Question

Determine the distortion factor (μ) for a full bridge inverter with supply Vs = 60 V.

(a) 0.8

(b) 0.7

(c) 0.9

(d) 1

This question was posed to me in an interview.

I'd like to ask this question from Quality of Inverters in division Inverters of Power Electronics

Answer 1

Correct answer is (c) 0.9

The best explanation: V1 (rms) = 4Vs/π√2 = 54.02 V

rms value of output voltage Vr = Vs = 60 V.

μ = V1/Vr = 54.02/60 = 0.9.