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Electronics and Communication Engineering - Power Electronics

Exercise : Power Electronics - Section 7
6.
In a half bridge inverter the gate pulses of the two thyristors have a phase displacement of
60°
90°
120°
180°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
A fully controlled bridge converter can operate in quadrants
1
1 and 2
1 and 3
1 and 4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
A class E chopper
can operate in second quadrant only
can operate in first or third quadrant
can operate in all the four quadrants
can operate in either second or third quadrant
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
A cycloconverter uses
natural commutation
forced commutation
either natural or forced commutation
both natural and forced commutation together
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.

Assertion (A): A fully controlled bridge converter can operate in first and fourth quadrant.

Reason (R): A semi converter is cheaper than a full converter.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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