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Electronics and Communication Engineering - Power Electronics

Exercise : Power Electronics - Section 5
31.
If the frequency is less than the damped frequency in a series- inverter
the distortion of output voltage waveform is low
the distortion of output voltage waveform is high
the distortion of output voltage may be high or low depending on the load impedance
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The output frequency of a cycloconverter can be changed by changing the firing angle.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Mc Murray full bridge inverter uses
4 thyristors and 2 diodes
4 thyristors and 4 diodes
8 thyristors and 4 diodes
8 thyristors and 8 diodes
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.

Assertion (A): A DIAC has four layers but only two terminals.

Reason (R): A DIAC can conduct in both directions.

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.
35.
In a 3 phase full converter, the instantaneous output voltage can have negative part if
firing angle is less than 60°
firing angle is less than 90°
firing angle is more than 60°
firing angle is more than 90°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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