Advanced Power Electronics (3170906) MCQs

MCQs of Switching Voltage Regulators

Showing 1 to 10 out of 70 Questions
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1.

The expression for the output voltage of Buck-Regulator operating in continuous conduction mode is ________ (D is Duty Ratio, Vs is Supply Voltage)

(a)

D. Vs
(b)

Vs / D
(c)

D - Vs
(d)

[1/(1-D)]. Vs
Answer:

Option (a)

2.

Transient response is much better in Linear Voltage Regulator compared to Switching Voltage Regulator.

(a)

True
(b)

False
Answer:

Option (a)

3.

The full form of RFI is ____________

(a)

Radio Frequency Interference
(b)

Radio Frequency Intermediate
(c)

Resistor Frequency Intermediate
(d)

Resistor Freeup Interference
Answer:

Option (a)

4.

Harmonic Distortion is ____________

(a)

Noise in the signal
(b)

Signal having frequency in multiple of fundamental is added to main signal
(c)

All frequency distortion
(d)

None of these
Answer:

Option (b)

5.

Boost converter is unidirectional core excitation type of SMPS

(a)

True
(b)

False
Answer:

Option (b)

6.

Range of the Duty Ratio is ________________

(a)

0 to 1
(b)

0 to 100
(c)

-1 to 1
(d)

-100 to 100
Answer:

Option (a)

7.

The meaning of discontinuous conduction mode of operation of any voltage regulator means

(a)

Inductor current becomes zero before the end of the cycle.
(b)

Diode current becomes zero before the end of the cycle.
(c)

Switch current becomes zero before the end of the cycle.
(d)

Capacitor current becomes zero before the end of the cycle.
Answer:

Option (a)

8.

Boost regulator does not require the inductor L in the construction.

(a)

True
(b)

False
Answer:

Option (b)

9.

Boost regulator is the ___________ Converter

(a)

Step down only
(b)

Step up ony
(c)

Step up & down
(d)

inverted
Answer:

Option (b)

10.

Order of the Boost regulator is ________

(a)

First
(b)

Second
(c)

Third
(d)

Fourth
Answer:

Option (b)

Showing 1 to 10 out of 70 Questions
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