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.

Date of Patent:
Mar. 15, 2016

Filed:

Mar. 14, 2013
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Ricardo T Goncalves, Chandler, AZ (US);

Troy Stockstad, Chandler, AZ (US);

Joseph D Rutkowski, Chandler, AZ (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); H02M 3/158 (2006.01); H02M 1/08 (2006.01); H02M 3/155 (2006.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02M 1/08 (2013.01); H02M 3/155 (2013.01); H02M 2001/0003 (2013.01); H02M 2001/0045 (2013.01);
Abstract

The present disclosure includes systems and methods for 100% duty cycle in switching regulators. A switching regulator circuit includes a ramp generator to produce a ramp signal having a period and a comparator to receive the ramp signal and an error signal, and in accordance therewith, produce a modulation signal. In a first mode of operation, the ramp signal increases to intersect the error signal, and in accordance therewith, changes a state of a switching transistor during each period of the ramp signal. In a second mode of operation, the error signal increase above a maximum value of the ramp signal, and in accordance therewith, the switching transistor is turned on for one or more full periods of the ramp signal.


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