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Find the average output dc voltage of a single-phase semi-converter with Vs=230 V and firing angle of 30°. The converter is operating under continuous conduction.

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Find the average output dc voltage of a single-phase semi-converter with Vs=230 V and firing angle of 30°. The converter is operating under continuous conduction.

(a) 193 V

(b) 256 V

(c) 0 V

(d) 230 V

I had been asked this question at a job interview.

Enquiry is from Single Phase Semi-Converters-3 topic in portion Converters of Power Electronics

1 Answer

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by (45.1k points)
The correct option is (a) 193 V

Easy explanation: Vo = √2Vs (1+cosα)/π.

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