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:
Oct. 27, 2015

Filed:

Mar. 07, 2013
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Burt L. Price, Raleigh, NC (US);

Dhaval R. Shah, Raleigh, NC (US);

Yeshwant Nagaraj Kolla, Wake Forest, NC (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); G05F 1/46 (2006.01); G05F 1/575 (2006.01);
U.S. Cl.
CPC ...
G05F 1/468 (2013.01); G05F 1/575 (2013.01);
Abstract

An adaptive low dropout (LDO) regulator includes a load-based bias controller that generates a bias control signal based on the output load current, and has a differential amplifier with a bias adjustment that receives the bias control signal and responds by adjusting a bias of a transistor within the adaptive LOD regulator. Optionally, the bias control signal is generated according to a hysteresis rule. Optionally, the adaptive LOD regulator includes an adaptive load-based compensation network having a zero, the zero having a location based, at least in part, one more of an adjustable resistance or capacitance value controlled by the load-based bias controller.


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