Electrical Engineering · Power Electronics
Which statement is true regarding a single-phase half-bridge or full-bridge inverter under standard sinusoidal pulse width modulation (PWM)?
- 1The voltage waveform generated possesses quarter-wave symmetry around the time axis, making even harmonics absent and odd harmonics present.✓
- 2The voltage waveform generated is symmetrical around the time axis and the odd harmonics are absent.
- 3The voltage waveform generated is unsymmetrical around the time axis and the odd harmonics are absent.
- 4The voltage waveform generated is unsymmetrical around the time axis and the odd harmonics are present.
Correct answer
The voltage waveform generated possesses quarter-wave symmetry around the time axis, making even harmonics absent and odd harmonics present.
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