adder, Full-adder,

Parallel Binary adder.

(For Number Systems & Digital Logic: T2:.14.1 to 14.14)

07 Hours

**TEXTBOOKS:**

1. (T1) Electronic Devices and Circuits: David. A. Bell; PHI, New Delhi,

2004

2. (T2) Electrical and Electronics & Computer Engineering for Scientists and

Engineers Second Edition -K.A. Krishnamurthy & M.R.

Reference: http://www.vtu.ac.in/