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.

Date of Patent:
Dec. 28, 1982

Filed:

Feb. 02, 1981
Applicant:
Inventor:

Otto H Schade, Jr, North Caldwell, NJ (US);

Assignee:

RCA Corporation, New York, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H03F / ; H03F / ;
U.S. Cl.
CPC ...
330256 ; 330253 ; 330257 ; 330261 ;
Abstract

A current amplifier includes six transistors of like conductivity on a substrate, the first and second transistors being diode-connected to receive input current, and the third and fourth having their main conduction paths serially connected with those of the first and second transistors, respectively. The gates of the third and fourth transistors are cross coupled with their drains. The gate-source connections of the fifth and sixth transistors are respectively connected in parallel with the gate-source connections of the third and fourth transistors. A potentiometer connects the respective sources of the third and fourth transistors to a common terminal for adjusting the relative portion of the input current in the aforementioned main conduction paths, thereby to proportionally adjust the drain currents of the fifth and sixth transistors.


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