BASIC ELECTRONICS & COMMUNICATION ENGINEERING 21ELN14/24

2021 Scheme Notes – BASIC ELECTRONICS (Download👇)

Syllabus copy

21ELN14/24 Syllabus

Module 1

Electronic Circuits

Power Supplies – Block diagram, Rectifiers, Reservoir and smoothing circuits, Full-wave rectifiers, Bi-phase rectifier circuits, Bridge rectifier circuits, Voltage regulators, Output resistance and voltage regulation, Voltage multipliers.

Amplifiers – Types of amplifiers, Gain, Input and output resistance, Frequency response, Bandwidth, Phase shift, Negative feedback, Multi-stage amplifiers.

Operational amplifiers – Operational amplifier parameters, Operational amplifier characteristics, Operational amplifier configurations, Operational amplifier circuits.

Oscillators – Positive feedback, Conditions for oscillation, Ladder network oscillator, Wein bridge oscillator, Multivibrators, Single-stage astable oscillator, Crystal controlled oscillators.
(Only Concepts, working, and waveforms. No mathematical derivations)

Module 2

Logic Circuits & Shift registers

Logic Circuits – Logic gates, Bistables, R-S Bistables, D-type Bistables, J-K Bistables.

Data representation, Data types, Data storage, A microcontroller system.

Realization using basic gates and truth table the Half Adder and Full Adder, Multiplexer and decoder.
Shift registers, Register type – operation and truth table, Counters and, asynchronous counters.

(No simplification of Boolean algebra, no K-maps. Only logic circuit, working and truth table)

Module 3

Embedded Systems & Sensors and Interfacing

Embedded Systems – Definition, Embedded systems vs general computing systems, Classification of Embedded Systems, Major application areas of Embedded Systems, Elements of an Embedded System, Core of the Embedded System, Microprocessor vs Microcontroller, RISC vs CISC, Harvard vs Von-Neumann.

Sensors and Interfacing – Instrumentation and control systems, Transducers, Sensors.

Actuators: LED, 7-Segment LED Display, Stepper Motor, Relay, Piezo Buzzer, Push Button Switch, Keyboard.

Communication Interface: UART, Parallel Interface, USB, Wi-Fi, GPRS.

Module 4

Analog and Digital Communication

Analog and Digital Communication – Modern communication system scheme, Information source, and
input transducer, Transmitter, Channel or Medium – Hardwired and Softwired, Noise, Receiver,
Multiplexing, Types of communication systems.

Types of modulation (only concepts) – AM (only 2.2, no 2.2.1 and rest), FM, Phase Modulation, Pulse
Modulation, PAM, PWM, PPM, PCM.

Concept of Radio wave propagation (Ground, space, sky)

• Concepts of Sampling theorem, Nyquist rate, Digital Modulation Schemes (also see 6.12) – ASK, FSK, PSK
• Radio signal transmission
• Multiple access techniques
• Multipath and fading
• Error Management
• Antenna, Types of antennas

Module 5

Cellular Wireless Networks

Cellular Wireless Networks – Introduction, cellular telephone system, cellular concept and frequency reuse.
Wireless Network Topologies – First Generation (1G) Technology, Second Generation (2G) Technology, GSM Communications, GSM System architecture, Third Generation (3G) Technology, CDMA Technology, High level architecture of LTE, Fourth Generation (4G) Technology, Wireless LAN, Bluetooth, Bluetooth Architecture.

Satellite Communication – Elements of Satellite Communication, Types of satellites – GEO, LEO, MEO.

Optical Fiber Communication – A fiber optic Communication system.

Microwave Communication – Introduction, Frequency modulated microwave communication system