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:
Apr. 07, 1981
Filed:
Apr. 06, 1979
Adel A Ahmed, Clinton Township, Hunterdon County, NJ (US);
RCA Corporation, New York, NY (US);
Abstract
Regulated current sources of a type comprising first and second transistors of complementary conductivity types having respective input and output electrodes, the output electrode of each direct coupled to the input electrode of the other to complete a regenerative feedback loop tending to increase conduction in both transistors. The increased conduction of the second transistor is sensed by the input circuit of an amplifier exhibiting increasing gain for increased signal sensed by its input circuit. The output circuit of this amplifier is connected to the input electrode of the second transistor to complete a degenerative feedback loop which counteracts the regenerative feedback loop at prescribed current levels to establish the level of current regulation.