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 1996
MCQ (Single Correct Answer)
+1
-0.3
Which of the following does not cause permanent damage of an $$SCR?$$
A
High current
B
High rate of rise of current
C
High temperature rise
D
High rate of rise of voltage
2
GATE EE 1995
Fill in the Blanks
+1
-0
Figure, show two thyristors each rated $$500A$$ (continuous) sharing a load current. Current through thyristor $$y$$ is $$120A.$$ The current through thyristor $$x$$ will be nearly __________ $$A.$$ GATE EE 1995 Power Electronics - Power Semiconductor Devices Question 33 English
3
GATE EE 1994
MCQ (Single Correct Answer)
+1
-0.3
A switched mode power supply operating at $$20$$ $$kHz$$ to $$100$$ $$kHz$$ range uses as the main switching element
A
Thysistor
B
$$MOSFET$$
C
Triac
D
$$UJT$$
4
GATE EE 1994
Fill in the Blanks
+1
-0
A triac can be triggered by a gate pulse of __________ polarity
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