EP0940827B1 - Selbstinduktives Bauelement - Google Patents

Selbstinduktives Bauelement Download PDF

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Publication number
EP0940827B1
EP0940827B1 EP99200505A EP99200505A EP0940827B1 EP 0940827 B1 EP0940827 B1 EP 0940827B1 EP 99200505 A EP99200505 A EP 99200505A EP 99200505 A EP99200505 A EP 99200505A EP 0940827 B1 EP0940827 B1 EP 0940827B1
Authority
EP
European Patent Office
Prior art keywords
self
inductance component
wound
winding
component
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 - Lifetime
Application number
EP99200505A
Other languages
English (en)
French (fr)
Other versions
EP0940827A1 (de
Inventor
Pierre Chanteau
Hubert Paquet
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
Koninklijke Philips Electronics 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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of EP0940827A1 publication Critical patent/EP0940827A1/de
Application granted granted Critical
Publication of EP0940827B1 publication Critical patent/EP0940827B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to a self-inductance component comprising a winding wound on a rectilinear magnetic core.
  • Such a component is used in television distribution systems by cable.
  • a coil has a winding simple, wound on a magnetic core made up of a plurality of cylinders of ferrite placed in the extension of one another.
  • FR-A-2 290 779 presents a self-inductance component comprising a coil winding on a core. The winding is partly wound in one direction and partly in the other.
  • a cable television distribution system includes antennas, amplifiers, cables and distribution boxes; a self-inductance component placed in these distributors allows to pass fairly intense supply currents, direct or alternating currents to 50 Hz, so as to supply the amplifiers via cables, from of power supplies located in a building.
  • the frequency range transiting in these systems being very extensive, it is difficult to obtain that it component has both a high impedance at the highest frequencies low (5 MHz) and an absence of resonances at the highest frequencies.
  • a parasitic modulation phenomenon at 50 Hz may appear, due to periodic saturation of the magnetic core.
  • An object of the invention is to obtain correct operation in a frequency range as wide as 5 MHz to 3000 MHz, the component being traversed by an alternating current at 50 Hz of at least 5 amperes.
  • the said magnetic core consists of several rods of ferrite placed side by side as in a bundle.
  • FIG. 1 represents a component according to the invention, seen in perspective.
  • Figure 2 shows an example of the use of such a component.
  • the component has a winding wound on a magnetic core straight consisting of several ferrite rods 1, 2, 3 placed side by side as in a bundle. Here they are three in number, and they are arranged with their axes equidistant from each other, forming an equilateral triangle.
  • the winding is partly wound in one direction and partly in the other. he is made of part 4 between entry 6 and a midpoint 7, and part 5 between midpoint 7 and exit 8, these two parts being for example of equal lengths, possibly to the nearest revolution.
  • part 4 the thread is wound in the direction indicated by arrow 9, and in part 5 the wire is wound in the opposite direction, indicated by arrow 10.
  • the two parts are for example connected by solder in 7. At this point, the wire could also be bent to start again in the opposite direction.
  • the distributor of Figure 2 is part for example of a network of television distribution not shown, it divides a signal on an input E, to send it to four outputs S1, S2, S3, 54. Upstream of input E is finds any electronic circuit 12 which requires power. In downstream of outputs S1, S2, S3, S4 are electronic circuits any 24, 25, 26, 27 which each require power.
  • the module SP is a module known in itself which realizes the high signal distribution frequency. The supply current is supplied by an AL supply on the connection 30, and reaches circuits 12, 24, 25, 26, 27 via components respectively 22, 34, 35, 36, 37, each of the model described above and represented by figure 1.

Landscapes

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

Claims (6)

  1. Selbstinduktives Bauelement mit einer Spulenwicklung auf einem geradlinigen Magnetkern, dadurch gekennzeichnet, dass der besagte Magnetkern aus mehreren Ferritstäben gebildet wird, die wie in einem Bündel nebeneinander angeordnet sind und die Spulenwicklung teils in die eine und teils in die andere Richtung verläuft.
  2. Selbstinduktives Bauelement nach Anspruch 1, dadurch gekennzeichnet, dass die Ferritstäbe Stücker drei sind.
  3. Selbstinduktives Bauelement nach Anspruch 2, dadurch gekennzeichnet, dass die drei Ferritstäbe mit ihren Achsen zueinander äquidistant angeordnet sind.
  4. Selbstinduktives Bauelement nach Anspruch 1, dadurch gekennzeichnet, dass die Spulenteile in die eine und die andere Richtung bis auf eine Umwicklung dieselbe Länge haben.
  5. Selbstinduktives Bauelement nach Anspruch 1, dadurch gekennzeichnet, dass die Spulenteile in die eine und die andere Richtung dieselbe Länge haben.
  6. Selbstinduktives Bauelement nach Anspruch 1, dadurch gekennzeichnet, dass der Spulendraht direkt auf das Ferritstabbündel gewickelt wird.
EP99200505A 1998-03-03 1999-02-23 Selbstinduktives Bauelement Expired - Lifetime EP0940827B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9802545A FR2775824A1 (fr) 1998-03-03 1998-03-03 Composant a self inductance
FR9802545 1998-03-03

Publications (2)

Publication Number Publication Date
EP0940827A1 EP0940827A1 (de) 1999-09-08
EP0940827B1 true EP0940827B1 (de) 2003-11-19

Family

ID=9523571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99200505A Expired - Lifetime EP0940827B1 (de) 1998-03-03 1999-02-23 Selbstinduktives Bauelement

Country Status (6)

Country Link
US (1) US6118363A (de)
EP (1) EP0940827B1 (de)
JP (1) JPH11288814A (de)
DE (1) DE69912869D1 (de)
FR (1) FR2775824A1 (de)
SG (1) SG74123A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002313630A (ja) * 2001-04-10 2002-10-25 Uro Electronics Co Ltd チョークコイル
JP2010288244A (ja) * 2009-06-12 2010-12-24 Pixela Corp Ｌｎｂインターフェース回路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279239A (en) * 1937-10-18 1942-04-07 Bbc Brown Boveri & Cie High tension transformer
NL167816C (nl) * 1974-11-07 1982-01-18 Philips Nv Hoogfrequente signaaloverdrachtsinrichting.
JPS5885511A (ja) * 1981-11-16 1983-05-21 Nishi Nippon Control Kk リアクトルの製造法
TW252206B (de) * 1993-09-01 1995-07-21 Philips Electronics Nv
JPH09330810A (ja) * 1996-06-07 1997-12-22 Toyota Motor Corp 低損失コア部材
US5805042A (en) * 1997-03-31 1998-09-08 Scientific-Atlanta, Inc. Radio frequency low hum-modulation AC bypass coil

Also Published As

Publication number Publication date
SG74123A1 (en) 2000-07-18
FR2775824A1 (fr) 1999-09-03
JPH11288814A (ja) 1999-10-19
EP0940827A1 (de) 1999-09-08
DE69912869D1 (de) 2003-12-24
US6118363A (en) 2000-09-12

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