Global Patent Index - EP 1012941 A1

EP 1012941 A1 2000-06-28 - SHORT-CIRCUIT CURRENT LIMITER FOR A CONVERTER CIRCUIT WITH A CAPACITIVE ACCUMULATOR

Title (en)

SHORT-CIRCUIT CURRENT LIMITER FOR A CONVERTER CIRCUIT WITH A CAPACITIVE ACCUMULATOR

Title (de)

KURZSCHLUSSSTROMBEGRENZUNG FÜR EINE STROMRICHTERSCHALTUNG MIT EINEM KAPAZITIVEN SPEICHER

Title (fr)

LIMITEUR DE COURANT DE COURT-CIRCUIT POUR UN CIRCUIT CONVERTISSEUR COMPORTANT UN ACCUMULATEUR CAPACITIF

Publication

EP 1012941 A1 (DE)

Application

EP 98952521 A

Priority

  • DE 9802532 W
  • DE 19739551 A

Abstract (en)

[origin: DE19739551A1] The invention relates to a short-circuit current limiter, comprising at least one power semiconductor switch (T1, ..., T6) with a corresponding free-wheeling diode (D1, ..., D6) as well as at least one capacitive accumulator (C), which create a short-circuit mesh in the event of a short circuit. According to the invention at least one passive semiconductor current limiter (12) made of silicon carbide is arranged in said short-circuit mesh. In this way, in the event of a short circuit the short-circuit current is limited in a very short time to the limit current (Ilimit) of the passive semiconductor current limiter (12) while placing very little load on the power semiconductor switch (T1, ..., T6).

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

H02H 7/122; H02H 9/02

IPC 8 full level (invention and additional information)

H02H 7/12 (2006.01); H02H 9/02 (2006.01)

CPC (invention and additional information)

H02H 7/1216 (2013.01); H02H 9/02 (2013.01)

Citation (search report)

See references of WO 9913548A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19739551 A1 19990311; EP 1012941 A1 20000628; WO 9913548 A1 19990318

INPADOC legal status


2003-09-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030311

2000-06-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000303

2000-06-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT