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:
Jun. 27, 2000
Filed:
Aug. 21, 1998
Applicant:
Inventor:
Sergio D Camerlo, Cupertino, CA (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323280 ; 323281 ; 323907 ;
Abstract
A precision voltage regulator comprises a three terminal regulator coupled to a voltage divider. The voltage divider has two composite resistors, each of which comprises a plurality of matched value resistors fabricated on a common substrate, mixed in series and parallel configurations. The resultant voltage divider produces a wide range of divider ratios, while preserving a divider ratio which is independent of temperature and tolerance effects.