FR2442496A1 - Transformateur a entrefer - Google Patents

Transformateur a entrefer

Info

Publication number
FR2442496A1
FR2442496A1 FR7924244A FR7924244A FR2442496A1 FR 2442496 A1 FR2442496 A1 FR 2442496A1 FR 7924244 A FR7924244 A FR 7924244A FR 7924244 A FR7924244 A FR 7924244A FR 2442496 A1 FR2442496 A1 FR 2442496A1
Authority
FR
France
Prior art keywords
ferromagnetic
interface transformer
solid
ferromagnetic material
transformers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7924244A
Other languages
English (en)
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2442496A1 publication Critical patent/FR2442496A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/346—Preventing or reducing leakage fields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F2027/348—Preventing eddy currents

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Transformers For Measuring Instruments (AREA)
FR7924244A 1978-11-22 1979-09-28 Transformateur a entrefer Withdrawn FR2442496A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7811481A NL7811481A (nl) 1978-11-22 1978-11-22 Transformator met luchtspleet.

Publications (1)

Publication Number Publication Date
FR2442496A1 true FR2442496A1 (fr) 1980-06-20

Family

ID=19831933

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7924244A Withdrawn FR2442496A1 (fr) 1978-11-22 1979-09-28 Transformateur a entrefer

Country Status (7)

Country Link
JP (1) JPS5577115A (it)
DE (1) DE2946734A1 (it)
ES (1) ES253561Y (it)
FR (1) FR2442496A1 (it)
GB (1) GB2037089A (it)
IT (2) IT1163733B (it)
NL (1) NL7811481A (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10141343A1 (de) * 2001-08-23 2003-03-13 Siemens Ag Hochfrequenz-Einrichtung mit weichmagnetischem Kernmaterial und Verfahren zu deren Herstellung

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828985C1 (it) * 1988-08-26 1989-09-14 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Hollaend. Stiftung & Co Kg, 8510 Fuerth, De
US6211765B1 (en) 1990-02-27 2001-04-03 Tdk Corporation Coil device
JP2699020B2 (ja) * 1990-10-02 1998-01-19 ティーディーケイ株式会社 コイル装置
DE69120986T2 (de) * 1990-02-27 1996-12-12 Tdk Corp Spulenanordnung
JP2714997B2 (ja) * 1990-10-02 1998-02-16 ティーディーケイ株式会社 コイル装置
JP2699021B2 (ja) * 1990-10-02 1998-01-19 ティーディーケイ株式会社 コイル装置
US5210514A (en) * 1990-08-17 1993-05-11 Tdk Corporation Coil device
US5789907A (en) * 1991-03-29 1998-08-04 Top Gulf Coast Corporation Variable impedence transformer
US5376912A (en) * 1992-03-12 1994-12-27 Casagrande; Serge Combined transformer and inductor
DE19833190A1 (de) * 1998-07-23 2000-01-27 Bayerische Motoren Werke Ag Zündspule
US6417753B1 (en) 2000-02-17 2002-07-09 Koninklijke Philips Electronics N.V. Planar magnetic device without center core leg
DE50313456D1 (de) 2003-07-23 2011-03-17 Sts Spezial Transformatoren Stockach Gmbh & Co Ferritkern für ein Induktivitätsbauteil
US7701317B2 (en) * 2004-03-29 2010-04-20 The Trustees Of Dartmouth College Low AC resistant foil winding for magnetic coils on gapped cores
DE102006026466B3 (de) * 2006-06-01 2007-12-06 Siemens Ag Induktives elektrisches Element, insbesondere Transformator, Übertrager, Drossel, Filter und Wickelgut
US7746211B2 (en) * 2006-12-27 2010-06-29 General Electric Company Lamp transformer assembly
US7746001B2 (en) * 2007-04-27 2010-06-29 Plasma Technics, Inc. Plasma generator having a power supply with multiple leakage flux coupled transformers
AU2010261352B2 (en) 2009-06-15 2014-10-09 Ambixtra (Pty) Ltd Segmented core transformer
DE202011004121U1 (de) * 2011-03-17 2011-05-26 Roland Pechan GmbH & Co. KG, 04827 Induktives passives Bauelement, insbesondere Drossel
EP2530688A1 (en) * 2011-05-26 2012-12-05 Franc Zajc Flat band winding for an inductor core
US9287030B2 (en) 2011-05-26 2016-03-15 Franc Zajc Multi gap inductor core
DE102013225875A1 (de) * 2013-12-13 2015-07-02 Siemens Aktiengesellschaft Führung eines magnetischen Flusses

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR494559A (fr) * 1917-11-20 1919-09-12 Westinghouse Electric Corp Bobines de réactance limitatives de force
DE526175C (de) * 1927-03-23 1931-06-03 Siemens Schuckertwerke Akt Ges Betriebsmaessig regelbare Drosselspule mit beweglichem Jochstueck
US3187284A (en) * 1957-06-24 1965-06-01 Philips Corp Variable inductance device
DE1245487B (de) * 1963-05-24 1967-07-27 Westinghouse Electric Corp Verfahren zur Herstellung eines geblechten Eisenkernes fuer Transformatoren und Drosselspulen
FR1559121A (it) * 1968-01-26 1969-03-07
FR2013335A1 (it) * 1968-06-10 1970-04-03 Bbc Brown Boveri & Cie
FR2100142A5 (en) * 1970-07-02 1972-03-17 Iskra Z Za Avtomatiz Adhesives fillers of controlled diam - to keep substates a given distance apart
FR2389207A1 (fr) * 1977-04-25 1978-11-24 Vogt Gmbh & Co Kg Procede de realisation d'entrefers definis dans des circuits magnetiques

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR494559A (fr) * 1917-11-20 1919-09-12 Westinghouse Electric Corp Bobines de réactance limitatives de force
DE526175C (de) * 1927-03-23 1931-06-03 Siemens Schuckertwerke Akt Ges Betriebsmaessig regelbare Drosselspule mit beweglichem Jochstueck
US3187284A (en) * 1957-06-24 1965-06-01 Philips Corp Variable inductance device
DE1245487B (de) * 1963-05-24 1967-07-27 Westinghouse Electric Corp Verfahren zur Herstellung eines geblechten Eisenkernes fuer Transformatoren und Drosselspulen
FR1559121A (it) * 1968-01-26 1969-03-07
FR2013335A1 (it) * 1968-06-10 1970-04-03 Bbc Brown Boveri & Cie
FR2100142A5 (en) * 1970-07-02 1972-03-17 Iskra Z Za Avtomatiz Adhesives fillers of controlled diam - to keep substates a given distance apart
FR2389207A1 (fr) * 1977-04-25 1978-11-24 Vogt Gmbh & Co Kg Procede de realisation d'entrefers definis dans des circuits magnetiques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10141343A1 (de) * 2001-08-23 2003-03-13 Siemens Ag Hochfrequenz-Einrichtung mit weichmagnetischem Kernmaterial und Verfahren zu deren Herstellung

Also Published As

Publication number Publication date
IT1163733B (it) 1987-04-08
DE2946734A1 (de) 1980-06-04
IT7923178V0 (it) 1979-11-19
ES253561U (es) 1980-12-16
GB2037089A (en) 1980-07-02
ES253561Y (es) 1981-06-01
IT7927407A0 (it) 1979-11-19
NL7811481A (nl) 1980-05-27
JPS5577115A (en) 1980-06-10

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Legal Events

Date Code Title Description
ST Notification of lapse