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:
May. 31, 1983
Filed:
Oct. 09, 1981
Applicant:
Inventor:
Johannes W Glasbergen, Hilversum, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330288 ;
Abstract
A circuit arrangement for reproducing in an output circuit (4) a current (i1) flowing in an input circuit (1) comprises a PNP-current mirror (2) to the input (2-1) of which the input circuit (1) is connected. The mirror output (2--2) is connected to the emitter of an output transistor (3) of the PNP-type the collector of which is connected to the output circuit (4). The base of the transistor (3) is connected to the input (5-1) of an NPN-current mirror (5), whose output (5-2) is connected to the input (2-1) of the PNP-current mirror (2), so that the effect of the base current (ib) of the transistor on its collector current will be compensated for.