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Q#1 Phase Controlled Converter GATE EE 2001 MCQ +2 marks -0.66 marks

A single-phase full bridge voltage source inverter feeds a purely inductive load, as shown in figure, where , , ,  are power transistors and , , ,  are feedback diodes.  The inverter is operated in square-wave mode with a frequency of 50 Hz.  If the average load current is zero, what is the time duration of conduction of each feedback diode in a cycle?

Q50.jpg 

5 msec

10 msec

20 msec

2.5 msec

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