1
GATE EE 2015 Set 1
Numerical
+1
-0
In the following chopper, the duty ratio of switch $$S$$ is $$0.4.$$ If the inductor and capacitor are sufficiently large to ensure continuous inductor current and ripple free capacitor voltage, the charging current (in Ampere) of the $$5$$ $$V$$ battery, under steady-state, is_____
![GATE EE 2015 Set 1 Power Electronics - Choppers and Commutation Techniques Question 37 English](https://gateclass.cdn.examgoal.net/djnsQOLnjWBDRtRt7/iN48jAj3kmyjM2BB9YdpTVWnBXEsS/0vtcBWChRgYSBwnpUxioSb/uploadfile.jpg)
Your input ____
2
GATE EE 2014 Set 2
Numerical
+1
-0
A step-up chopper is used to feed a load at $$400$$ $$V$$ $$dc$$ from a $$250$$ $$V$$ $$dc$$ source. The inductor current is continuous. If the ‘off’ time of the switch is $$20\,\,\mu s,$$ the switching frequency of the chopper in $$kHz$$
is ________.
Your input ____
3
GATE EE 2010
MCQ (Single Correct Answer)
+1
-0.3
The power electronic converter shown in the figure has a single-pole double-throw switch. The pole $$P$$ of the switch is connected alternately to throws $$A$$ and $$B.$$ The converter shown is a
![GATE EE 2010 Power Electronics - Choppers and Commutation Techniques Question 39 English](https://gateclass.static.cdn.examgoal.net/7Z6PWvAIJJ3jXsvCC/mUfQR6kDFCcCK47MPgbMba8nBY3Ih/hEM8VjesPh2TZW77ZbjgmB/uploadfile.jpg)
4
GATE EE 2002
MCQ (Single Correct Answer)
+1
-0.3
A step down chopper is operated in the continuous conduction mode in steady state with a constant duty ratio $$D.$$ If $${V_0}$$ is the magnitude of the $$dc$$ output voltage and if $${V_s}$$ is the magnitude of the $$dc$$ input voltage, the ratio $${{{V_0}} \over {{V_s}}}$$ is given by
Questions Asked from Choppers and Commutation Techniques (Marks 1)
Number in Brackets after Paper Indicates No. of Questions
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