CA2537700C - Controllable inductive device - Google Patents

Controllable inductive device Download PDF

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Publication number
CA2537700C
CA2537700C CA2537700A CA2537700A CA2537700C CA 2537700 C CA2537700 C CA 2537700C CA 2537700 A CA2537700 A CA 2537700A CA 2537700 A CA2537700 A CA 2537700A CA 2537700 C CA2537700 C CA 2537700C
Authority
CA
Canada
Prior art keywords
magnetic
winding
elements
permeability
core
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.)
Expired - Fee Related
Application number
CA2537700A
Other languages
English (en)
French (fr)
Other versions
CA2537700A1 (en
Inventor
Espen Haugs
Frank Strand
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.)
NOV Process and Flow Technologies 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
Publication of CA2537700A1 publication Critical patent/CA2537700A1/en
Application granted granted Critical
Publication of CA2537700C publication Critical patent/CA2537700C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Electronic Switches (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Magnetically Actuated Valves (AREA)
CA2537700A 2003-10-14 2004-10-13 Controllable inductive device Expired - Fee Related CA2537700C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0324092A GB2407214A (en) 2003-10-14 2003-10-14 Variable inductor
GB0324092.6 2003-10-14
PCT/NO2004/000308 WO2005036568A1 (en) 2003-10-14 2004-10-13 Controllable inductive device

Publications (2)

Publication Number Publication Date
CA2537700A1 CA2537700A1 (en) 2005-04-21
CA2537700C true CA2537700C (en) 2013-11-26

Family

ID=29559294

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2537700A Expired - Fee Related CA2537700C (en) 2003-10-14 2004-10-13 Controllable inductive device

Country Status (13)

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

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
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 (zh) * 2013-04-27 2016-08-10 福州大学 一种电感量可控的交流电感器
DE102015119519B4 (de) * 2015-11-12 2021-11-11 Endress + Hauser Flowtec Ag Magnetisch-induktives Durchflussmessgerät zur Messung der Durchflussgeschwindigkeit oder des Volumendurchflusses von Medien in einer Rohrleitung
US9979273B2 (en) * 2016-05-19 2018-05-22 Abb Schweiz Ag Resonant converters with variable inductor
WO2019171539A1 (ja) * 2018-03-08 2019-09-12 三菱電機株式会社 可変インダクタ回路

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 (fr) * 1976-03-08 1977-10-07 Ungari Serge Transformateur statique a noyau central
US4210859A (en) * 1978-04-18 1980-07-01 Technion Research & Development Foundation Ltd. Inductive device having orthogonal windings
CA1118509A (fr) * 1978-10-20 1982-02-16 Gerald Roberge Variable inductance
FR2452167A1 (fr) * 1979-03-20 1980-10-17 Aerospatiale Procede pour la realisation d'une armature magnetique a structure divisee et armature ainsi obtenue
DE3067608D1 (en) * 1979-04-23 1984-05-30 Serge Ungari Coil or trellis utilisable in variable transformers, adjustable power or precision resistors, coding resistors, wound resistors, electric radiators and heat exchangers
JPS6386409A (ja) * 1986-09-30 1988-04-16 Toshiba Corp 巻鉄心の製造方法
JP2532514B2 (ja) * 1987-10-05 1996-09-11 株式会社神戸製鋼所 磁気異方体の製造方法
JPH0756848B2 (ja) * 1989-02-27 1995-06-14 株式会社電研精機研究所 ノイズカットトランスの磁性線材から成る鉄心製造法
JP2594776B2 (ja) * 1995-04-21 1997-03-26 ティーディーケイ株式会社 非晶質合金巻磁心の製造方法
KR100606515B1 (ko) * 1998-11-13 2006-07-31 바쿰슈멜체 게엠베하 운트 코. 카게 변류기에 사용하기에 적합한 자기 코어, 상기 자기 코어의 제조 방법 및 상기 자기 코어를 구비한 변류기
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 (no) 2000-05-24 2004-07-26 Magtech As Magnetisk pavirkbar strom- eller spenningsregulerende anordning
AU2002366185A1 (en) * 2001-11-21 2003-06-10 Magtech As Device with controllable impedance
KR200399022Y1 (ko) 2005-08-09 2005-10-18 김광석 상하 이동체의 중력 완화 장치를 이용한 디스플레이어의위치 제어 장치
JP4316553B2 (ja) * 2005-10-31 2009-08-19 三菱電機株式会社 可変インダクタンス装置

Also Published As

Publication number Publication date
WO2005036568A1 (en) 2005-04-21
CN1868008B (zh) 2011-08-17
CA2537700A1 (en) 2005-04-21
JP2007508711A (ja) 2007-04-05
PT1676284E (pt) 2012-03-06
ES2378160T3 (es) 2012-04-09
HK1092937A1 (en) 2007-02-16
KR101082576B1 (ko) 2011-11-10
EP1676284A1 (en) 2006-07-05
EA008971B1 (ru) 2007-10-26
JP4630873B2 (ja) 2011-02-09
GB0324092D0 (en) 2003-11-19
BRPI0415384A (pt) 2006-12-12
EA200600771A1 (ru) 2006-10-27
ATE535920T1 (de) 2011-12-15
CN1868008A (zh) 2006-11-22
EP1676284B1 (en) 2011-11-30
GB2407214A (en) 2005-04-20
KR20070023623A (ko) 2007-02-28

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Effective date: 20201013