1
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
2
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
$$UJT$$
3
GATE EE 1994
Fill in the Blanks
+1
-0
A triac can be triggered by a gate pulse of __________ polarity
4
GATE EE 1993
MCQ (Single Correct Answer)
+1
-0.3
The thermal resistance between the body of a power semiconductor device and the ambient is expressed as
A
Voltage across the device divided by current through the device
B
Average power dissipated in the device divided by the square of the $$RMS$$ current in the device
C
Average power dissipted in the device divided by the temperature difference from body to ambient
D
Temperature difference from body to ambient divided by average power dissipated in the divice
GATE EE Subjects
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