# BASIC ELECTRONICS (15ELN15/15ELN25) CBCS SCHEME AND SYLLABUS,NOTES

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BASIC ELECTRONICS
[As per Choice Based Credit System (CBCS) scheme]
(Effective from the academic year 2015 -2016) SEMESTER - I/II

Subject Code - 15ELN15 / 15ELN25                             IA Marks         20
Number of Lecture Hours/Week           04                  Exam Marks   80
Total Number of Lecture Hours             50                  Exam Hours   03
CREDITS - 04

### Course objectives:

#### Course objectives:

The course objective is to make students of all the branches of Engineering to understand the efficacy of Electronic principles which are pervasive in engineering applications

Module -1
Semiconductor Diodes and Applications (Text-1): p-n junction
diode, Characteristics and Parameters, Diode approximations, DC
load line analysis, Half-wave rectifier, Two-diode Full-wave rectifier,
Bridge rectifier, Capacitor filter circuit (only qualitative approch),
Zener diode voltage regulators: Regulator circuit with no load,
Loaded Regulator. Numerical examples as applicable.

Bipolar Junction Transistors: BJT operation, BJT Voltages and
Currents, BJT amplification, Common Base, Common Emitter and
Common Collector Characteristics, Numerical examples as
applicable.

Module -2
BJT Biasing (Text-1): DC Load line and Bias Point, Base Bias,
Voltage divider Bias, Numerical examples as applicable.

Introduction to Operational Amplifiers (Text-2): Ideal OPAMP,
Inverting and Non Inverting OPAMP circuits, OPAMP applications:
voltage follower, addition, subtraction, integration, differentiation;
Numerical examples as applicable

Module – 3
Digital Electronics (Text-2): Introduction, Switching and Logic
Levels, Digital Waveform (Sections 9.1to 9.3). Number Systems:
Decimal Number System, Binary Number System, Converting
Decimal to Binary, Hexadecimal Number System: Converting
Numbers: Binary to Octal Conversion. Complement of Binary
Numbers. Boolean Algebra Theorems, De Morgan’s theorem. Digital
Circuits:  Logic gates, NOT Gate, AND Gate, OR Gate, XOR Gate,
NAND Gate, NOR Gate, X-NOR Gate. Algebraic Simplification,
NAND and NOR Implementation (Sections 11.7 and 11.8): NAND

Module-4
Flip-Flops (Text-2): Introduction to Flip-Flops (Section 12.1), NAND
Gate Latch/ NOR Gate Latch, RS Flip-Flop, Gated Flip-Flops:
Clocked RS Flip-Flop (Sections 12.3 to 12.5).
Microcontrollers (Ref.1): Introduction to Microcontrollers, 8051
Microcontroller Architecture and an example of Microcontroller
based stepper motor control system (only Block Diagram approach).

Module-5
Communication Systems (Text-2): Introduction, Elements of
Communication Systems, Modulation: Amplitude Modulation,
Spectrum Power, AM Detection (Demodulation), Frequency and
Phase Modulation.  Amplitude and Frequency Modulation: A
comparison.

Transducers (Text-2): Introduction, Passive Electrical Transducers,
Resistive Transducers, Resistance Thermometers, Thermistor.
Linear Variable Differential Transformer (LVDT).  Active Electrical
Transducers, Piezoelectric Transducer, Photoelectric Transducer

Course outcomes:
After studying this course, students will be able to:
• Appreciate the significance of electronics in different applications,
• Understand the applications of diode in rectifiers, filter circuits and
wave shaping,
• Apply the concept of diode in rectifiers, filters circuits
• Design simple circuits like amplifiers (inverting and non inverting),
comparators, adders, integrator and differentiator using OPAMPS,
• Compile the different building blocks in digital electronics using logic
gates and implement simple logic function using basic universal
gates, and
• Understand the functioning of a communication system, and different
modulation technologies, and
• Understand the basic principles of different types of Transuducers.

Question paper pattern:

• The question paper will have ten questions.

• Each full Question consisting of 16 marks

• There will be 2 full questions(with a maximum of  four sub

questions) from each module.

• Each full question will have sub questions covering all the topics

under a module.

• The students will have to answer 5 full questions, selecting one full

question from each module.

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