The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2014
Filed:
Jan. 21, 2011
Ravishanker Krishnamoorthy, Singapore, SG;
Edy Susanto, Singapore, SG;
Cheng Yong Teoh, Singapore, SG;
Foo Leng Leong, Singapore, SG;
Ravishanker Krishnamoorthy, Singapore, SG;
Edy Susanto, Singapore, SG;
Cheng Yong Teoh, Singapore, SG;
Foo Leng Leong, Singapore, SG;
Marvell World Trade Ltd., St. Michael, BB;
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.