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In single-phase modulation of PWM inverters, the 5th order harmonic can be eliminated if the pulse width is made equal to ___________

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In single-phase modulation of PWM inverters, the 5th order harmonic can be eliminated if the pulse width is made equal to ___________

(a) 30°

(b) 36°

(c) 72°

(d) None of the mentioned

This question was posed to me in an online interview.

I'm obligated to ask this question of Harmonic Reduction topic in chapter Inverters of Power Electronics

1 Answer

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by (45.1k points)
The correct choice is (c) 72°

Easiest explanation: In single-phase modulation of PWM inverters, the nth harmonic can be eliminated, if the pulse width (2d) is made equal to (2π/n).

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