HELPLINE NUMBER 8057871234 PAPER-II ELECTRICAL ENGINEERING PAPER-II-100 Questions-300 Marks 1. Power Electronics and Drives: Semiconductor, power, diodes, transistors, thyristors, triacs, GTOs, MOSFETs and IGBTs static characteristics and principles of operation, triggering circuits single phase and threephase controlled rectifiers-fully controlled and half controlled, smoothing and filters regulated power supplies, DC-DC choppers and inverters, speed control circuits for DC and A.C. drives, 2, Basics of electric drives: types, quadrant operation, reversing and braking of electric motors, estimation of power ratings, traction motors. 3. Digital Electronics: Boolean algebra, logic gates, combinational and sequencial logic circuits, multiplexers, muiltivibrators, sample and hold circuits, A/D and D/A converters, basics of filter circuits and applications, active filters, semiconductor memories. 4. Microwaves and Communication systems: Electromagnetic wave in guided media, wave guide components, resonators, microwave tubes, microwave generators and amplifiers. 5. Analog Communication basics: modulation and demodulation, noise and bandwidth, transmitters and receivers, signal to noise ratio, digital communication basics, sampling, quantizing, coding frequency- and time-domain multiplexing, sound and vision broadcast, antennas, transmission lines at audio and ultra-high frequencies. 6. Induction and special Machines: Three-phase Induction motors Rotating magnetic field, Torque-slip characterstics, Equivalent Circuit and determination of its parameters, starters, speed control, Induction generators. Single phase Induction motors: Theory and phasor diagrams, characteristics, starting and applications, repulsion motor, series motor: E.m.f. equation and phasor diagram and performance, servomotors, stepper motors, reluctance motors, brushless DC motors (BLDC). 7. Power system protection and Switchgear 8. NUMERICAL METHODS 9. microprocessor