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. 12, 2008
Filed:
Oct. 11, 2005
Sehat Sutardja, Los Altos Hills, CA (US);
Runsheng He, Sunnyvale, CA (US);
Jiancheng Zhang, Los Altos Hills, CA (US);
Sehat Sutardja, Los Altos Hills, CA (US);
Runsheng He, Sunnyvale, CA (US);
Jiancheng Zhang, Los Altos Hills, CA (US);
Marvell World Trade Ltd., St. Michael, BB;
Abstract
A duty cycle estimator determines a duty cycle for controlling a regulated output of an output regulator. The output regulator is responsive to the duty cycle for controlling a transfer of energy between an input source and the regulated output. An error generator compares the regulated output to an output reference to generate an output error. An accumulator determines an accumulated error of the output error over a time period of at least N times a switching period of the output regulator, where N is an integer. A reference generator generates reference levels. A comparator compares the accumulated error to the reference levels such that a single zero is generated, and generates the duty cycle based on the comparing.