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:
May. 30, 2006
Filed:
Apr. 19, 2004
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 limiter for limiting a transfer of energy between an input source and a regulated output of an output regulator. The output regulator having a regulator characteristic and a computed duty cycle for controlling the transfer of energy between the input source and the regulated output. The duty cycle limiter including a digital controller to generate a reference level and to compare the regulator characteristic of the output regulator to the reference level to determine a maximum duty cycle. The digital controller to control the reference level at a frequency at least equal to a switching frequency of the output regulator. The digital controller to limit the computed duty cycle to the maximum duty cycle.