ATE535920T1 - CORE FOR CONTROLLED INDUCTIVE DEVICE - Google Patents

CORE FOR CONTROLLED INDUCTIVE DEVICE

Info

Publication number
ATE535920T1
ATE535920T1 AT04775086T AT04775086T ATE535920T1 AT E535920 T1 ATE535920 T1 AT E535920T1 AT 04775086 T AT04775086 T AT 04775086T AT 04775086 T AT04775086 T AT 04775086T AT E535920 T1 ATE535920 T1 AT E535920T1
Authority
AT
Austria
Prior art keywords
magnetic
winding
cylinders
members
core
Prior art date
Application number
AT04775086T
Other languages
German (de)
Inventor
Espen Haugs
Frank Strand
Original Assignee
Magtech As
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 Magtech As filed Critical Magtech As
Application granted granted Critical
Publication of ATE535920T1 publication Critical patent/ATE535920T1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • H01F1/348—Hexaferrites with decreased hardness or anisotropy, i.e. with increased permeability in the microwave (GHz) range, e.g. having a hexagonal crystallographic structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Coils Or Transformers For Communication (AREA)
  • General Induction Heating (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Electronic Switches (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

A variable inductor device comprises a magnetic core with first and second coaxial and concentric cylindrical members 101, 102 formed from magnetic material which are arranged with a high permeability direction and a lower permeability direction. The ends of the cylindrical members 101,102 are magnetically interconnected by end coupling members 105, 106. A first winding 103 is wound around both of the magnetic cylinders with an axis perpendicular to that of the cylinders. A second winding 104 is wound around at least one of the cylindrical members and has an axis that coincides with that of the cylinders. The first winding 103 may provide a magnetic field which is aligned with the high permeability direction of the magnetic core and the second winding 104 may be orthogonal to the first winding and provide a magnetic field which is aligned with a lower permeability direction, or vise versa. A magnetic coupler device 105, 106 and a magnetic structure are also claimed. The magnetic coupler 105, 106 may be formed from anisotropic magnetic sheet or wire material and arranged to form a toroidal member for magnetically coupling two coaxial and concentric cylindrical magnetic core members. A non-magnetic spacer material may be used between the cylinders and the end couplers. The magnetic structure has two windings which are orthogonal to one another and act on a closed magnetic core formed from anisotropic material. The variable inductor device provides a low loss variable inductor for high power applications.
AT04775086T 2003-10-14 2004-10-13 CORE FOR CONTROLLED INDUCTIVE DEVICE ATE535920T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0324092A GB2407214A (en) 2003-10-14 2003-10-14 Variable inductor
PCT/NO2004/000308 WO2005036568A1 (en) 2003-10-14 2004-10-13 Controllable inductive device

Publications (1)

Publication Number Publication Date
ATE535920T1 true ATE535920T1 (en) 2011-12-15

Family

ID=29559294

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04775086T ATE535920T1 (en) 2003-10-14 2004-10-13 CORE FOR CONTROLLED INDUCTIVE DEVICE

Country Status (13)

Country Link
EP (1) EP1676284B1 (en)
JP (1) JP4630873B2 (en)
KR (1) KR101082576B1 (en)
CN (1) CN1868008B (en)
AT (1) ATE535920T1 (en)
BR (1) BRPI0415384A (en)
CA (1) CA2537700C (en)
EA (1) EA008971B1 (en)
ES (1) ES2378160T3 (en)
GB (1) GB2407214A (en)
HK (1) HK1092937A1 (en)
PT (1) PT1676284E (en)
WO (1) WO2005036568A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009136864A1 (en) * 2008-05-06 2009-11-12 Win Myint Hingert Electrical generator and electrical generation system
CN102203885A (en) * 2008-12-05 2011-09-28 Abb研究有限公司 A controllable reactor and fabrication method thereof
WO2013029688A1 (en) * 2011-09-02 2013-03-07 Alstom Technology Ltd Current limiter
CN103219141B (en) * 2013-04-27 2016-08-10 福州大学 The varindor that a kind of inductance value is controlled
DE102015119519B4 (en) * 2015-11-12 2021-11-11 Endress + Hauser Flowtec Ag Magnetic-inductive flow meter for measuring the flow rate or the volume flow of media in a pipeline
US9979273B2 (en) * 2016-05-19 2018-05-22 Abb Schweiz Ag Resonant converters with variable inductor
JP6479280B1 (en) * 2018-03-08 2019-03-06 三菱電機株式会社 Variable inductor circuit

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2883604A (en) * 1957-02-08 1959-04-21 Harry T Mortimer Magnetic frequency changer
GB1039553A (en) * 1964-02-14 1966-08-17 Nat Res Dev Automatic tuning arrangements
US3403323A (en) * 1965-05-14 1968-09-24 Wanlass Electric Company Electrical energy translating devices and regulators using the same
FR2344109A1 (en) * 1976-03-08 1977-10-07 Ungari Serge Transformer with laminated cylindrical core - has central core carrying windings and encircled by laminated outer core
US4210859A (en) * 1978-04-18 1980-07-01 Technion Research & Development Foundation Ltd. Inductive device having orthogonal windings
CA1118509A (en) * 1978-10-20 1982-02-16 Gerald Roberge Inductance variable
FR2452167A1 (en) * 1979-03-20 1980-10-17 Aerospatiale PROCESS FOR THE PRODUCTION OF A MAGNETIC FRAME WITH DIVIDED STRUCTURE AND REINFORCEMENT THUS OBTAINED
EP0018296B1 (en) * 1979-04-23 1984-04-25 Serge Ungari Coil or trellis utilisable in variable transformers, adjustable power or precision resistors, coding resistors, wound resistors, electric radiators and heat exchangers
JPS6386409A (en) * 1986-09-30 1988-04-16 Toshiba Corp Manufacture of wound core
JP2532514B2 (en) * 1987-10-05 1996-09-11 株式会社神戸製鋼所 Method of manufacturing magnetic anisotropic body
JPH0756848B2 (en) * 1989-02-27 1995-06-14 株式会社電研精機研究所 Iron core manufacturing method consisting of magnetic wire of noise cut transformer
JP2594776B2 (en) * 1995-04-21 1997-03-26 ティーディーケイ株式会社 Manufacturing method of amorphous alloy wound core
ATE326056T1 (en) * 1998-11-13 2006-06-15 Vacuumschmelze Gmbh MAGNETIC CORE SUITABLE FOR USE IN A CURRENT TRANSFORMER, METHOD FOR PRODUCING A MAGNETIC CORE AND CURRENT TRANSFORMER HAVING A MAGNETIC CORE
GB2361107A (en) * 2000-04-03 2001-10-10 Abb Ab Magnetic bias of a magnetic core portion used to adjust a core's reluctance
NO317045B1 (en) * 2000-05-24 2004-07-26 Magtech As Magnetically adjustable current or voltage regulating device
DE60217173T2 (en) * 2001-11-21 2007-10-04 Magtech A/S DEVICE WITH CONTROLLABLE IMPEDANCE
KR200399022Y1 (en) 2005-08-09 2005-10-18 김광석 Display position control device using gravity relieving device of vertical moving body
JP4316553B2 (en) * 2005-10-31 2009-08-19 三菱電機株式会社 Variable inductance device

Also Published As

Publication number Publication date
PT1676284E (en) 2012-03-06
WO2005036568A1 (en) 2005-04-21
ES2378160T3 (en) 2012-04-09
CA2537700C (en) 2013-11-26
EA200600771A1 (en) 2006-10-27
BRPI0415384A (en) 2006-12-12
JP2007508711A (en) 2007-04-05
CN1868008A (en) 2006-11-22
EP1676284A1 (en) 2006-07-05
JP4630873B2 (en) 2011-02-09
HK1092937A1 (en) 2007-02-16
GB0324092D0 (en) 2003-11-19
CA2537700A1 (en) 2005-04-21
EP1676284B1 (en) 2011-11-30
KR20070023623A (en) 2007-02-28
GB2407214A (en) 2005-04-20
KR101082576B1 (en) 2011-11-10
CN1868008B (en) 2011-08-17
EA008971B1 (en) 2007-10-26

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