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:
Jun. 23, 2009
Filed:
Dec. 19, 2006
Fokke Hoekstra, Drachten, NL;
Robert Zijlstra, Boelenslaan, NL;
Chris Van Kalken, Muralto, CH;
Rajendra Naik, Bangalore, IN;
Pradeep V, Bangalore, IN;
Fokke Hoekstra, Drachten, NL;
Robert Zijlstra, Boelenslaan, NL;
Chris van Kalken, Muralto, CH;
Rajendra Naik, Bangalore, IN;
Pradeep V, Bangalore, IN;
General Electric Company, Schenectady, NY (US);
Abstract
A UPS has a current sensor for controlling operation of a UPS main power circuit positioned in series with the AC supply voltage so as to measure the net current used by each component connected to the UPS main power circuit. Feedback from the current sensor received by a control circuit is used to achieve unity power factor operation with the UPS. The current sensor location and operation is adaptable to both single phase and three phase operation.