The following is a conceptual diagram that describes a per-phase control method in a 3-phase sine wave PWM system. The external controller regulates a PWM signal, which is input to your device, by comparing a triangular carrier signal with a sine wave signal. If you need more details on parameters eligible for the Modulation Index and Motor Power Factor fields in the Motor Driver Specs pane, please see the conceptual diagram and equations listed below.
* The motor power factor, cosθ, rises as the motor output power increases, and is expressed as a value ranging from 0.7 to 1.0 at rated output power.
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■ Motor Driver Specs
* Select the product you use before entering the values for calculations.