1
GATE EE 2000
MCQ (Single Correct Answer)
+1
-0.3
A thyristorised three phase fully controlled converter feeds a $$dc$$ load that draws a constant current. Then the input $$ac$$ line current to the converter has
A
An $$r.m.s$$ value equal to the $$dc$$ load current
B
An average value equal to the $$dc$$ load current
C
A peak value equal to the $$dc$$ load current
D
A fundamental frequency component, whose $$r.m.s$$ value is equal to the $$dc$$ load current
2
GATE EE 1999
MCQ (Single Correct Answer)
+1
-0.3
Resonant Converter's are basically used to
A
Generate large peaky voltage
B
Reduce the switching losses
C
Eliminate harmonics
D
Convert a square wave into a sine wave
3
GATE EE 1997
MCQ (Single Correct Answer)
+1
-0.3
In a dual converter, the circulating current
A
Allows smooth reversal of load current, but increases the response time
B
Does not allow smooth reversal of load current, but reduces the response time
C
Allows smooth reversal of load current with improved speed of response
D
Flows only if there is no interconnecting inductor
4
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
In a $$3$$ - phase controlled bridge rectifier, with an increase of overlap angle the output $$dc$$ voltage
A
Decreases
B
Increases
C
Does not change
D
Depends upon load inductance
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