25-11-2013, 03:14 PM

Anna University

Department of Electrical and Electronics Engineering

Fifth Semester

EE2301 Power Electronics

(Regulation 2008)

Unit 1

1)static and switching characteristics of IGBT?(3 times repeated)

2)snubber circuit for BJT?(2 times repeated)

3)commutation circuits of SCR?(4 times repeated)

4)performance characteristics of SCR and MOSFET?(1 time)

5)dynamic characteristics of turn ON and turn OFF process of thyristers?(5 times repeated)

6)driver circuit and snubber circuit for MOSFET and IGBT?

Unit 2

1)effect of source inductance on performance of single phase full converter and derive the expression of o/p voltage?(2 times repeated)

2)principle of operation of single phase dual converter?(2 times repeated)

3)single phase 2 pulse bridge converter with RLE load?(2 times)

4)3phase semi converter?(1 time)

5)single phase full wave rectifier(problem)?

6)single phase bridge converter with R load(theory and problem)?

7)six pulse converter and derive the average o/p voltage ?

8)single phase 2 pulse bridge converter with RLE load (problem)?

9)3phase full converter with R load given firing angle alpha=60,90,150)?o/p voltage waveform?

10)single phase full bridge with RL load continuous and discontinuous modes of operation?

11)write short notes on battery charger?(8mark)

Unit 3

1)operation of step up chopper and derive the o/p voltage?problem also pathukonga(2 times)

2)operation of step down chopper and derive the o/p voltage?2 times

3)boost dc to dc converter expln the various modes of operation?

4)voltage commutated chopper problem,type A chopper (3 times)

5)SMPS (2 times)

6)buck regulator expln the various modes?

7)buck-boost regulator expln the various modes?

8)cuk regulator?

Unit 4

1)3phase voltge source inverter 120 mode?(2 times)

2)3phase voltage source inverter 180 mode?

3)various types of PWM method?(6 times) i)multiple PWM ii)sinusoidal PWM

4)single phase series resonant inverter?(2 times)

5)single phase current source inverter(ideal)?

6)single phase full bridge inverter(R RL load)?

7)harmonic reduction by transformer corner line and stepped wave inverter?

Unit 5

1)multistage,2 stage sequence control of AC voltage controller?(4 times)

2)single phase to single phase step down cycloconverter?

3)3phase to single phase cycloconverter?(3 times)

4)single phase full wave AC voltage controller with R load(theory and problem)?(3 times)

5)principle of integral of cycle control ?

6)3 phase to 3 phase cycloconverter?

Some of the Most Important 2 Marks :

PE 2 Marks - Nov Dec 2013.pdf (Size: 161.67 KB / Downloads: 780)

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