Advanced Power Electronics (3170906) MCQs

MCQs of Switching Voltage Regulators

Showing 51 to 60 out of 70 Questions
3 4 5 6 7
51.

How many biasing capacitors are required in Full Bridge Converter?

(a)

1
(b)

0
(c)

3
(d)

2
Answer:

Option (b)

52.

If input to half bridge converter is Vs, the amount of voltage stress appears across each switching device when it is in off condition

(a)

Vs
(b)

Vs
(c)

2 x Vs
(d)

0
Answer:

Option (a)

53.

In one cycle operation of half bridge converter, the conducting switch during interval - 3 is

(a)

M2
(b)

M1
(c)

M3 & M4
(d)

M1 & M2
Answer:

Option (a)

54.

The frequency of the ripple in the output current parameter of the half-bridge converter is ________ times than Buck - Boost Regulator.

(a)

Half
(b)

2 times
(c)

4 times
(d)

3 times
Answer:

Option (b)

55.

Is the working of the circuit, in mode - 3 and mode -4 operation of full bridge converter same?

(a)

Yes
(b)

No
Answer:

Option (a)

56.

The reason for flux imbalance in the transformer is

(a)

Improper center tapping
(b)

Difference in number of turns on secondary center tapping
(c)

Difference in number of turns on primary center tapping
(d)

All of these
Answer:

Option (d)

57.

How many uncontrolled semi-conductor devices are required in construction of half-bridge converter?

(a)

0
(b)

1
(c)

2
(d)

3
Answer:

Option (c)

58.

How many uncontrolled semi-conductor devices are required in construction of practically topology of forward converter?

(a)

1
(b)

2
(c)

3
(d)

4
Answer:

Option (c)

59.

Which of the following SMPS is preferable for the application demanding power approx. 1000 W?

(a)

Flyback
(b)

Push Pull
(c)

Forward
(d)

Full Bridge
Answer:

Option (d)

60.

A low-pass filter at the input of SMPS is used for

(a)

Power factor
(b)

Oscillations
(c)

Transients
(d)

Notch
Answer:

Option (a)

Showing 51 to 60 out of 70 Questions
3 4 5 6 7