NO991991L - inductor - Google Patents

inductor

Info

Publication number
NO991991L
NO991991L NO991991A NO991991A NO991991L NO 991991 L NO991991 L NO 991991L NO 991991 A NO991991 A NO 991991A NO 991991 A NO991991 A NO 991991A NO 991991 L NO991991 L NO 991991L
Authority
NO
Norway
Prior art keywords
sleeve
inductor
rail
reduced
guide rail
Prior art date
Application number
NO991991A
Other languages
Norwegian (no)
Other versions
NO991991D0 (en
Inventor
Paul Anthony Brown
John Dickinson
Original Assignee
Norweb Plc
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 Norweb Plc filed Critical Norweb Plc
Publication of NO991991L publication Critical patent/NO991991L/en
Publication of NO991991D0 publication Critical patent/NO991991D0/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F2017/065—Core mounted around conductor to absorb noise, e.g. EMI filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Filters And Equalizers (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

Oppfinnelsen tilveiebringer en induktor som innbefatter en langstrakt ledeskinne (10) med rektangulært tverrsnitt, hvor i det minste en del av skinnen er omgitt av en hylse (20) som tilveiebringer i det vesentligste ingen elektrisk ledningsbane gjennom hylsen i en retning bort fra ledeskinnen. En slik hylse (20) konsentrerer de magnetiske flukslinjene i hylsen. Fordelen med en slik induktor er at ved høyere frekvenser (for eksempel over 100Hz) blir virkningene av skinneffekten redusert mens belastningen på induktoren ved lavere frekvenser men høyere strømmer også reduseres.The invention provides an inductor which includes an elongate guide rail (10) having a rectangular cross-section, wherein at least a portion of the rail is surrounded by a sleeve (20) which provides substantially no electrical lead path through the sleeve in a direction away from the guide rail. Such a sleeve (20) concentrates the magnetic flux lines in the sleeve. The advantage of such an inductor is that at higher frequencies (for example above 100Hz) the effects of the rail power are reduced while the load on the inductor at lower frequencies but higher currents is also reduced.

NO991991A 1996-10-28 1999-04-27 inductor NO991991D0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9622344.1A GB9622344D0 (en) 1996-10-28 1996-10-28 Inductor
PCT/GB1997/002937 WO1998019318A1 (en) 1996-10-28 1997-10-24 Inductor

Publications (2)

Publication Number Publication Date
NO991991L true NO991991L (en) 1999-04-27
NO991991D0 NO991991D0 (en) 1999-04-27

Family

ID=10802015

Family Applications (1)

Application Number Title Priority Date Filing Date
NO991991A NO991991D0 (en) 1996-10-28 1999-04-27 inductor

Country Status (12)

Country Link
EP (1) EP0934594A1 (en)
JP (1) JP2001503201A (en)
AR (1) AR009392A1 (en)
AU (1) AU4717797A (en)
BR (1) BR9712448A (en)
CA (1) CA2268716A1 (en)
CZ (1) CZ149699A3 (en)
GB (2) GB9622344D0 (en)
NO (1) NO991991D0 (en)
PL (1) PL333065A1 (en)
WO (1) WO1998019318A1 (en)
ZA (1) ZA979603B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9817840D0 (en) * 1998-08-14 1998-10-14 Nor Web Dpl Limited Signal connection device for a power line telecommunication system
EP0984514A3 (en) * 1998-09-03 2001-02-07 Nor.Web DPL Limited Signal connection device for a power line telecommunication system
DE20017549U1 (en) * 2000-05-31 2001-01-04 Siemens Ag Transformer or choke
US7023313B2 (en) 2003-07-16 2006-04-04 Marvell World Trade Ltd. Power inductor with reduced DC current saturation
US7489219B2 (en) 2003-07-16 2009-02-10 Marvell World Trade Ltd. Power inductor with reduced DC current saturation
US7307502B2 (en) 2003-07-16 2007-12-11 Marvell World Trade Ltd. Power inductor with reduced DC current saturation
US7872454B2 (en) 2003-08-21 2011-01-18 Marvell World Trade Ltd. Digital low dropout regulator
US7760525B2 (en) 2003-08-21 2010-07-20 Marvell World Trade Ltd. Voltage regulator
US8324872B2 (en) 2004-03-26 2012-12-04 Marvell World Trade, Ltd. Voltage regulator with coupled inductors having high coefficient of coupling
US7190152B2 (en) 2004-07-13 2007-03-13 Marvell World Trade Ltd. Closed-loop digital control system for a DC/DC converter
DE102014202128A1 (en) 2014-02-06 2015-08-06 Siemens Aktiengesellschaft inductor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL291330A (en) * 1962-04-19
US3882427A (en) * 1972-12-20 1975-05-06 Allis Chalmers Transient damping means for an electrical installation
US4571561A (en) * 1983-07-28 1986-02-18 Murata Manufacturing Co., Ltd. Noise reduction filter
GB8520997D0 (en) * 1985-08-22 1985-09-25 Emc Datacare Ltd Radio frequency choke
JPH0638473Y2 (en) * 1988-09-28 1994-10-05 北川工業株式会社 Noise current absorber
JPH03161907A (en) * 1989-11-21 1991-07-11 Matsushita Electric Ind Co Ltd Wire cable for high-frequency inductance
JP2798560B2 (en) * 1992-06-30 1998-09-17 古河電気工業株式会社 Conductive material and high-frequency transformer using the same
GB9407935D0 (en) * 1994-04-21 1994-06-15 Norweb Plc Hybrid electricity and telecommunications distribution network
JPH06260869A (en) * 1993-03-04 1994-09-16 Nippon Telegr & Teleph Corp <Ntt> Noise filter
DE4311126C2 (en) * 1993-04-05 1998-03-12 Siemens Matsushita Components Current-compensated multiple choke in a compact design
GB9417359D0 (en) * 1994-08-26 1994-10-19 Norweb Plc A power transmission network and filter therefor

Also Published As

Publication number Publication date
WO1998019318A1 (en) 1998-05-07
CZ149699A3 (en) 1999-10-13
ZA979603B (en) 1999-04-28
BR9712448A (en) 1999-10-19
GB2318691A (en) 1998-04-29
AR009392A1 (en) 2000-04-12
GB9622344D0 (en) 1997-01-08
AU4717797A (en) 1998-05-22
JP2001503201A (en) 2001-03-06
CA2268716A1 (en) 1998-05-07
PL333065A1 (en) 1999-11-08
GB9722429D0 (en) 1997-12-24
EP0934594A1 (en) 1999-08-11
NO991991D0 (en) 1999-04-27

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