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:
Apr. 22, 2008
Filed:
Feb. 02, 2005
Applicant:
Shengming Huang, Gourock, GB;
Inventor:
Shengming Huang, Gourock, GB;
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/40 (2006.01); G05F 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A low-dropout regulator is provided that includes a filter and a bandgap reference generator. The filter includes a resistive device and a capacitor. The bandgap reference generator is coupled to the filter and includes a resistive device controller. The resistive device controller is operable to control the resistive device in the filter. The bandgap reference circuit is operable to generate an unfiltered voltage reference, and the filter is operable to generate a filtered voltage reference based on the unfiltered voltage reference.