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Power Electronics

Q1:

A single phase half wave converter is used to charge a battery of 50 V. The thyristor is continuously fired by dc signal. Input voltage is v = Vm sin ωt. The thyristor will conduct

A from 0 to 180°

B when v > 50 V

C from 0 to 90°

D When v < 50 V

ANS:B - when v > 50 V

Thyristor can conduct only when it is forward biased. This occurs only when v > 50 V.



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