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. 19, 2014
Filed:
Jun. 30, 2011
Applicants:
Kevin D'angelo, Santa Clara, CA (US);
Andrew Whyte, San Carlos, CA (US);
Gustavo Mehas, Mercer Island, WA (US);
Inventors:
Kevin D'Angelo, Santa Clara, CA (US);
Andrew Whyte, San Carlos, CA (US);
Gustavo Mehas, Mercer Island, WA (US);
Assignee:
Advanced Analogic Technologies Incorporated, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An integrated circuit contains a current sink that is used to control a channel of varying forward voltage, with a goal of maintaining a minimally sufficient voltage across the current sink. A target voltage for the current sink return is determined, and a switched inductor is used to maintain said voltage. Various target determination schemes are possible, and various enhancements improve startup time, efficiency, and effectiveness.