GB0324092D0 - Controllable inductive device - Google Patents

Controllable inductive device

Info

Publication number
GB0324092D0
GB0324092D0 GBGB0324092.6A GB0324092A GB0324092D0 GB 0324092 D0 GB0324092 D0 GB 0324092D0 GB 0324092 A GB0324092 A GB 0324092A GB 0324092 D0 GB0324092 D0 GB 0324092D0
Authority
GB
United Kingdom
Prior art keywords
magnetic
winding
cylinders
members
permeability direction
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Withdrawn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
GBGB0324092.6A
Other versions
GB2407214A (en
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.)
Magtech AS
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
Priority to GB0324092A priority Critical patent/GB2407214A/en
Publication of GB0324092D0 publication Critical patent/GB0324092D0/en
Priority to PCT/NO2004/000308 priority patent/WO2005036568A1/en
Priority to CA2537700A priority patent/CA2537700C/en
Priority to KR1020067005315A priority patent/KR101082576B1/en
Priority to BRPI0415384-7A priority patent/BRPI0415384A/en
Priority to PT04775086T priority patent/PT1676284E/en
Priority to JP2006535293A priority patent/JP4630873B2/en
Priority to AT04775086T priority patent/ATE535920T1/en
Priority to ES04775086T priority patent/ES2378160T3/en
Priority to CN2004800299145A priority patent/CN1868008B/en
Priority to EA200600771A priority patent/EA008971B1/en
Priority to EP04775086A priority patent/EP1676284B1/en
Publication of GB2407214A publication Critical patent/GB2407214A/en
Priority to NO20062085A priority patent/NO331604B1/en
Priority to HK06113706.2A priority patent/HK1092937A1/en
Withdrawn legal-status Critical Current

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

  • Power Engineering (AREA)
  • Engineering & Computer Science (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)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electronic Switches (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Coils Of Transformers For General Uses (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.
GB0324092A 2003-10-14 2003-10-14 Variable inductor Withdrawn GB2407214A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
GB0324092A GB2407214A (en) 2003-10-14 2003-10-14 Variable inductor
EP04775086A EP1676284B1 (en) 2003-10-14 2004-10-13 Core for a controllable inductive device
JP2006535293A JP4630873B2 (en) 2003-10-14 2004-10-13 Controllable guidance device
ES04775086T ES2378160T3 (en) 2003-10-14 2004-10-13 Core for a controllable inductor device
KR1020067005315A KR101082576B1 (en) 2003-10-14 2004-10-13 Controllable inductive device
BRPI0415384-7A BRPI0415384A (en) 2003-10-14 2004-10-13 controllable inductive device
PT04775086T PT1676284E (en) 2003-10-14 2004-10-13 Core for a controllable inductive device
PCT/NO2004/000308 WO2005036568A1 (en) 2003-10-14 2004-10-13 Controllable inductive device
AT04775086T ATE535920T1 (en) 2003-10-14 2004-10-13 CORE FOR CONTROLLED INDUCTIVE DEVICE
CA2537700A CA2537700C (en) 2003-10-14 2004-10-13 Controllable inductive device
CN2004800299145A CN1868008B (en) 2003-10-14 2004-10-13 Variable inductor
EA200600771A EA008971B1 (en) 2003-10-14 2004-10-13 Controllable inductive device
NO20062085A NO331604B1 (en) 2003-10-14 2006-05-09 Controllable inductive device
HK06113706.2A HK1092937A1 (en) 2003-10-14 2006-12-13 Core for a controllable inductive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0324092A GB2407214A (en) 2003-10-14 2003-10-14 Variable inductor

Publications (2)

Publication Number Publication Date
GB0324092D0 true GB0324092D0 (en) 2003-11-19
GB2407214A GB2407214A (en) 2005-04-20

Family

ID=29559294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0324092A Withdrawn GB2407214A (en) 2003-10-14 2003-10-14 Variable inductor

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111819793A (en) * 2018-03-08 2020-10-23 三菱电机株式会社 Variable inductor circuit

Families Citing this family (6)

* 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
WO2010063140A1 (en) * 2008-12-05 2010-06-10 Abb Research Ltd. 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

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
JP2005510076A (en) * 2001-11-21 2005-04-14 マグテック エーエス 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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111819793A (en) * 2018-03-08 2020-10-23 三菱电机株式会社 Variable inductor circuit
CN111819793B (en) * 2018-03-08 2023-09-12 三菱电机株式会社 Variable inductor circuit

Also Published As

Publication number Publication date
EA008971B1 (en) 2007-10-26
JP2007508711A (en) 2007-04-05
WO2005036568A1 (en) 2005-04-21
CN1868008A (en) 2006-11-22
CA2537700C (en) 2013-11-26
EA200600771A1 (en) 2006-10-27
HK1092937A1 (en) 2007-02-16
CA2537700A1 (en) 2005-04-21
CN1868008B (en) 2011-08-17
ES2378160T3 (en) 2012-04-09
KR20070023623A (en) 2007-02-28
JP4630873B2 (en) 2011-02-09
PT1676284E (en) 2012-03-06
EP1676284A1 (en) 2006-07-05
KR101082576B1 (en) 2011-11-10
BRPI0415384A (en) 2006-12-12
ATE535920T1 (en) 2011-12-15
EP1676284B1 (en) 2011-11-30
GB2407214A (en) 2005-04-20

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