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. 26, 1978
Filed:
Jan. 17, 1977
Applicant:
Inventors:
Stanley S Kintigh, Minnetonka, MN (US);
Clarence D Lilienthal, Eden Prairie, MN (US);
Assignee:
Research Incorporated, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ; G05F / ;
U.S. Cl.
CPC ...
323 21 ; 3072 / ; 323 / ; 323 34 ;
Abstract
A controller for controlling SCR's used for supplying power to loads, which provides digital control of the phase angle of the firing signal for SCR's during rapidly changing frequency of applied power. The digital control is based upon clocking signals which are derived directly from the rotation of a generator to always provide a set number of pulses for each electrical cycle independent of time (frequency).