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:
Oct. 22, 2019
Filed:
Jan. 26, 2015
Applicant:
Chloride Srl, Castel Guelfo, IT;
Inventors:
Matteo Lo Torto, Florence, IT;
Graziano Galuppi, Imola, IT;
Assignee:
Vertiv S.R.L., Piove di Sacco, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 9/00 (2006.01); H02J 9/06 (2006.01); H02M 5/458 (2006.01); H02J 3/38 (2006.01);
U.S. Cl.
CPC ...
H02J 9/062 (2013.01); H02J 3/38 (2013.01); H02M 5/4585 (2013.01); Y10T 307/62 (2015.04);
Abstract
The present disclosure relates to method for use with a system having first and second uninterruptible power supplies (UPS 1 and UPS 2), and where the two UPSs are connected across a DC+ and a DC− terminal of a common battery, and where a neutral imbalance between neutral lines of the two UPSs has been corrected, giving rise to a current flow from a DC− bus of one of the UPSs to a DC− bus of the other one of the UPSs. The method corrects for a nominal DC reference voltage for one of the UPSs to eliminate the current flow to the DC− bus of the other UPS.