Power Electronics controlled rectifier solved example

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The discussion centers on a solved example involving a controlled rectifier in power electronics. A participant questions the calculation of the firing angle, suggesting it should be determined using the formula (alpha/firing angle) = 180 - 45. They argue that both 90 + 45 and 180 - 45 yield the same result, but prefer the latter method for clarity. The consensus is that the participant's reasoning is correct. This highlights the importance of understanding firing angle calculations in controlled rectifiers.
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Homework Statement


upload_2017-12-31_13-39-36.png


Homework Equations


Solved example

The Attempt at a Solution


I think the red part should be (alpha/firing angle) = 180 - 45
Here since the angle is 45, it makes no difference if you do 90 + 45 or 180 - 45, but i think it should be 180 - 45.
Am I right?
 

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Yes, I believe that you are correct.
 
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