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:
Sep. 26, 2000
Filed:
Aug. 20, 1999
Applicant:
Inventor:
Pamela C Kwong, Whitehall, PA (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323316 ;
Abstract
A cascode current mirror for use as a biasing element or as a load device for amplifier stages in which the output resistance is increased so as to produce a substantially lower change in output current as supply voltages vary. The cascode current mirror incorporates an amplifier connected to provide negative feedback on the output cascode transistors in boosting the output resistance by a factor equal to the amplifier gain.