Electrical Circuits-Theory and Applications
Circuit components, network graphs, KCL, KVL; circuit analysis methods :
nodal analysis, mesh analysis; basic network theorems and applications;
transient analysis : RL, RC and RLC circuits; sinusoidal steady state analysis;
resonant circuits and applications; coupled circuits and applications; balanced
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A D V E R T I S E M E N T
Two port networks, driving point and transfer functions; poles
and zeros of network functions.
Signals & Systems
Representation of continuous-time and discrete-time signals & system's ; LTI
systems; convolution; impulse response; time-domain analysis of LTI systems
based on convolution and differential/difference equations. Fourier transform,
Laplace transform, Z-transform, Transfer function. Sampling and recovery of
Elements of control systems; block-diagram representations; open-loop &
closed-loop systems; principles and applications of feed-back. LTI systems :
time domain and transform domain analysis. Stability : Routh Hurwitz criterion,
root-loci, Nyquist's criterion. Bode-plots, Design of lead-lag compensators;
Proportional, PI, PID controllers.
Electro-static and magneto-static fields; Maxwell's equations; e.m. waves and
wave equations; wave propagation and antennas; transmission lines; micro-wave
resonators, cavities and wave guides.
Electrical Engineering Materials
Electrical/electronic behaviour of materials : conductivity; free-electrons
and band-theory; intrinsic and extrinsic semi-conductor, p-n junction; solar
cells, super-conductivity. Dielectric behaviour of materials : polarization
phenomena; piezo-electric phenomena. Magnetic materials: behaviour and
Diode circuits: rectifiers filters, clipping and clamping, zener diode and
voltage regulation. Bipolar and field effect transistors (BJT, JFET and MOSFET)
: Characteristics, biasing and small signal equivalent circuits. Basic amplifier
circuits; differential amplifier circuits. Amplifiers : analysis, frequency
response. Principles of feedback; OPAMP circuits; filters; oscillators.
Boolean algebra; minimisation of Boolean function; logic gates, digital IC
families (DTL, TTL, ECL, MOS, CMOS). Combinational circuits : arithmetic
circuits, code converters, multiplexers and decoder's. Sequential circuits :
latches and flip-flops, counters and shift-registers. Comparators, timers,
multivibrators. Sample and hold circuits; ADCs and DACs. Semiconductor memories.
Fourier analysis of signals : amplitude, phase and power spectrum,
auto-correlation and cross-correlation and their Fourier transforms. Analog
modulation systems : amplitude and angle modulation and demodulation systems,
spectral analysis; superheterodyne receivers. Pulse code modulation (PCM),
differential PCM, delta modulation. Digital modulation schemes : amplitude,
phase and frequency shift keying schemes (ASK, PSK, FSK). Multiplexing :
time-division, frequency-division. Additive Gaussian noise : characterization
using correlation, probability density function, power spectral density,
Signal-to-noise ratio calculations for AM and FM. Elements of digital
communication systems : source coding, channel coding; digital modulation &
demodulation. Elements of Information theory, channel capacity. Elements of
satellite and mobile communication; principles of television engineering; radar
engineering and radio aids to navigation.
Computers and Microprocessors
Computer organization : number representation and arithmetic, functional
organization, machine instructions, addressing modes, ALU, hardwired and
microprogrammed control, memory organization. Elements of microprocessors :
8-bit microprocessors -architecture, instruction set, assembly level
programming, memory, I/O interfacing, microcontrollers and applications.
Measurement and Instrumentation
Error analysis; measurement of current voltage, power, energy, power-factor,
resistance, inductance, capacitance and frequency; bridge measurements.
Electronic measuring instruments: multimeter, CRO, digital voltmeter, frequency
counter, Q-meter, spectrum-analyser, distortion-meter. Transducers:
thermocouple, thermistor, LVDT, strain-guages, piezo-electric crystal. Use of
transducers in measurement of non-electrical quantities. Data-acquisition
Single-phase transformer : equivalent circuit, phasor-diagram, tests,
regulation and efficiency; three-phase transformer; auto transformer. Principles
of energy conversion-d.c. generators and motors: Performers characteristics,
starting and speed control armature reaction and commutation; three-phase
induction motor; performance characteristics, starting and speed control.
Single-phase induction motor. Synchronous generators: performance
characteristics, regulation, parallel operation. Synchronous motors: starting
characteristics, applications; synchronous condensor. FHP motors, permanent
magnet and stepper motors, brushless d.c. motors, single-phase motors.
Electric power generation : thermal, hydro, nuclear. Transmission line
parameters: steady-state performance of overhead transmission lines and cables.
Distribution systems : insulators, bundle conductors, corona and radio
interference effects; per-unit quantities; bus admittance and impedance
matrices; load flow; voltage control and power factor correction. Economic
operation. Principles of over current, differential and distance protection;
solid state relays, circuit breakers, concept of system stability. HVDC
Power Electronics and Electric Drives
Semiconductor power devices : diode, transistor, thyristor, triac, GTO and
MOSFET, static characteristics, principles of operation; triggering circuits;
phase controlled rectifiers; bridge converters-fully controlled and half
controlled; principles of thyristor chopper and inverter. Basic concept of speed
control of DC and AC motor drives.
Elements of IC Fabrication Technology
Overview of IC Technology. Unit steps used in IC fabrication : wafer
cleaning, photo-lithography, wet and dry etching, oxidation, diffusion,
ion-implantation, CVD and LPCVD techniques for deposition of poly-silicon,
silicon, silicon-pnitride and silicon dioxide; metallisation and passivation.