The Department of Electrical Engineering offers Ph.D. programme in eight major areas namely-

Transmission line parameters; Representation of short, medium, and long transmission lines – ABCD parameters; Circle Diagram; Per Unit representation; 3-Φ system; Short Circuit Studies; Sequence Networks; Load-flow Studies – Gauss Seidel method, Newton-Raphson Method; Automatic Generation Control; Load-Frequency Control; Automatic Voltage Regulator; Power System Stability – Equal area criteria; Swing Equation; Optimal Load dispatch in Power System. Protection Schemes for Transformer, Generators and Transmission Lines.

Characteristics and ratings of different power electronics devices, their turn on and turn off methods with their protection. Controlled and uncontrolled single and three phase AC-DC Converters with R, R-L, R-L-E load. Controlled and uncontrolled single and three phase DC-AC Converters with R, R-L load. DC-DC converters and AC-AC converters and its control. Power Electronics Converters and its control for Solar, Wind and other renewable energy sources. Power Electronics Converters for HVDC, FACTS, Electric drives application, and Stability analysis of Power Electronics Converters.

Transformers: single & three phase; Construction, operation, performance calculations, Induction machines: single & three phase; Construction, operation, performance calculations & control, Three-phase Synchronous machines: Construction, operation, performance calculations & control, DC machines: Construction, operation, performance calculations & control

Mathematical Modelling of physical systems, Transfer function of linear systems, Steady state errors and error constants, static error coefficients Time domain analysis, Stability of control system, Routh-Hurwitz’s stability criterion. Root locus plots, analysis of control system by root loci. Relationship between time and frequency response, Polar plot, Bode’s Plot, Nyquist plot and Nyquist stability criterion, Relative Stability, Phase and Gain Margins, Constant M and N circle. Design of Feedback Controllers: Design of Proportional, Integral, Derivative, PI, PID controllers of first, second order systems. Control loop with auxiliary feedback, Feed forward control, Practical Controller tuning tips, Ziegler-Nichol’s tuning methods. Compensation design using Bode Diagram and Root Locus technique, Reshaping the Root Locus, Cascade Lag, Lead and Lag-Lead compensators. Sate Variable concepts, State model, State transition matrix, conversion of state-variable modes to transfer functions, conversion of transfer function to canonical state-variable models, solution of state equation, concepts of controllability and observability. Stability Improvement by state feedback, Necessary and sufficient conditions for arbitrary pole placement, State regulator theory, design of state observer, Servo design: Introduction of reference input by feed forward control. Recent advances in control system design technologies. Classification of Instruments, Moving iron, Moving Coil, Permanent magnet, and Dynamometer types. Thermal, Electrostatic Rectifier Instruments, transforms, CT, PT, Power measuring instruments, power factor, frequency meters and synchroscope. Measurement of low, medium and high resistances AC and DC measuring bridges, Magnetic measurement. General Transducers voltage, currant, phase angle, optical, Hall effect and Industrial transducers Electronic voltmeters, Vacuum Tube Voltmeter (VTVM), data acquisition system, spectrum analyses, sensors Measuring or sensing devising in different application, Generalized performance characteristics of the measuring instruments. Physical and chemical sensors, Principle of working of physical and chemical sensors, interface electronics circuits for instruments/sensor for data manipulation, transmission and recording Computer aided measurement of voltage current power energy frequency phase angle. High voltage measurement.

Soft Computing: Artificial neural network, fuzzy logic, genetic algorithm; Digital Electronics: Boolean algebra, Combinational and Sequential Circuit, Number representation & Computer Arithmetic; Computer Organization & Architecture: Machine instructions and addressing modes. ALU, data-path and control unit. Instruction pipelining. Memory hierarchy: cache, main memory and secondary storage; I/O interface (interrupt and DMA mode); Data Structures: arrays, linked list, graphs, queue, stacks, Searching, sorting, hashing. Asymptotic worst-case time and space complexity, Algorithm design techniques: greedy, dynamic programming and divide and conquer. Graph search, minimum spanning trees, and shortest paths; Object Oriented programming: classes and objects, inheritance, polymorphism; Operating Systems: Operating System Structure, management of resources Processes, threads, inter-process communication, concurrency and synchronization, Deadlock, CPU scheduling, Memory management and virtual memory. File systems; Data Communication and Networks: Concept of layering. LAN technologies (Ethernet). Flow and error control techniques, switching. IPv4/IPv6, routers and routing algorithms (distance vector, link state). TCP/UDP and sockets, congestion control. Application layer protocols (DNS, SMTP, POP, FTP, HTTP). Basics of Wi-Fi. Network security: authentication, basics of public key and private key cryptography, digital signatures and certificates, firewalls.

Biasing and bias stability of transistor and FET amplifiers. Amplifiers: single-and multistage, differential and operational, feedback, and power. Frequency response of amplifiers. Simple op-amp circuits. Filters. Function generators and wave-shaping circuits, 555 Timers. Power supplies. Logic gates; digital IC families (DTL, TTL, ECL, MOS, CMOS). Combinatorial circuits: arithmetic circuits, code converters, multiplexers, decoders, PROMs and PLAs. Sequential circuits: latches and flip-flops, counters and shift-registers. Sample and hold circuits, ADCs, DACs. Operational Amplifiers and other analog ICs., Semiconductor memories. Microprocessor(8085): architecture, programming and I/O interfacing. Amplitude and angle modulation and demodulation systems, spectral analysis of these operations, superheterodyne receivers. Signal-to-noise ratio (SNR) calculations for amplitude modulation (AM) and frequency modulation (FM) for low noise conditions. Fundamentals of information theory and channel capacity theorem. Digital communication systems: pulse code modulation (PCM), differential pulse code modulation (DPCM), digital modulation schemes: amplitude, phase and frequency shift keying schemes (ASK, PSK, FSK), matched filter receivers, bandwidth consideration and probability of error calculations for these schemes. Basics of TDMA, FDMA and CDMA and GSM.

Electrical Circuits, Signals and Systems, Analog and Digital Electronics, Sensors - resistive, capacitive, inductive, piezoelectric, Hall effect, electro chemical, optical; Sensor signal conditioning circuits; application of LASER in sensing and therapy. Origin of biopotentials and their measurement techniques- ECG, EEG, EMG, ERG, EOG, GSR, PCG, Principles of measuring blood pressure, body temperature, volume and flow in arteries, veins and tissues, respiratory measurements and cardiac output measurement. Medical equipment: sphygmomanometer, ventilator, cardiac pacemaker, defibrillator, pulse oximeter, hemodialyzer; Electrical Isolation and Safety of Biomedical Instruments. Instrumentation and image formation techniques in medical imaging modalities such as X-Ray, Computed Tomography, Magnetic Resonance Imaging, Ultrasound,

Fundamentals of biomedical devices, Dental Anatomy, Anatomy of Head and Neck, Dental Materials, Oral Medicine and Radiology, Oral and Maxillofacial Surgery, Periodontics, Prosthodontics including Crown and Bridge and Implantology, Conservative Dentistry, Orthodontics, Pedodontics and Children’s Preventive Dentistry, Oral Pathology and Microbiology, Oral Biology Community, Social and Preventive Dentistry, Public Health Dentistry.

Fundamentals of biomedical devices, human anatomy, human physiology including bio-physics, biochemistry, basics of cell, types of tissues and organ systems; homeostasis; basics of organ systems: musculoskeletal, respiratory, circulatory, excretory, endocrine, nervous, gastro-intestinal and reproductive, introduction to humanities & community medicine, forensic medicine including toxicology, dermatology and sexually transmitted diseases, orthopaedics, radiotherapy, ophthalmology, obstetrics and gynaecology, obstetrics and gynaecology, general medicine, general surgery, paediatrics, ear, nose, and throat, psychiatry, anaesthesiology.