Physics · Power Electronics

Modulation index (M) in pulse width modulation is defined as:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1The ratio of the amplitude of the reference signal to the amplitude of the carrier wave✓
2The ratio of the amplitude of the carrier wave to the amplitude of the reference signal
3The product of the amplitude of the reference signal and the amplitude of the carrier wave
4The summation of the amplitude of the reference signal and the amplitude of the carrier wave

Correct answer

The ratio of the amplitude of the reference signal to the amplitude of the carrier wave

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