GATE EE 2014 Set 1 — Question 63
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Power Electronics → AC-DC Converters → Output Voltage & Ripple
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Question
The figure shows the circuit diagram of a rectifier. The load consists of a resistance and an inductance connected in series. Assuming ideal thyristor and ideal diode, the thyristor firing angle (in degree) needed to obtain an average load voltage of is ______
Correct answer
69 to 70
Solution
The circuit is a single-phase half-wave controlled rectifier with a freewheeling diode. For such a circuit, the average output voltage is given by:Given:
Substituting the values:
Substituting the values:
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