Paper-I
Circuit Theory: Circuit components; network graphs; KCL, KVL; circuit analysis methods: nodalanalysis, mesh analysis; basic network theorems and applications; transient analysis: RL, RC and RLCcircuits; sinusoidal steady state analysis; resonant circuits; coupled circuits; balanced 3-phase circuits;Two-port networks.
Signals & Systems: Representation of continuous-time and discrete-time signals & systems; LTIsystems; convolution; impulse response; time-domain analysis of LTI systems based on convolutionand differential/difference equations. Fourier transform, Laplace transform, Z-transform, Transferfunction. Sampling and recovery of signals DFT, FFT Processing of analog signals through discrete-time systems.
E.M. Theory: Maxwell's equations, wave propagation in bounded media. Boundary conditions,reflection and refraction of plane waves. Transmission line: travelling and standing waves, impedancematching, Smith chart.
Analog Electronics: Characteristics and equivalent circuits (large and small-signal) of Diode, BJT,JFET and MOSFET. Diode circuits: clipping, clamping, rectifier. Biasing and bias stability. FETamplifiers. Current mirror; Amplifiers: single and multi-stage, differential, operational, feedback andpower. Analysis of amplifiers; frequencyresponse of amplifiers. OPAMP circuits. Filters; sinusoidaloscillators: criterion for oscillation; single-transistor and OPAMP configurations. Function generatorsand wave-shaping circuits. Linear and switching power supplies.
Digital Electronics: Boolean algebra; minimization of Boolean functions; logic gates; digital ICfamilies (DTL, TTL, ECL, MOS, CMOS). Combina-tional circuits: arithmetic circuits, codeconverters, multiplexers and decoders. Sequential circuits: latches and flip-flops, counters and shift-registers. Comparators, timers, multivibrators. Sample and hold circuits, ADCs and DACs.Semiconductor memories. Logic implementation using programmable devices (ROM, PLA, FPGA).Energy Conversion: Principles of electromechanical energy conversion: Torque and emf in rotatingmachines. DC machines: characteristics and performance analysis; starting and speed control ofmotors; Transformers: principles of operation and analysis; regulation, efficiency; 3-phasetransformers. 3-phase induction machines and synchronous machines: characteristics and preformanceanalysis; speed control.
Power Electronics and Electric Drives: Semiconductor power devices: diode, transistor, thyristor,triac, GTO and MOSFET-static characteristics and principles of operation; triggering circuits; phasecontrol rectifiers; bridge converters: fullycontrolled and half-controlled; principles of thyristor choppersand inverters; DCDC converters; Switch mode inverter; basic concepts of speed control of dc and acMotor drives applications of variablespeed drives.
Analog Communication: Random variables: continuous, discrete; probability, probability functions.Statistical averages; probability models; Random signals and noise: white noise, noise equivalentbandwidth; signal transmission with noise; signal to noise ratio. Linear CW modulation: Amplitudemodulation: DSB, DSB-SC and SSB. Modulators and Demodulators; Phase and Frequencymodulation: PM & FM signals; narrowband FM; generation & detection of FM and PM, Deemphasis,Preemphasis. CW modulation system: Superhetrodyne receivers, AM receivers, communicationreceivers, FM receivers, phase locked loop, SSB receiver Signal to noise ratio calculation for AM and FM receivers.
Paper-II
Control Systems: Elements of control systems; block-diagram representation; open-loop & closedloopsystems; principles and applications of feed-back. Control system components. LTI systems: time-domain and transform-domain analysis. Stability: Routh Hurwitz criterion, root-loci, Bodeplots andpolar plots, Nyquist's criterion; Design of lead-lad compensators. Proportional, PI, PID controllers.Statevariable representation and analysis of control systems.
Microprocessors and Microcomputers: PC organisation; CPU, instruction set, register set, timingdiagram, programming, interrupts, memory interfacing, I/O interfacing, programmable peripheraldevices.
Measurement and Instrumentation: Error analysis; measurement of current, voltage, power, energy,power-factor, resistance, inductance, capacitance and frequency; bridge measurement. Signalconditioning circuit; Electronic measuring instruments: multimeter, CRO, digital voltmeter, frequencycounter, Q-meter, spectrum-analyzer, distortion-meter. Transducers: thermocouple, thermistor, LVDT,strain-gauge, piezo-electric crystal.
Power Systems: Analysis and Control: Steady-state performance of overhead transmission lines andcables; principles of active and reactive power transfer and distribution; per-unit quantities; busadmittance and impedance matrices; load flow; voltage control and power factor correction; economicoperation; symme-trical components, analysis of symmetrical and unsymmetrical faults. Concept ofsystem stability: swing curves and equal area criterion. Static VAR system. Basic concepts of HVDCtransmission.
Power System Protection: Principles of overcurrent, differential and distance protection. Concept ofsolid state relays. Circuit breakers. Computer aided protection: Introduction; line bus, generator,transformer protection; numeric relays and application of DSP to protection.
Digital Communication: Pulse code modulation (PCM), differential pulse code modulation (DPCM),delta modulation (DM), Digital modulation and demodulation schemes: amplitude, phase andfrequency keying schemes (ASK, PSK, FSK). Error control coding: error detection and correction,linear block codes, convolution codes. Information measure and source coding. Data networks, 7-layerarchitecture.