Global Patent Index - EP 2281341 A1

EP 2281341 A1 20110209 - LOSSY TRIPHASE LOW-PASS FILTER

Title (en)

LOSSY TRIPHASE LOW-PASS FILTER

Title (de)

VERLUSTBEHAFTETES DREIPHASIGES TIEFPASSFILTER

Title (fr)

FILTRE PASSE-BAS TRIPHASÉ AVEC PERTES

Publication

EP 2281341 A1 20110209 (DE)

Application

EP 09757344 A 20090401

Priority

  • EP 2009053849 W 20090401
  • DE 102008026869 A 20080605

Abstract (en)

[origin: WO2009146961A1] The invention relates to a lossy triphase low-pass filter (34) having a filter choke (18), a filter capacitor (20), and an attenuation element (32) per phase of said low-pass filter (34), wherein one filter capacitor (20) and one attenuation element (32) each are electrically connected in series. According to the invention, two diodes (36, 38) are provided as attenuation elements, which are electrically connected to each other in an anti-parallel manner. In this manner a lossy triphase low-pass filter (34) is obtained, the power loss of which is significantly reduced without any loss of the attenuation effect.

IPC 8 full level

H03H 1/00 (2006.01)

CPC (source: EP US)

H02M 1/126 (2013.01 - EP US); H03H 1/00 (2013.01 - EP)

Citation (search report)

See references of WO 2009146961A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

DE 102008026869 A1 20091210; DE 102008026869 B4 20141120; CN 102027677 A 20110420; CN 102027677 B 20170901; EP 2281341 A1 20110209; US 2011187480 A1 20110804; US 8743572 B2 20140603; WO 2009146961 A1 20091210

DOCDB simple family (application)

DE 102008026869 A 20080605; CN 200980117166 A 20090401; EP 09757344 A 20090401; EP 2009053849 W 20090401; US 99642309 A 20090401