Sunday, 12 October 2008

ELECTRICAL ENGINEERING

Electrical Circuits Theory and Application-Circuit components network graphs , KCL, KVL ; circuit analysis methods : nodal analysis mesh analysis : basic network theorems and applicatons: transient analysis :RL,RC and RLC circuits : sinusoidal steady state analysis resonant circuits and applications coupled ciruits and application : balanced 3 Phase circuits Two port network driving point and transfer function ; poles and zeros of network function.
Signals & Systems-Representation of continuous time and discretetime signals & system 's LTI system ; convolution impules response time domain analysis ok LIT system based on convolution and differential / difference equation Fourier transform, Laplace transform ,Z-transform Transfer function Sampling and recovery of signals.
Control System-Elements of control system ; block -diagram representations; open -loop & closed -loop system; principles and applications of feedback LTI system: time domain and transform domian analsis Stabilits: Routh Hurwiz criterion root -loci ,Nyquist 's criterion Bode-plots Design of lead -lag compensators; Proportional , Pl ,PID controllers.
E.M.Theory-Electro-static and megneto- static field; Maxwell's equation; e.m waves and wave and wave equation ; wave progagation and antemmas; transmission lines ; micro wave resonators, cavities and wave guides.
Electrical Engineering Materials-Electrical/electronic behaviors 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 .Megnetic materical : behaviour and application.
Analog Electronics-Diode circuits ; rectifiers filters, clipping and clamping zener diode and voltage regulation , Bipolar and field effect transistors (BJT, JFET and MOSFET) : Characteristics, bisaing and small signal equivalent circuits ,Basic amplifier circuits differential amplifier circuits. Amplifiers: analysis frequency response.Princples of feedback; OPAMP circuits; filters; oscillators.
Digital Electronice-Boolean algebre; minimiation 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 shiftregisters .Conparators, times , multivibrators. Sample and hold circuits ; ADCs and DACs .Semiconductor memories.
Communication Systems-Fourier analysis of signals: amplitude , phase and power spectrum , auto- correlation and cross- correlation and their Fourier transforms. Analog modulation system : amplitude and angle modulation and demodulation sysytem , spectral analysis ; superheterodyne receivers. Pulse code modulaion (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 ; digitqal modulation &demolution. Elements of information theory. channel capacity Elementsofsatellite andmobile communication principles of televisionengineering ; radar egineering 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 : B-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; dridge meaurements. Electronic measuring instruments : multimeter, CRO, digitral voltmeter, frequency counter; Q - meteerspectrum - analyser , distortion - meter. Transducers : thermocouple ,theermisor LVDT,
strain- guages, piezo - electric crystal . Use of teansducers in measure - ment ofnon - electrical quantities Data - acquisition saytems.
Energy Conversion-Single - phase transformer : equivalent circuit, Phasor-diagram , tests regulation and efficiency; three-phase transformer; auto transformer.Principle 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: performamce characteristic , regulation , parallel operation Sysnchronous motors: starting characteistics ,applications ; synchronous condensor .FHP motors, permanent magnet and stepper motors, brushless d.c motors, single phase motors.
Power Systems-Electric power generation : thermal hydro nuclear . Transmission line parameters: steady-state performance of overhead transmission line and cables. Distribution system : insulators, bundle conductors , corona and radio interference effects; per -unit quantites;bus admittance and impedance matrices ; load flow ; voltage control and power factor correction ,Economic operation .Principles of over current differential and distance protection ;Soild state relays , circuit breakers , concept of system stability .HVDC transmission.
Power Electronics and Electric Drives- semicnductor power devices:diode , transistor , thyristor, triac, GOT and MOSFET , static characteristics, principles of operation ; triggering circuits ; phase contrkolled rectifiers ; bridgeconverters-fully controlled and half controlled; princples of thyristor chopper and inverter. Basic of speed control of DC and Ac motor drives.
Elements of IC Fabrication Technology-Overview of IC Techonlolgy .Unit steps used in IC fabrication: wafer cleaning photolithography ,wet and dry etching , oxdidation diffusion ion-implantation , CVD and LPCVD techniques for deposition of polysilion , sillicon sillconpnitrde and sillion dioxide: metallisation and passivation.

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