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:
Dec. 19, 2006

Filed:

Jun. 08, 2004
Applicants:

Baker Scott, Boulder, CO (US);

Manbir Singh Nag, Oak Ridge, NC (US);

Inventors:

Baker Scott, Boulder, CO (US);

Manbir Singh Nag, Oak Ridge, NC (US);

Assignee:

RF Micro Devices, Inc., Greensboro, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/40 (2006.01); G05F 1/56 (2006.01); G05F 3/16 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
Abstract

A voltage regulator including a high-speed feedback loop operating to provide rapid settling time and a large Power Supply Rejection Ratio (PSRR). The high-speed feedback loop includes a reservoir capacitor that stores charge based on a charging current. The charge stored by the reservoir capacitor corresponds to a regulated voltage provided by the voltage regulator. When charge is drawn from the reservoir capacitor by a load, a dip occurs in the regulated output voltage. The high-speed feedback loop operates to restore the charge to the reservoir capacitor, thereby restoring the regulated voltage to its desired value. More specifically, when charge is drawn from the reservoir capacitor, the high-speed feedback loop operates to increase the first current, thereby restoring charge to the reservoir capacitor.


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