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:
Dec. 17, 2002
Filed:
Nov. 14, 2000
Applicant:
Inventor:
Dennis Eddlemon, Tucson, AZ (US);
Assignee:
Apex Microtechnology Corporation, Tucson, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/18 ;
U.S. Cl.
CPC ...
H03F 3/18 ;
Abstract
An amplifier circuit that includes an amplifier stage and an output stage, and local feedback between these stages to drive a biasing string associated with the amplifier stage using the potential at the output stage. In one embodiment, the local feedback line is coupled between the output stage and the biasing string to remove the loading effect of the biasing string on the amplifier stage. In another embodiment, the local feedback line is coupled between the switches of the amplifier stage and the switches of the output stage to bias the amplifier stage using the output stage.