[Latest] Polytechnic Lecturer Electronics Engineering Syllabus|720/2024 Syllabus Kerala PSC

Polytechnic lecturer Electronics Engineering Syllabus : Download Detailed syllabus of Polytechnic lecturer Electronics Engineering 720/2024. Exam date: 29.08.2025.

Contents

About the Exam Polytechnic lecturer Electronics Engineering

Department : TECHNICAL EDUCATION DEPARTMENT

Post: LECTURER IN ELECTRONICS ENGINEERING (POLYTECHNICS)

CAT NO: 720/2024

TOTAL MARKS : 100

Exam Date: 29 August 2025, Friday

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Lecturer in Polytechnics Electronics Main Topics

Module I : Essentials of Electronics Engineering – (12 MARKS)

Module II : Electronic Circuits – (20 MARKS)

Module III : Linear Integrated Circuits & Wave Shaping Circuits – (20 MARKS)

Module IV : Digital Electronics, Microprocessor and Micro controllers -(20 MARKS

Module V : Communication Engineering – (18 MARKS)

Module VI: Power Electronic, Opto Electronic, PLC and Measuring Equipments (10 MARKS)

720/2024 Detailed Syllabus Kerala PSC

Module I : Essentials of Electronics Engineering – (12 MARKS)

Active and passive devices – review only. LED – working, applications, comparison
of LED lighting and CFL lighting. Full wave rectifier – diagram and explanation, 5 V
power supply – with bridge rectifier and 7805. SMPS – block diagram and
advantages. Integrated circuits. SMDs – advantages. Static electricity – precautions in
handling electronic circuits.
Switches: ON / OFF, push to ON, push to OFF, push to ON / OFF, SPST, SPDT,
DPDT. Working and application of limit switches, proximity switches, relays.
Microcontrollers: Simple block diagram of 8 bit microcontrollers – application.
Mobile technology: CDMA and GSM. Compare – 2G and 3G technologies.
Inverter & UPS: Block diagram. Compare – inverter and UPS. Online and off line
UPS – differentiate. Battery selection for UPS and inverter.
Ewaste: Health hazards of e-waste.

Module II : Electronic Circuits – (20 MARKS)

Solid state devices – Characteristics of PN junction and Zener diode, Tunnel diode,
NPN and PNP transistor – N channel and P channel, JFET and MOSFET – Rectifier –
half wave and full wave, filters – capacitor, inductor, LC filter, pie section – analysis
and characteristics. Transistor – CB, CE, CC configuration, calculation – voltage gain,
current gain – harmonic distortion, power amplifier – class A, class B, class C, class
AB, class D, class S – Push Pull, Complementary Symmetry – Analysis.
Biasing methods of Transistor – AC and DC load lines, frequency response – gain
calculation, gain in db – Analysis. Transistor as a switch – applications – Darlington
pair. Different coupling methods of transistor amplifiers – RC, DC, Transistor
Coupled, tuned amplifier – multi stage amplifier – stragged tunning – cascade and
cascade – gain bandwidth product – analysis. FET amplifiers – CS, CD.
Comparison of FET and BJT – Feed back in amplifiers – negative and positive feed
backs, effect of feed backs. Oscillators – Barkhausen criterion. RC phase shift, Wein
bridge, LC, Hartley and Colpitts oscillators, crystal oscillator – Analysis,
Multivibrators – Astable, Bistable, Monostable – calculation of Time period,
triggering methods, Schmitt trigger, LTP, UTP – Hysterisis – Applications and
analysis.

Module III : Linear Integrated Circuits & Wave Shaping Circuits -(20 MARKS)

Differential amplifiers – analysis – CMRR, Op-amps – ideal characteristics, block
schematic slew rate, input and output offset, virtual ground. Concept of 741 Op-Amp,
gain bandwidth product, open loop and closed loop gain. Linear Op-amp circuits,
Inverter and non-inverter amplifiers, summing amplifiers, subtractor, instrumentation
amplifiers, Precision rectifiers – analysis.

Non-linear Op-Amp circuits Log, Anti Log amplifiers, Schmitt trigger, comparator, astable and monostable
multivibrators – analysis. Active filters – LPF, HPF, BPF, BSF, Universal filters –
Butterworth and Chebyshev filter first and second order, transfer function –
realization – analysis. Triangular wave generator, sawtooth generator, Oscillator –
Wein bridge, phase shift – analysis of circuits, 555 internal block diagram –
applications – design of astable and monostable using 555 – VCO, PLL, phase
detector – principle of operation – capture and lock range – applications – analysis.
Integrator and differentiator using passive devices, op-amps – design and analysis –
application. Miller and Bootstrap sweep, V to I and I to V converters – analysis.

Module IV : Digital Electronics, Microprocessor and Micro controllers -(20 MARKS)

Number system – binary, octal, hexadecimal, decimal converters, Binary codes –
numeric and alpha numeric codes – gray, BCD, excess-3, self complementing codes –
weighted and unweighted codes. Error detection and correction codes – parity,
hamming codes. Boolean algebra theorem, De Morgan’s theorem, logic gates, logic
function, truth tables, SOP and POS forms, combinational and sequential circuits,
simplification and implementation of logic expressions using K-maps, half adder, full
adder, half subtractor, full subtractor, multiplexer, demultiplexer, encoder, decoder,
priority encoder, serial adder, parallel adder, ripple and look ahead carry adders, Flip
flops – RS, JK, T, D, edge and level trigger flip flops, excitation tables, counter –
synchronous and asynchronous, up down – design, Analysis of sequential networks,
derivation of state graphs and tables.

Shift register – SISO, SIPO, PIPO, PISO, universal shift register, timing diagram,
Johnson and Ring counter. Memory – RAM, ROM, FLAASH, NVRAM, EPROM,
EEPROM, EDORAM, Memory organization.

Logic families – fundamentals of RTL, ECL, DTL, IIL and TTL transfer
characteristics Fan in and Fan out, propagation delay, Schottkey and other TTL gates,
CMOS inverter – stepped power product. Tri state logic, open collector and wired
logic.
ADC and DAC – R – 2R ladder binary weighted, accuracy, resolution, conversion
speed, offset error, ADC sample and hold, error of ADC, flash converter, successive
approximation and dual slope.
Microprocessors – 8086 architecture – addressing modes – instruction set – programs
– Interrupts – maximum and minimum modes, interfacing chips – 8255, 8359, 8251,
8279, 8254, 8257.
Basics of 80286 and 80386 – 8051 Micro controller – architecture – interrupt –
instruction set, programs.

Module V : Communication Engineering – (18 MARKS)

Classification of signals, elementary signal, LTI system, Noises, Different types of
Noises, Signal to noise ratio, Shannon theorem, entropy, baud rate, maximum channel
capacity.
Electromagnetic radiation and wave propagation – ground, sky, space waves,
polarization, atmospheric layers and its characteristics.
Amplitude modulation – Analysis, generation and detection of AM signals, DSB,
SSB, VSB.
AM transmitter – TRF and Super hetrodyne receiver, noise analysis of AM receiver.
Frequency modulation – narrow band and wide band FM, generation of FM signals,
direct and indirect methods, FM demodulation techniques, Noise in FM receiver, preemphasis and de-emphasis.
Phase modulation – basics of phase modulation.
DSP – Discrete Fourier transforms – properties of DFS, decimation in time, frequency
algorithm, FFT algorithm for a composite number, Signal Flow graph, digital filter
design, antennas, half wave, folded dipole, microwave antenna, rhombic, parabolic,
Yagi-Uda, horn, helical antenna.
Television transmission – interlaced scanning, composite video signals, audio
modulation, working principles of picture tubes.
Television Camera – different types – working principle – CCD camera. NTSC and
PAL colour system, Basic idea TV transmitter and receiver, PAL and NTSC decoder,
basic ideas on digital TV, HD TV and satellite TV receiver. Basic of optical and
satellite communication.
Digital Modulation techniques – sampling theorem, PCM, PAM, PPM, PWM
generation and demodulation. ASK, FSK, PSK, MSK, QPSK, BPSK generation and
demodulation.
Multiplexing Techniques – Basic of CDMA, TDMA, FDMA, Spread spectrum,
frequency hopping, fading, GSM, GPRS, Blue tooth basics.
Microwave devices – Klystron, Magnetron, TWT, SWR, Impatt, Trapatt diodes.
Radar – different types, basic operation, range equation.
Basic of GPS.

Module VI: Power Electronic, Opto Electronic, PLC and Measuring Equipments (10 MARKS)

Thyristors – different types – SCR, UJT, TRIAC, DIAC, SCS, IGBT – working
principle and characteristics. Triggering and commutation schemes – different types.
Converters – series and parallel, Inverters – single phase and three phase, choppers,
cycloconverter. Different types of industrial heating, electronic wielding, industrial
applications of ultrasonic, SMPS, servo controlled voltage stabilizer, 3 pin IC
regulators.
Basics of PLCs, characteristics of LDRs, photo diode, photo transistor, photo voltaic
cell, photo detector, LED, opto coupler, and laser diodes and optical amplifiers.
Multimeter – working principle, characteristics, accuracy, sensitivity, selectivity,
resolution, Construction of CRTs working principle of DSO and spectrum analyser.
Working principle of LED, LCD plasma displays, logic probes, and logic analysers.

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