Global Patent Index - EP 1317792 A1

EP 1317792 A1 2003-06-11 - FILTER CIRCUIT CONFIGURATION FOR A CONVERTER CIRCUIT

Title (en)

FILTER CIRCUIT CONFIGURATION FOR A CONVERTER CIRCUIT

Title (de)

FILTERSCHALTUNGSANORDNUNG FÜR EINE STROMRICHTERSCHALTUNG

Title (fr)

DISPOSITIF DE COUPLAGE D'UN FILTRE POUR MONTAGE CONVERTISSEUR

Publication

EP 1317792 A1 (DE)

Application

EP 01982266 A

Priority

  • DE 10044869 A
  • EP 0110418 W

Abstract (en)

[origin: WO0223705A1] The invention relates to a filter circuit configuration for a single-phase or three-phase converter circuit (7) for limiting the steepness of the switching voltage of the converter circuit (7) when changing potential. Said filter circuit configuration comprises at least one inductor (2) located at alternating current connections (1) of the converter circuit (7). An electrical load (6) and a voltage-limiting device (4) are connected to each inductor connection (3) provided at the inductor (2), and a filter capacitor (5) is provided between each of the inductor connections (3). In addition, the inductor (2) and the filter capacitor (5) in the filter circuit configuration are selected in such a manner that the resonance frequency (f>res<) of the filter circuit configuration is significantly greater than the switching frequency (f>s<) of the power semiconductor switch of the converter circuit (7).

IPC 1-7 (main, further and additional classification)

H02M 1/12; H02M 7/5387

IPC 8 full level (invention and additional information)

H02M 1/12 (2006.01); H02M 7/5387 (2007.01)

CPC (invention and additional information)

H02M 7/5387 (2013.01); H02M 1/12 (2013.01)

Citation (search report)

See references of WO 0223705A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0223705 A1 20020321; DE 10044869 A1 20020404; EP 1317792 A1 20030611; JP 2004509592 A 20040325

INPADOC legal status


2005-02-16 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20040817

2004-05-19 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040406

2003-06-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030315

2003-06-11 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR