Electronics and Communication Engineering - Power Electronics - Discussion

50. 

A single phase half wave rectifier is feeding a resistive load. When a = 0, dc output voltage is 127 V. When a = 30°, the dc output voltage will be about

[A]. 127 V
[B]. 120 V
[C]. 110 V
[D]. 100 V

Answer: Option B

Explanation:

Using Eq

= 0.933.

Hence Vdc for 30° firing angle = 0.933 x 127 = ≈ 120 V.


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