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Q#1 Inverter GATE EE 2025 MCQ +2 marks -0.66 marks

The 3-phase modulating waveforms  and , used in sinusoidal PWM in a Voltage Source Inverter (VSI) are

where  is the fundamental frequency. The modulating waveforms are compared with a 10 kHz triangular carrier whose magnitude varies between +1 and -1. The VSI has a DC link voltage of 600 V and feeds a star connected motor. The per phase fundamental RMS motor voltage, in volts, is closest to

169.71

300.00

424.26

212.13

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