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In a PWM inverter, if the frequency of the lowest harmonic is 180 Hz, then the frequency of the fundamental component would be ___________

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in Power Electronics by (27.1k points)
In a PWM inverter, if the frequency of the lowest harmonic is 180 Hz, then the frequency of the fundamental component would be ___________

(a) 50 Hz

(b) 60 Hz

(c) 540 Hz

(d) 90 Hz

I have been asked this question in exam.

The doubt is from PWM Inverters-4 topic in section Inverters of Power Electronics

1 Answer

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by (45.1k points)
The correct answer is (b) 60 Hz

The best I can explain: The 3rd harmonic is the lowest order harmonic,

Hence, 180/3 = 60 Hz.

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