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Increasing the number of pulses (N), ____________

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in Power Electronics by (27.1k points)
Increasing the number of pulses (N), ____________

(a) reduces the output voltage amplitude

(b) reduces the inverter efficiency

(c) improves the inverter efficiency

(d) none of the mentioned

The question was posed to me in an interview for job.

I'd like to ask this question from PWM Inverters-4 in section Inverters of Power Electronics

1 Answer

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by (45.1k points)
Correct option is (b) reduces the inverter efficiency

Explanation: Increasing N, increasing the switching frequency of the SCRs. This amounts to more switching losses and therefore efficiency lowers down.

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