Global Patent Index - EP 0794539 B1

EP 0794539 B1 2000-05-31 - Toroidal inductance for radio interference suppression of phase-controllable semiconductor circuits

Title (en)

Toroidal inductance for radio interference suppression of phase-controllable semiconductor circuits

Title (de)

Ringdrossel zur Funkenstörung von Halbleiterschaltungen nach dem Phasenanschnittverfahren

Title (fr)

Inductance toroidale pour la suppression de parasites radiophoniques de circuits semi-conducteurs à commande par coupe de phase

Publication

EP 0794539 B1 (DE)

Application

EP 97102212 A

Priority

DE 19608891 A

Abstract (en)

[origin: EP0794539A1] The choke coil has a magnetic core made up of two weakly magnetic materials of different permeability and saturation induction. A ring shaped disk (4,5) is placed on at least one end of a ring core (1). The latter is formed of a stack of disks or from a wound strip of weakly magnetic material. The ring shaped disk (4,5) is made up of compressed flakes of amorphous or nanocrystalline alloys with addition of plastic binder. A ring shaped disk of compressed flakes may be fixed to each end of the ring core (3) of weakly magnetic material. The choke coil may be connected in series with a load and a control device operating according to the phase splitting process. The flakes may be arranged in the disk such that the length of the flakes runs in the direction of the flux.

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

H01F 3/10; H01F 17/06

IPC 8 full level (invention and additional information)

H01F 3/10 (2006.01); H01F 17/06 (2006.01)

CPC (invention and additional information)

H01F 17/062 (2013.01); H01F 3/10 (2013.01); H01F 2003/106 (2013.01)

Designated contracting state (EPC)

BE DE DK ES IT

EPO simple patent family

EP 0794539 A1 19970910; EP 0794539 B1 20000531; DE 19608891 A1 19970911; DK 0794539 T3 20001016; ES 2148854 T3 20001016

INPADOC legal status


2009-09-30 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20070212

2009-01-30 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20080902

2007-12-31 [BERE] BE: LAPSED

- Owner name: *VACUUMSCHMELZE G.M.B.H.

- Effective date: 20060228

2007-05-16 [REG ES FD2A] ANNOUNCEMENT OF LAPSE IN SPAIN

- Effective date: 20060213

2007-03-28 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20070328

- Year of fee payment: 11

2006-09-25 [REG DK EBP] PATENT LAPSED

2006-02-28 [PG25 BE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: BE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20060228

2006-02-28 [PG25 DK] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DK

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20060228

2006-02-28 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: IT

- Payment date: 20060228

- Year of fee payment: 10

2006-02-13 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: ES

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20060213

2005-02-24 [PGFP ES] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: ES

- Payment date: 20050224

- Year of fee payment: 9

2005-02-21 [PGFP DK] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DK

- Payment date: 20050221

- Year of fee payment: 9

2005-02-18 [PGFP BE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: BE

- Payment date: 20050218

- Year of fee payment: 9

2001-05-16 [26N] NO OPPOSITION FILED

2000-10-27 [EN] FR: TRANSLATION NOT FILED

2000-10-16 [REG ES FG2A] DEFINITIVE PROTECTION

- Document: ES 2148854 T3

2000-10-16 [REG DK T3] TRANSLATION OF EP PATENT

2000-08-22 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: STUDIO JAUMANN P. & C. S.N.C.

2000-07-06 [REF] CORRESPONDS TO:

- Document: DE 59701794 20000706

2000-05-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): BE DE DK ES IT

1999-09-15 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990802

1997-12-03 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19971006

1997-09-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE DK ES IT