Download GTU BE/B.Tech 2017 Winter 5th Sem Old 152403 Applied Power Electronics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2017 Winter 5th Sem Old 152403 Applied Power Electronics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (OLD) EXAMINATION ? WINTER 2017

Subject Code: 152403 Date: 08-11-2017
Subject Name: Applied Power Electronics
Time: 10:30 am to 01:00 pm Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Define Electrical Motor Drive. Draw and Explain block diagram of electric
motor drive system.
07
(b) Explain working of peak detector circuit with neat diagram. Draw relevant
waveforms.
07

Q.2 (a) What is PWM? Explain single pulse width modulation technique. Where
it is used?
07
(b) What is power electronics? Discuss concept of power processing. 07
OR
(b) Explain basic power diagram, working, advantages, disadvantages and
application of cycloconverter.
07

Q.3 (a) Explain working of HVDC transmission. 07
(b) Explain working of uninterrupted power supply (UPS) with block diagram. 07
OR
Q.3 (a) Explain op-amp based high pass filter circuit. Also draw its response 07
(b) Write short note on: Active power filter. 07

Q.4 (a) Explain off line UPS with basic block diagram. 07
(b) Draw and explain charging circuit for battery. 07
OR
Q.4 (a) Explain SMPS with necessary schematic diagram. 07
(b) Explain working of half wave controlled converter circuit. 07

Q.5 (a) Discuss induction heating as an industrial application. 07
(b) Write a brief note on high frequency fluorescent lighting. 07
OR

Q.5 (a) With block diagram, explain working of speed control DC Motor. 07
(b) Explain induction cooking with necessary block diagram. 07

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