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:
Apr. 30, 2019
Filed:
Nov. 15, 2017
Abb Schweiz Ag, Baden, CH;
Marco Borgogni, San Giovanni Valdarno, IT;
Sauro Macerini, Frazione Levane, IT;
Massimo Garufi, Salerno, IT;
ABB Schweiz AG, Baden, CH;
Abstract
An inverter for a photovoltaic apparatus, said inverter comprising a DC electric bus having a plurality of electric lines forming corresponding DC input channels for said inverter. The inverter comprises a choke filter comprising a single magnetic circuit and a plurality of choke windings enchained with said magnetic circuit. Said choke windings are electrically connected in series with corresponding line conductors of said electric lines, which have a same voltage polarity. Said choke windings are arranged so that AC electric currents flowing along said choke windings generate magnetic fluxes having concordant directions. In a further aspect, the invention relates also to a choke filter for a DC electric bus of a photovoltaic apparatus.