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:
Sep. 23, 1986
Filed:
Oct. 31, 1983
Applicant:
Inventor:
Varnum S Holland, Amherst, NH (US);
Assignee:
Unitrode Corporation, Lexington, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307288 ; 3072 / ; 307305 ; 307274 ; 357 38 ;
Abstract
An SCR having a reduced forward-voltage drop comprising an independently powered latch circuit driving an output transistor in combination with an additional turn-off transistor. The SCR provides saturated operation of the output transistor and self-commutation which allows for the SCR to turn-off. The present invention is particularly suitable for use in integrated circuit structures having additional circuit functions thereon.