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 1997
MCQ (Single Correct Answer)
+1
-0.3
If a diode is connected in anti - parallel with a thyristor, then
A
Both turn off power loss and turn off time decreases
B
Turn-off power loss decreases but turn - off -time increases
C
Turn-off power loss increases, but turn off time decreases
D
None of the above
2
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
Which semiconductor power device out of the following is not a current triggered device?
A
Thyristor
B
$$G.T.O$$
C
Triac
D
$$MOSFET$$
3
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
The Triac can be used only in
A
Inverter
B
Rectifier
C
Multiquadrant chopper
D
Cycloconverter
4
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
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