EE8552 Question Bank Power Electronics
EE8552 Question Bank Power Electronics Regulation 2017 Anna University free download. Power Electronics Question Bank EE8552 pdf free download.
Sample EE8552 Question Bank Power Electronics:
Design the switching model, equivalent circuit and switching waveforms and times of MOSFET. (15)
Design a suitable driver circuit for MOSFET which is used a switching device in AC to DC conversion circuit. (15)
Design the switching model, equivalent circuit and switching waveforms and times of IGBT. (15) EE8552 Question Bank Power Electronics
Design a suitable driver circuit and snubber circuit for SCR which is used a switching device in AC to DC conversion circuit.
Describe the UJT triggering circuit with neat sketch. (13)
(i) Discuss the different modes of operation of thyristor
with the help of its static V-I characteristics. (7) EE8552 Question Bank Power Electronics
(ii) Discuss why TRIAC is rarely operated in I quadrant with –ve gate current and in III quadrant with +ve gate current. (6)
(i) Snubber circuit for an SCR should primarily consist of capacitor only. But in practice a resistor is used in series with the capacitor, Why-Discuss. (7) EE8552 Question Bank Power Electronics
(ii) Discuss the turn off characteristics of SCR and explain
the mechanism of turn OFF. (6)
Summarize the various types of commutation circuits for SCR
(i) Explain the steady state and switching characteristics of MOSFET with aid of diagrams. (7) EE8552 Question Bank Power Electronics
(ii)Demonstrate the working of a complementary commutation. (6)
Examine the basic structure of IGBT and Explain its working .Give its equivalent circuit and explain the turn ON and turn OFF processes. (13)
(i) Explain and draw steady state and switching characteristics of SCR. (7)
(ii) With a neat diagram explain how the snubber circuit protects the MOSFET. (6) EE8552 Question Bank Power Electronics
(i) Analyze the constructional details of an SCR. Sketch its
schematic diagram and explain its operation. (7)
(ii) Explain turn-ON and turn-OFF characteristics of SCR. (6)
(i) Analyze the various types of power diodes. (7)
(ii) Explain and draw steady state and switching characteristics of SCR. (6) EE8552 Question Bank Power Electronics
Explain the principle of operation and characteristics of GTO
Design a suitable snubber circuit for BJT which is used as a
switching device in AC to DC conversion circuit.
| Subject name | POWER ELECTRONICS |
| Short Name | PE |
| Semester | 5 |
| Subject Code | EE8552 |
| Regulation | 2017 regulation |
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