Advanced Power Electronics (3170906) MCQs

MCQs of Switching Voltage Regulators

Showing 11 to 20 out of 70 Questions
1 2 3 4 5 6
11.

The Primary function of the boost regulator is ________

(a)

To produce higher steady dc voltage
(b)

To produce higher steady dc current
(c)

To produce less steady dc voltage
(d)

To produce less steady dc current
Answer:

Option (a)

12.

What is the value of output voltage of boost regulator if Duty Ratio D is 0.5

(a)

Same as supply voltage
(b)

Two times the supply voltage
(c)

Half of the supply voltage
(d)

Four times the supply voltage
Answer:

Option (b)

13.

In Boost Regulator during one cycle operation, Current through the inductor L gradually decreases when

(a)

The switch is on
(b)

When the switch is off
(c)

When the diode is off
(d)

None of these
Answer:

Option (b)

14.

The output voltage of Boost regulator operating in discontinuous conduction mode depends on value of

(a)

L, T, Io
(b)

L, T, D, Io
(c)

L, T, D, Io, Vi
(d)

Only D
Answer:

Option (c)

15.

Can we control the output of Boost Regulator by controlling off time of the Switch?

(a)

Yes
(b)

No
(c)

Can' Say
Answer:

Option (a)

16.

Range of the duty cycle to produce output voltage grater than input for Buck-Boost Regulator is

(a)

0 to 1
(b)

0.5 to 1
(c)

-0.5 to 0.5
(d)

0 to 0.5
Answer:

Option (b)

17.

Can we get step up and down voltage from Buck-Boost regulator simultaneously?

(a)

Yes
(b)

No
Answer:

Option (b)

18.

Output voltage of Buck-Boost Regulator is ______

(a)

[D/(1-D)] x Vi
(b)

[-D/(1-D)] x Vi
(c)

[1/(1-D)] x Vi
(d)

[(1-D)/D] x Vi
Answer:

Option (b)

19.

In Buck-Boost Regulator, voltage across L during the on time of the switch is ________

(a)

Vo
(b)

Vi
(c)

Vi - Vo
(d)

- Vo
Answer:

Option (b)

20.

In Buck-Boost regulator current through D during the switch off is _______

(a)

0
(b)

Same as Switch current
(c)

Same as Supply current
(d)

Same as Inductor current
Answer:

Option (d)

Showing 11 to 20 out of 70 Questions
1 2 3 4 5 6