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. 03, 1976
Filed:
Jul. 01, 1975
Applicant:
Inventor:
Dante E Piccone, Glenmoore, PA (US);
Assignee:
General Electric Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3072 / ; 3072 / ; 307305 ; 307318 ; 321 / ; 323 / ;
Abstract
A circuit for triggering a silicon controlled rectifier (SCR) when the voltage across the SCR has a predetermined polarity and exceeds a predetermined magnitude. The anode of a zener diode is connected to the SCR cathode and a resistor is connected between the SCR anode and the zener diode cathode. The voltage at the zener diode cathode acts as a bias for the trigger signal. A silicon unilateral switch responds to the biased trigger signal to trigger the SCR into the conductive state when the biased trigger signal level exceeds the switching voltage of the silicon unilateral switch.