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. 01, 1977
Filed:
Oct. 02, 1975
Applicant:
Inventors:
Andrew Gordon Dingwall, Somerville, NJ (US);
Bruce David Rosenthal, Highland Park, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330 35 ; 323-4 ; 330 19 ; 330 22 ;
Abstract
Unity current gain impedance transformation at the input of a field effect transistor current mirror amplifier reduces the input impedance and renders it independent of the mirror ratio. A net saving of semiconductor material may be obtained for a given mirror ratio and input impedance when the transformation is provided by a common gate connected complementary field effect transistor meeting certain effective threshold voltage and forward transfer conductance ratio requirements.