Electronics and Communication Engineering - Power Electronics - Discussion

5. 

A single phase semiconverter has a freewheeling diode. If the firing angle is a and the load is purely resistive, the periods of conduction and freewheeling respectively are

[A]. p - a and 0
[B]. p - a and a
[C]. p + a and 0
[D]. p + a and a

Answer: Option A

Explanation:

Freewheeling diode conducts only when load is inductive. If load is purely resistive free wheeling diode does not come into operation.


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