Hindura moteri ya PWM yerekana moteri kumurongo wa sine woroheje hamwe na voltage nkeya isigaye, birinda kwangirika kwa moteri.Mugabanye phenomenon ya resonance iterwa na capacitance yagabanijwe no kugabura inductance bitewe nuburebure bwumugozi, kurandura moteri ya moteri iterwa na dv / dt nyinshi, kurandura ibyangiritse hakiri kare moteri yatewe nigihombo cya eddy, kandi akayunguruzo kagabanya kumvikana. urusaku rwa moteri.