GATE EE 2017 Set 1 — Question 53
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Power Electronics → AC-DC Converters → Firing, Extinction & Overlap Angles
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Question
The figure below shows an uncontrolled diode bridge rectifier supplied from a , , 1-phase ac source. The load draws a constant current . The conduction angle of the diode in degrees (rounded off to two decimal places) is ______.
Correct answer
220 to 230
Solution
In a single-phase bridge rectifier with source inductance , the overlap angle is given by:Given , .
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, .The conduction angle of each diode in a bridge rectifier with source inductance is because the diode starts conducting at and continues until the current is fully commutated to the other pair at :
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, .The conduction angle of each diode in a bridge rectifier with source inductance is because the diode starts conducting at and continues until the current is fully commutated to the other pair at :
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