Question:
In a single-phase full converter, if output voltage has peak and average voltage values of 325V and 133V respectively, then the firing angle is
In a single-phase full converter, if output voltage has peak and average voltage values of 325V and 133V respectively, then the firing angle is
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For a single-phase full converter, the firing angle affects the average output voltage. The higher the firing angle, the lower the output voltage.
Updated On: May 4, 2025
- 40 degrees
- 50 degrees
- 140 degrees
- 130 degrees
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The Correct Option is B
Solution and Explanation
The firing angle \( \alpha \) for a single-phase full converter can be calculated using the relation between the average and peak values of the output voltage. Using the formula:
\[
V_{avg} = \frac{V_{peak}}{\pi} \times (1 + \cos(\alpha))
\]
Given \( V_{avg} = 133V \) and \( V_{peak} = 325V \), solving the equation for \( \alpha \) gives:
\[
\alpha = 50^\circ
\]
Thus, the correct answer is 50 degrees.
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