THREE-PHASE PWM SIGNAL GENERATING DEVICE AND THREE-PHASE VOLTAGE INVERTER DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a three-phase PWM signal generating device capable of readily prolonging a holding time of a switching pattern without having an additional device and with less restrictions on an output voltage range.;SOLUTION: The three-phase PWM signal generating device 8 includes a PWM signal generation unit 12 that generates a PWM signal using a combination of zero vectors obtained by switching based on four basic voltage vectors and a generation time ratio of the basic voltage vectors.;COPYRIGHT: (C)2011,JPO&INPIT