1
GATE EE 2008
MCQ (Single Correct Answer)
+2
-0.6
In the circuit shown in the figure, the switch is operated at a duty cycle of $$0.5.$$ A large capacitor current is connected across the load. The inductor current is assumed to be continuous.
![GATE EE 2008 Power Electronics - Choppers and Commutation Techniques Question 10 English](https://gateclass.static.cdn.examgoal.net/3o9OQgup5iT1v1AcI/9a6FXSIxl6Nbvn0Wa5hSsznTXC2NH/zJCr09eNueBEjClPcf1Wap/uploadfile.jpg)
The average voltage across the load and the average current through the diode will respectively be
2
GATE EE 2007
MCQ (Single Correct Answer)
+2
-0.6
The circuit in the figure is current commutated $$dc$$ $$-$$ $$dc$$ chopper where, $$T{h_M}$$ is the main $$SCR$$ and $$T{h_AUX}$$ is the auxiliary $$SCR$$. The load current is constant at $$10$$ $$A.$$
$$T{h_M}$$ is $$ON$$
$$T{h_AUX}$$ is trigged at $$t=0.$$ $$T{h_M}$$ is turned $$OFF$$ between.
$$T{h_M}$$ is $$ON$$
$$T{h_AUX}$$ is trigged at $$t=0.$$ $$T{h_M}$$ is turned $$OFF$$ between.
![GATE EE 2007 Power Electronics - Choppers and Commutation Techniques Question 11 English](https://gateclass.cdn.examgoal.net/o53SNfz1tTuIZj6XH/QImWCdPhOLgIryf8KW41gkcyn6PnR/of7QUFZYlOFVLxVXOeMvxl/uploadfile.jpg)
3
GATE EE 2006
MCQ (Single Correct Answer)
+2
-0.6
A voltage commutated chopper operating at $$1$$ $$kHz$$ is used to control the speed of $$dc$$ motor as shown in figure. The load current is assumed to be constant at $$10$$ $$A.$$
![GATE EE 2006 Power Electronics - Choppers and Commutation Techniques Question 13 English](https://gateclass.cdn.examgoal.net/ZpOQ0zsQdSEqyZDZc/9AeuPjAHW0kwh04nqayZNBMYspDZT/jjCIc9bqUOSSIxe0XDkcwp/uploadfile.jpg)
The minimum time in $$\mu $$ sec for which the $$SCR$$ $$M$$ should be ON is
4
GATE EE 2006
MCQ (Single Correct Answer)
+2
-0.6
A voltage commutated chopper operating at $$1$$ $$kHz$$ is used to control the speed of $$dc$$ motor as shown in figure. The load current is assumed to be constant at $$10$$ $$A.$$
![GATE EE 2006 Power Electronics - Choppers and Commutation Techniques Question 12 English](https://gateclass.cdn.examgoal.net/ZpOQ0zsQdSEqyZDZc/9AeuPjAHW0kwh04nqayZNBMYspDZT/jjCIc9bqUOSSIxe0XDkcwp/uploadfile.jpg)
The average output voltage of the chopper will be
Questions Asked from Choppers and Commutation Techniques (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE EE 2024 (1)
GATE EE 2023 (1)
GATE EE 2022 (1)
GATE EE 2018 (2)
GATE EE 2017 Set 1 (1)
GATE EE 2017 Set 2 (1)
GATE EE 2015 Set 1 (3)
GATE EE 2015 Set 2 (1)
GATE EE 2014 Set 1 (1)
GATE EE 2013 (2)
GATE EE 2012 (1)
GATE EE 2011 (1)
GATE EE 2010 (2)
GATE EE 2009 (1)
GATE EE 2008 (1)
GATE EE 2007 (1)
GATE EE 2006 (3)
GATE EE 2005 (1)
GATE EE 2004 (2)
GATE EE 2003 (1)
GATE EE 2002 (1)
GATE EE 2000 (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