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.:

US 9705393 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 11, 2017

Filed:

Dec. 30, 2013
Applicant:

Qualcomm Technologies International, Ltd., Cambridge, GB;

Inventors:

Barnaby Golder, Ely Cambridgeshire, GB;

Peter Andrew Rees Williams, Cambridge, GB;

Sukanta Kishore Panigrahi, Cambridge, GB;

Timothy Charles Clapp, Sawston, GB;

Richard Andrew Wilkinson, Ely, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 1/00 (2006.01); H02M 3/158 (2006.01); H02M 1/088 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/088 (2013.01); H02J 1/00 (2013.01); H02M 3/158 (2013.01); H02M 3/1582 (2013.01); H02M 2001/0003 (2013.01); H02M 2001/009 (2013.01); Y10T 307/406 (2015.04);
Abstract

A method of operating a voltage regulator including a source voltage rail and a plurality of output voltage rails, the method including: converting a source voltage on the source voltage rail to a respective output voltage on each output voltage rail; selecting an output voltage rail; comparing the output voltage on the selected output voltage rail to a reference voltage for the selected output voltage rail; and if the output voltage of the selected output voltage rail is less than the reference voltage for the selected output voltage rail, controlling the voltage regulator to increase the output voltage on the selected output voltage rail, wherein the frequency at which an output voltage rail is selected is dependent upon the rate at which the voltage regulator has previously increased the output voltage on that output voltage rail.


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