Patent Number: 8,791,664

Title: Systems and methods for adaptive torque adjustment and motor control

Abstract: A system includes a target speed module and a pulse-width modulation (PWM) control module. The target speed module is configured to provide a first waveform based on a first speed setting for a motor. A start of a first cycle of the first waveform corresponds to at least one of a first current or a first voltage. The PWM control module is configured to shift a phase of the first waveform by a torque angle adjustment value to generate a second waveform. A start of a first cycle of the second waveform corresponds to at least one of a second voltage or a second current. The second voltage is greater than the first voltage, and the second current is greater than the first current. The PWM control module is configured to control the motor based on the second waveform.

Inventors: Krishnamoorthy; Ravishanker (Singapore, SG), Susanto; Edy (Singapore, SG), Teoh; Cheng Yong (Singapore, SG), Leong; Foo Leng (Singapore, SG)

Assignee: Marvell World Trade Ltd.

International Classification: H02P 27/00 (20060101)

Expiration Date: 7/29/12018