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. 28, 1999
Filed:
Dec. 19, 1997
Applicant:
Inventors:
Jeff J Deloy, Central City, IA (US);
Walter H Hewett, Cedar Rapids, IA (US);
Assignee:
Rockwell International, Costa Mesa, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ; G05F / ; H02M / ; H02M / ;
U.S. Cl.
CPC ...
363 45 ; 363 89 ; 323222 ; 323288 ; 323283 ;
Abstract
A unity power factor power supply includes a boost converter. The boost converter draws current in phase with the input voltage by operating as a current regulator having a current reference control signal which tracks the line voltage waveform. A sample and hold technique is utilized to accommodate single cycle step input compensation and to reduce harmonic distortion over a wide input frequency range.