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In case of stepped wave inverters,

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+1 vote
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in Power Electronics by (27.1k points)
In case of stepped wave inverters,

(a) both the transformers have 1:1 turns ratio

(b) both the transformers have 1:2 turns ratio

(c) both the transformers have different transformer ratio

(d) none of the mentioned

This question was addressed to me during an interview.

My question is based upon Harmonic Reduction topic in chapter Inverters of Power Electronics

1 Answer

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by (45.1k points)
Right answer is (c) both the transformers have different transformer ratio

Explanation: The two transformers have different turns ratio, hence, different voltages levels are obtained at the secondary’s which are the added to get the net output voltage with reduced harmonic content.

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