Advanced Power Electronics (3170906) MCQs

MCQs of Resonant Converters

Showing 1 to 10 out of 11 Questions
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1.

The converter circuit which employs turn on and turn off when the voltage and/or current through the device is zero at the instant of switching is ____________
Answer:

Option (b)

2.

The factors governing the induction heating
Answer:

Option (d)

3.

Induction heating is a ___________ type of heating

(a)

zero frequency

(b)

high frequency

(c)

power frequency

(d)

none of these
Answer:

Option (b)

4.

In switch mode DC-DC converters switches are turned ON/OFF with full load current is known as

(a)

Hard Switching
(b)

Soft Switching
(c)

Resonant Switching
(d)

Quasi-Resonant Switching
Answer:

Option (a)

5.

Which of the following statement is incorrect about soft switching

(a)

High frequency operation is possible
(b)

Reduction inthe converter size
(c)

Less EMI as switching process isnotabrupt
(d)

Parasitic capacitance energy can not be recovered completely
Answer:

Option (d)

6.

In ZCS converter

(a)

Inductor is connected in series with the switch
(b)

Inductor is connected in parallel with the switch
(c)

Capacitor is connected in parallel with the switch
(d)

Capacitor is connected in series with the switch
Answer:

Option (a)

7.

In ZVS converter

(a)

Capacitor is connected across the switch
(b)

Capacitor is connected in series with the switch
(c)

Inductor is connected across the switch
(d)

Inductor is connected in series with the switch
Answer:

Option (a)

8.

In ZCS, _________________ oscillates.

(a)

Switch current
(b)

Switch voltage
(c)

Load current
(d)

Load voltage
Answer:

Option (a)

9.

In ZVS, _______________ resonates

(a)

Voltage across resonating capacitor
(b)

Current through resonating capacitor
(c)

Load voltage
(d)

Load current
Answer:

Option (a)

10.

In_______________, there are resonant and non-resonant operating intervals in the same switching-frequency time period.

(a)

Quasi-resonantconverters
(b)

Soft switching converter
(c)

Hard switching converter
(d)

None of these
Answer:

Option (a)

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