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Power Electronics Quiz Questions

This document contains 10 multiple choice questions about power electronics topics such as ideal power switches, converter voltage gains, switching losses, energy storage elements in converters, transistor properties, and snubber circuits. The questions cover topics including power switch polarity blocking, buck converter voltage gain, factors affecting switching power loss, the energy storage element in a Cuk converter, IGBT input impedance, BJT operation, diode carrier type, MOSFET carrier type, Schottky diode reverse recovery time, and the purpose of snubber circuits.

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44 views2 pages

Power Electronics Quiz Questions

This document contains 10 multiple choice questions about power electronics topics such as ideal power switches, converter voltage gains, switching losses, energy storage elements in converters, transistor properties, and snubber circuits. The questions cover topics including power switch polarity blocking, buck converter voltage gain, factors affecting switching power loss, the energy storage element in a Cuk converter, IGBT input impedance, BJT operation, diode carrier type, MOSFET carrier type, Schottky diode reverse recovery time, and the purpose of snubber circuits.

Uploaded by

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Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Q1 Ideal power switch can block voltage of

a. positive Polarity only


b. Negative Polarity only
c. Both Polarity
d. None of these

Q2 The voltage gain of the buck converter in DCM is

a. greater than D
b. less than D
c. equal to D
d. None of these

Q3 Switching Power loss of a Power Device linearly dependent on

a. Voltage
b. current
c. Frequency
d. all of these

Q4 In Cuk Converter the energy storage element is

a. Coupling Capacitor
b. Inductor
c. Filter Capacitor
d. All of these

Q5 IGBT has input impedance

a. Zero
b. infinite
c. finite
d. None of these
Q6 Bi-Polar Junction Transistor (BJT) is a

a. Current controlled device


b. Voltage controlled device
c. Space Charge controlled device
d. None of these

Q7 General Purpose Diode is a

a. minority carrier device


b. majority carrier device
c. Neutral carrier device
d. None of these

Q8 Metal Oxide Field Effect Transistor (MOSFET) is a

a. minority carrier device


b. majority carrier device
c. Neutral carrier device
d. None of these

Q9 The reverse recovery period trr of Schottky diode is normaly in the range of

a. milli sec.
b. micro sec.
c. neno sec.
d. None of these

Q10 Snubber Ckt. is used to

a. Protect the switching device


b. Reduces the switching losses in the device
c. Both i) & ii)
d. None

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