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:
Dec. 31, 2002
Filed:
Nov. 16, 2001
Vadim Lubomirsky, Rochester, NY (US);
ENI Technology, Inc., Rochester, NY (US);
Abstract
A rectifier circuit powers three power conversion modules using a three phase AC input without a neutral connection. First, second and third bridge rectifiers are connected to first, second and third phases of the three phase AC input and produce first, second and third rectified waveforms, respectively. A connection between the first, second and third bridge rectifiers forms a virtual neutral. Capacitors are connected across the bridge rectifies to filter the rectified waveforms and to create a DC rail voltage. The DC rail voltages feed power conversion modules. Two of the three power conversion modules remain powered at a decreased voltage level when the remaining power conversion module fails. Inductors are connected between the bridge rectifiers and the capacitors to further smooth the DC rail voltages and increase the power factor. Alternately, inductors are connected between the phases of the three phase AC input and the bridge rectifiers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile