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:
Jan. 23, 1990
Filed:
Oct. 12, 1988
Applicant:
Inventor:
Gordon E Flynn, Richmond, VA (US);
Assignee:
Power Distribution, Inc., Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323258 ; 323340 ;
Abstract
A voltage regulator for AC single phase and three phase systems. An output voltage is controlled by controlling a preset stepped addition to or subtraction from the input voltage. The controlled addition or subtraction is performed by a series injection transformer whose secondary is in series with the input voltage and whose primary is controlled by a microprocessor based switch matrix. The switch matrix imposes various voltage levels and phasing on the primary winding so as to produce a regulated system output voltage.