Exam Details
| Subject | Power Electronics | |
| Paper | ||
| Exam / Course | BTCVI / BTECVI / BTELVI | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2015 | |
| City, State | new delhi, |
Question Paper
Draw the volt-ampere, characteristic of SCR and explain its working.
Explain how a transistor can be used as a switching element. Also compare transistor and SCR as switching elements.
Draw the circuit diagram of a circulating type dual converter using midpoint configuration.
Discuss the working of a three-phase semi-converter with the help of a neat diagram.
Explain the operation of a step-up chopper and derive an expression for its output voltage.
A chopper circuit is operating at a frequency of 2 kHz on a 460 V dc supply. If the load voltage is 350 calculate the conduction and blocking period of the SCR in each cycle.
Discuss the working of a single-phase series inverter. Also give its limitations.
Explain the working of a PWM inverter with the help of a neat diagram.
Explain how the speed of a slip ring induction motor can be controlled by using the ON-OFF control method.
Explain why the dual converter method is superior to the rest of the methods for the purpose of regenerative braking.
Explain how the speed of induction motor can be controlled.
Compare the features of Power MOSFET and Power Transistor. Also draw their symbols and characteristics.
7. Write short notes on any two of the following:
IGBT
Slip power recovery scheme of induction motor
Current commutated chopper
Explain how a transistor can be used as a switching element. Also compare transistor and SCR as switching elements.
Draw the circuit diagram of a circulating type dual converter using midpoint configuration.
Discuss the working of a three-phase semi-converter with the help of a neat diagram.
Explain the operation of a step-up chopper and derive an expression for its output voltage.
A chopper circuit is operating at a frequency of 2 kHz on a 460 V dc supply. If the load voltage is 350 calculate the conduction and blocking period of the SCR in each cycle.
Discuss the working of a single-phase series inverter. Also give its limitations.
Explain the working of a PWM inverter with the help of a neat diagram.
Explain how the speed of a slip ring induction motor can be controlled by using the ON-OFF control method.
Explain why the dual converter method is superior to the rest of the methods for the purpose of regenerative braking.
Explain how the speed of induction motor can be controlled.
Compare the features of Power MOSFET and Power Transistor. Also draw their symbols and characteristics.
7. Write short notes on any two of the following:
IGBT
Slip power recovery scheme of induction motor
Current commutated chopper
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
- School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
- School of Performing Arts and Visual Arts (SOPVA)
- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
- School of Social Sciences (SOSS)
- School of Social Work (SOSW)
- School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
- School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
Subjects
- Advance Microprocessor And Architecture
- Analog and Mixed Mode VLSI Design
- Analog Communication
- Analog Electronic Circuits
- Analog Integrated Circuits Design
- Antennas and Propagation
- B10-Informatics
- Basics Of Electronics Engineering
- Computer Architecture
- Computer Communication Networks
- Control Engineering
- Data Communication And Network
- Device Modelling For Circuit Simulation
- Digital Electronics
- Digital Signal Processing
- Digital System Design
- Electromagnetic Field Theory
- Electronic Measurement and Inst
- Electronic Switching Circuits
- Embedded System Design
- Information Theory And Coding
- Linear Integrated Circuits
- Microcontrollers
- Microprocessor And Its Applications
- Microwave And Radar Engineering
- Multirate Systems
- Optical Fiber Communication
- Power Electronics
- Satellite And Tv Engineering
- Signal And Systems
- Wireless Communication