Power Electronics

Q1: A single phase semiconverter is feeding a highly inductive load. The circuit has a freewheeling diode across the load and firing angle is a. During one cycle of input voltage, the total duration of conduction of freewheeling diode is

A a

B 2 a

C 4 a

D 0.5 a

ANS:B - 2 a

Freewheeling diode conducts for a° in each half cycle.



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