Saturday, May 28, 2011

Power Electronics Questions [ Unit 1]


1) what are the functions of power modulator ?
2) Explain in brief the concepts of power electronics.
3) Mention two applications of power electronics.
4) How power converters are classified?
5) Explain the control characteristics of power devices.
6) Exlpain the steady state and switching charateristics of MOSFET.
7) Explain the the characteristics of IGBT . 
8) Compare BJT,MOSFET,IGBT .
9) Define the term pinch off voltage of MOSFET.
10) Explain the switching performance of BJT with relevant waveforms indicating clearly the turn-on, turn-off times and their components. Also define the term SOA.
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