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In the circuit, let Im be the peak value of the sinusoidal source current. The average value of the diode current for the below given configuration is

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In the circuit, let Im be the peak value of the sinusoidal source current. The average value of the diode current for the below given configuration is

(a) Im

(b) Im/2

(c) Im/π

(d) Im/√2

I had been asked this question in an internship interview.

Question is from 1P-Diode Rectifier FW-1 topic in section Diode Rectifiers of Power Electronics

1 Answer

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Correct answer is (b) Im/2

The explanation: The peak current through the diodes is same as that passing from the load. Each diode pair conducts for 180 degrees. Hence, 1/2 of a cycle. Average current = Im/2.

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