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:
Dec. 13, 1977
Filed:
Aug. 26, 1976
James C Schmoock, San Jose, CA (US);
Raytheon Company, Lexington, MA (US);
Abstract
A temperature compensated, switchable current source wherein a Darlington pair of transistors in the output section of such current source is coupled to a source of switching signals through two electrical paths, each having a switching transistor and a diode network. The diode networks are arranged to produce a voltage variation at the input to the Darlington pair which varies inversely to the temperature variation developed across the base-emitter junctions of the Darlington pair of transistors. Coupling the Darlington pair of transistors to the source of switching signals through two switching transistors enables the current source to be rapidly driven from a conducting state to a nonconducting state in response to the switching signals.