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. 21, 1983
Filed:
Feb. 02, 1981
Applicant:
Inventor:
Allen L Limberg, Titusville, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330288 ; 330289 ;
Abstract
A current amplifier comprises four like-conductivity transistors on a substrate of an integrated circuit with a first pair connected in current mirror amplifier configuration. The third and fourth transistors have their respective bases cross-coupled to the other's collector, and their respective collector-emitter paths interposed serially between the respective emitters of the first and third transistors and a common terminal. Adjustable resistances external to the substrate are serially interposed between the emitters of the third and fourth transistors and the common terminal for adjusting the current gain of the current amplifier.