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:
Nov. 22, 2011
Filed:
Mar. 13, 2009
Matti Laitinen, Kirkkonummi, FI;
Matti Laitinen, Kirkkonummi, FI;
ABB Oy, Helsinki, FI;
Abstract
A reactor arrangement for alternating electrical currents includes, for each alternating electrical current, different coils () for positive and negative half-cycles of that alternating electrical current. The negative and positive half-cycles of the alternating electrical current are directed to the different coils with the aid of unidirectional electrical components () such as, for example, diodes. All coils are arranged to magnetize a common magnetic core element () in a same direction. Therefore, from the viewpoint of the magnetization of the magnetic core element, the flowing directions of the alternating electrical currents are not significant. Hence, the common-mode inductance of the reactor arrangement has substantially a same value as the differential-mode inductance.