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:
Nov. 08, 2016
Filed:
Feb. 10, 2010
Bin Zhao, Irvine, CA (US);
Bin Zhao, Irvine, CA (US);
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Abstract
A pulse width modulation (PWM) signal generator generates a PWM signal having a specified effective PWM duty resolution for a corresponding cycle window. The PWM signal generator receives an N-bit value representing a duty to be implemented and sets values X and Y to the M least significant bits and the N-M most significant bits, respectively, of the N-bit value. The value M can be determined based on the value N and a maximum implementable frequency of a clock signal used to time the generation of each PWM cycle. The PWM signal generator generates a cycle window of 2PWM cycles, each PWM cycle of the cycle window having a duty of either Y or Y+1. The number of PWM cycles in the cycle window having the duty Y+1 is based on the value X and the PWM cycles having a particular duty are contiguous within the cycle window.