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Power Electronics
Choppers and Commutation Techniques
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Single and Three Phase Rectifier
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Power Semiconductor Devices
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Ac Voltage Controllers
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Inverters
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1
GATE EE 2001
MCQ (Single Correct Answer)
+1
-0.3
$$AC$$ to $$DC$$ circulating current dual converters are operated with the following relationship between their triggering angles $$\left( {{\alpha _1}} \right.$$ and $$\left. {{\alpha _2}} \right).$$
A
$${\alpha _1} + {\alpha _2} = {180^0}$$
B
$${\alpha _1} + {\alpha _2} = {360^0}$$
C
$${\alpha _1} - {\alpha _2} = {180^0}$$
D
$${\alpha _1} + {\alpha _2} = {90^0}$$
2
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
3
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
4
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
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Questions Asked from Marks 1
GATE EE 2022 (2) GATE EE 2018 (2) GATE EE 2017 Set 2 (3) GATE EE 2012 (1) GATE EE 2010 (1) GATE EE 2007 (2) GATE EE 2006 (1) GATE EE 2005 (1) GATE EE 2004 (2) GATE EE 2003 (1) GATE EE 2002 (1) GATE EE 2001 (1) GATE EE 2000 (1) GATE EE 1999 (1) GATE EE 1997 (1) GATE EE 1996 (1) GATE EE 1995 (2) GATE EE 1994 (2) GATE EE 1992 (1)
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