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EE2301 Power Electronics - Unit 3 - Monthly Test - August 2012 Question Paper

Anna University

Department of Electrical and Electronics Engineering

Subject Code : EE2301




Subject Name : Power Electronics

Time : 1 Hour

Max Marks : 35
PART A     (5*2=10)

1. What is meant by time ratio control in dc-dc converters?
2. What is meant by buck regulator?
3. What is meant by resonant switching?
4. Compare ZVS and ZCS.
5. Give two applications of DC chopper-circuits.

PART B    

6.  Explain the operation of  ZCS with necessary waveform                       (9)      
7. a) Draw the circuit diagram of a buck converter and explain its operation with equivalent circuit for different modes and waveforms.             (16)    


(b) Explain the current limit control and time limit control chopper.    (16)

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super boss thanks for information

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