GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VI (OLD) EXAMINATION - WINTER 2018
Subject Name: Power Processing Circuits - I
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
(b) Explain 1-phase Controlled rectifier with R-L Load with suitable diagrams. (07)
Q.2 (a) Draw line side and load side voltage and current waveforms of 3-Phase uncontrolled rectifiers with purely resistive load and explain. (07)
OR
(b) Describe the modeling of a controlled rectifier. (07)
Q.3 (a) Discuss Class B type chopper. (07)
(b) Describe various control strategies for chopper circuit. (07)
Q.3 (a) Draw the circuit of Boost converter & explain it with necessary waveforms. (07)
(b) Explain Morgan’s chopper with necessary circuit diagram and waveforms. (07)
Q4 (a) Explain the circuit diagram of Flyback converter with necessary waveforms. (07)
(b) Describe operation of a Sepic converter. State its advantages. (07)
Q.4 (a) Explain the circuit diagram of Push - Pull converter with necessary waveforms. (07)
(b) Discuss the working principle of John’s chopper with necessary diagrams. (07)
Q.5 (a) Explain the basic concept of resonant switch converter circuit. (07)
(b) Discuss any one FOUR terminal IC based voltage regulator. (07)
Q.5 (a) Write short note on: - Class C type chopper. (07)
(b) Define following terms with necessary diagrams (07)
(1) Firing Angle
(2) Overlap angle
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VI (OLD) EXAMINATION - WINTER 2018
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Subject Code:162405 Date: 07/12/2018Subject Name: Power Processing Circuits - I
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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(b) Explain 1-phase Controlled rectifier with R-L Load with suitable diagrams. (07)
Q.2 (a) Draw line side and load side voltage and current waveforms of 3-Phase uncontrolled rectifiers with purely resistive load and explain. (07)
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(b) Give the comparison of ZVS and ZCS. (07)OR
(b) Describe the modeling of a controlled rectifier. (07)
Q.3 (a) Discuss Class B type chopper. (07)
(b) Describe various control strategies for chopper circuit. (07)
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ORQ.3 (a) Draw the circuit of Boost converter & explain it with necessary waveforms. (07)
(b) Explain Morgan’s chopper with necessary circuit diagram and waveforms. (07)
Q4 (a) Explain the circuit diagram of Flyback converter with necessary waveforms. (07)
(b) Describe operation of a Sepic converter. State its advantages. (07)
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ORQ.4 (a) Explain the circuit diagram of Push - Pull converter with necessary waveforms. (07)
(b) Discuss the working principle of John’s chopper with necessary diagrams. (07)
Q.5 (a) Explain the basic concept of resonant switch converter circuit. (07)
(b) Discuss any one FOUR terminal IC based voltage regulator. (07)
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ORQ.5 (a) Write short note on: - Class C type chopper. (07)
(b) Define following terms with necessary diagrams (07)
(1) Firing Angle
(2) Overlap angle
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