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:
Aug. 04, 1981
Filed:
Dec. 10, 1979
Arthur J Leidich, Flemington, NJ (US);
RCA Corporation, New York, NY (US);
Abstract
A current flows between the collector and emitter electrodes of a transistor responsive to an operating potential being impressed between them, the emitter-base junction of the transistor being forward biased by leakage current flowing across its own collector-base junction. Increase of the current flow between the collector and emitter electrodes of the transistor beyond a desired level is precluded by sensing the current flow, applying the sensed current to a current-to-voltage converter, and applying the resultant voltage to the input of a threshold detector. The output circuit of the threshold detector shunts current away from the emitter-base junction of the transistor when the current flow between its collector and emitter electrodes tends to exceed its desired level thereby to cause the voltage applied to the input circuit of the threshold detector to exceed a predetermined threshold value.