MCQs of Switching Voltage Regulators (Advanced Power Electronics - 3170906)

Showing 31 to 40 out of 70 Questions

31.

Which of the following are the common disadvantages of SEPIC and Cuk Regulator?

(a)	Switch & Diode have to carry both input & output Currents
(b)	Short Circuit proof due to presence of C in between
(c)	Additional switches are required
(d)	Output is higher, lesser or equal to input

32.

Choose the correct options

(a)	Flyback regulator is a switching voltage regulator
(b)	Flyback regulator is bi-direction core excitation converter
(c)	Forward converter is non-isolated regulator
(d)	Forward converter is ac-dc converter

33.

Output of the flyback regulator depends on

34.

Transformer used in flyabck converter does not require an extra(third) winding.

(a)	False
(b)	True

35.

The reason behind the trapped energy in the transformer of forward converter is ________

(a)	Primary current becomes zero
(b)	Secondary current becomes zero
(c)	Simultaneous opening of both primary and secondary winding
(d)	Switch is turned on

36.

Forward converter is ______________

37.

The magnitude of magnetizing current at instant DT is Im0.

(a)	True
(b)	False

38.

In Flyback converter, which element does maintain the load current when the switch is open?

39.

Forward converter is better than flyback for the applications demanding beyond 200 watts of power.

(a)	True
(b)	False

40.

What happens in powering mode of forward converter?

(a)	Source feeds energy to load
(b)	L provides energy to load
(c)	Current through L gradually reduces
(d)	D1 stops conducting

Showing 31 to 40 out of 70 Questions