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:
Mar. 22, 1988
Filed:
Dec. 04, 1986
Applicant:
Inventors:
Pietro Menniti, Milan, IT;
Antonella Lanati, Pavia, IT;
Assignee:
SGS Microelettronica S.p.A., Catania, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; G05F / ;
U.S. Cl.
CPC ...
330288 ; 323315 ;
Abstract
A current gain stage with low voltage drop usable in place of a Darlington's current gain stage is described. This stage maintains the precision characteristics of the output current value, though presenting a lower voltage drop. The stage is formed by connecting the collector of the input transistor (driver) to a current mirror, the output current of which is added to the output current of the gain stage for maintaining the high precision.