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:
Aug. 23, 2016
Filed:
Jul. 23, 2014
Marvell World Trade Ltd., St. Michael, BB;
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 including memory to store a plurality of sets of values, where each set is used to control speed of a different type of motor. A pulse width modulation (PWM) module receives an input indicating a type of motor sensed in the system, selects a set corresponding to the type of the sensed motor, and generates, based on the selected set, a pulse width modulation signal to control speed of the sensed motor. A speed module receives a requested speed for the sensed motor and generates an output indicating a range of speed corresponding to the requested speed. The PWM module selects, based on the range of speed, a value from the selected set; shifts, based on the selected value, the pulse width modulation signal; and adjusts, based on the shifted pulse width modulation signal, the speed of the sensed motor by adjusting torque applied to the sensed motor.