Power Electronics
Choppers and Commutation Techniques
Marks 1Marks 2Marks 5
Single and Three Phase Rectifier
Marks 1Marks 2Marks 5
Power Semiconductor Devices
Marks 1Marks 2
Ac Voltage Controllers
Marks 1Marks 2Marks 5
1
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
2
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
3
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
4
GATE EE 1995
MCQ (Single Correct Answer)
+1
-0.3
A single phase diode bridge rectifier supplies a highly inductive load. The load current can be assumed to be ripple free. The ac supply side current waveform will be:
A
sinusoidal
B
constant dc
C
square
D
triangular
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits
Electrical and Electronics Measurement