Patent · US Active

Transformer filter arrangement

US9509273B2 · kind B2 · utility

3Cited by

5References

18Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Stefan Andersson · Flyinge, SE
Fenghao Mu · Hjo, SE
Johan Wernehag · Malmö, SE

Key dates

Filing date	Jun 28, 2012
Grant date	Nov 29, 2016
Priority date	—
Expiry date	Jul 23, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH03H2001/0078
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A transformer filter arrangement including a transformer having a first winding and a second winding is provided. Both of the first and the second windings are located between an outer border and an inner border, which is inside the outer border. The transformer filter arrangement further includes at least one reactive sub circuit, each including at least one inductor. The first winding of the transformer is divided into a plurality of winding segments. At least a first one of the at least one reactive sub circuit being connected in series with the winding segments of the first winding between two such winding segments, and having at least one of the at least one inductor located inside said inner border.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.