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:
Mar. 23, 1976
Filed:
Sep. 23, 1974
Applicant:
Inventor:
Peter Juodikis, Chicago, IL (US);
Assignee:
GCA Corporation, Bedford, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3072 / ; 3072 / ; 323 18 ;
Abstract
In the power controller disclosed herein, a load is energized from an a.c. line through a triac. When the triac is triggered on an a.c. half-cycle of one polarity, a capacitor is charged while the load is energized. The capacitor is interconnected with the gate circuit of the triac through an SCR and the charging circuit for the capacitor is arranged so as to trigger the SCR on the a.c. half-cycle following a half-cycle during which the capacitor was charged. Thus, the triac is selectively triggered on alternating half-cycles and integral cycle energization of the load is obtained.