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Message: <blockquote data-quote="rasengan__" data-source="post: 739848">How exactly does the value of the PWM-Frequency of a 3-phase inverter contribute to the output voltage and current waveforms of the inverter? How can the choice of this frequency influence the output since at the end the duty cycle \$D\$ of this PWM is responsible for the respective output signal.\$ D = \frac{t_{on}}{t_{PWM}}\$Which means that the order of the switch on times(or HIGH time) \$t_{on}\$ of the PWM signal and the PWM-Period \$t_{PWM}\$ can effectively cancel out, implying that a \$D\$ of 50% can be acheived without the times being in microsecond range. Why would one make the effort of reaching such low time-domains?</blockquote>