EP0275499B1 - Bobine de réactance à courant compensé pour suppression d'interférence d'étincelle - Google Patents

Bobine de réactance à courant compensé pour suppression d'interférence d'étincelle Download PDF

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Publication number
EP0275499B1
EP0275499B1 EP87118700A EP87118700A EP0275499B1 EP 0275499 B1 EP0275499 B1 EP 0275499B1 EP 87118700 A EP87118700 A EP 87118700A EP 87118700 A EP87118700 A EP 87118700A EP 0275499 B1 EP0275499 B1 EP 0275499B1
Authority
EP
European Patent Office
Prior art keywords
current
core
compensated choke
cores
choke according
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
EP87118700A
Other languages
German (de)
English (en)
Other versions
EP0275499A1 (fr
Inventor
Josef Dipl.-Ing. Wimmer (Fh)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0275499A1 publication Critical patent/EP0275499A1/fr
Application granted granted Critical
Publication of EP0275499B1 publication Critical patent/EP0275499B1/fr
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
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F17/062—Toroidal core with turns of coil around it

Definitions

  • the invention relates to a current-compensated choke for radio interference suppression with a magnetic core wound with at least two electrical windings, which has a high symmetrical inductance component for damping asymmetrical and symmetrical interference currents.
  • radio interference suppression technology In radio interference suppression technology, a distinction is made between symmetrical and asymmetrical interferers. One speaks of mixed interference when both symmetrical and asymmetrical disturbances occur. The aim of any interference suppression technology is to reduce the line-borne transmission of interference from a source of interference and to reduce the ability to influence an interference sink.
  • Asymmetrical disturbances can occur in all electrical devices in which, in addition to the mains conductors through which the operating current flows, an earth line is connected to protect users and the devices.
  • Parasitic capacitances in the interference sink or interference source also cause interference current in the earth circuit. This current flows on all network conductors in the common mode between interference sink and source of interference, while it flows back over the network line in push-pull.
  • the asymmetrical disturbance is therefore also called common mode disturbance.
  • Suppression circuits are used in mains conductors to dampen the interference currents. These are mostly low passes, allow the operating currents to pass through unhindered, but have high impedance for high-frequency interference currents. Low-pass filters for high operating currents are usually made up of chokes and capacitors.
  • the chokes used here can be divided into rod core chokes and current-compensated chokes.
  • Rod core chokes dampen common and push-pull interference currents equally well. Their large magnetic shear prevents the magnetic core from being saturated by the operating current. However, it is disadvantageous that rod core chokes become very bulky for larger operating currents. With interference suppression filter circuits with only rod cores, a separate rod core choke must be provided for each live mains conductor. In three-phase radio interference suppression filters with neutral conductor, for example, four such large-volume rod core chokes would have to be accommodated.
  • the current-compensated chokes in which the magnetic fluxes in the core are compensated for by a special arrangement of the windings.
  • the choke core can thereby be greatly reduced and the number of turns reduced.
  • the magnetic fluxes of the push-pull interference currents compensate in the same way as that of the operating currents, there is no effective damping in the case of symmetrical interference.
  • the object of the invention is to provide a current-compensated choke for radio interference suppression which, with a small space requirement, has a high symmetrical proportion of inductance even at high operating currents.
  • the stray inductance required for a high symmetrical inductance component is therefore not formed, as was previously the case, by strengthening the stray field, which is closed via the air and part of the core. Rather, a high symmetrical inductance component is built up in the individual windings of this current-compensated choke by concentrating the magnetic field of the individual turns, which is not closed in the core, in one or more separate outer cores.
  • the additional symmetrical inductance component that can be achieved with this in this way is not at the expense of an increase in the throttle resistance. Especially with high operating currents, the losses of an interference suppression circuit can be significantly reduced.
  • a particularly good saturation behavior of the symmetrical inductance component can be achieved if each individual turn is led through a separate outer core. At the same time, the saturation magnetization of the core can be improved without a significant increase in volume.
  • FIG shows a partially wound, current-compensated quadruple toroidal choke in a perspective view.
  • a plurality of ferrite toroidal cores 6 are assembled to form a cylindrical core 1, the cavity for receiving four identical windings is divided into four identical segments by an insulating cross 4. For a better overview, only one of the four windings is shown.
  • This consists of an insulated copper press rope 5, which is wound in four individual turns 3 around the core 1 and is guided in the outer region of the core 1 through four outer cores 2 made of carbonyl iron.

Landscapes

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

Claims (10)

  1. Bobine d'arrêt compensée en courant pour réaliser l'antiparasitage, comportant un noyau magnétique (1), sur lequel sont enroulés au moins deux enroulements électriques et qui possède une partie d'inductance à symétrie élevée pour amortir des courants parasites dissymétriques et symétriques, caractérisée par le fait que les structures, situées vers l'extérieur du noyau, des spires individuelles (3) des enroulements électriques s'étendent dans des noyaux extérieurs (2) possédant une aimantation de saturation élevée.
  2. Bobine d'arrêt compensée en courant suivant la revendication 1, caractérisée par le fait qu'au moins des spires individuelles (3) d'un enroulement s'étendent dans la zone extérieure du noyau (1), dans au moins un noyau extérieur (2).
  3. Bobine d'arrêt compensée en courant suivant la revendication 2, caractérisée par le fait que chaque spire individuelle (3) s'étend dans un noyau extérieur séparé (2).
  4. Bobine d'arrêt compensée en courant suivant l'une des revendications précédentes, caractérisé par le fait que le noyau (1) est formé par un noyau annulaire fermé, un noyau en forme de E ou un noyau en forme de U.
  5. Bobine d'arrêt compensée en courant suivant l'une des revendications précédentes, caractérisée par le fait que le noyau (1) est formé par un corps tubulaire constitué par la réunion de noyaux annulaires individuels de ferrite (6).
  6. Bobine d'arrêt compensée en courant suivant l'une des revendications précédentes, caractérisée par le fait que les noyaux extérieurs (2) sont constitués par des noyaux tubulaires ou par des noyaux en forme de U.
  7. Bobine d'arrêt compensée en courant suivant la revendication 6, caractérisée par le fait que les noyaux tubulaires sont formés par du fer carbonyle ou une poudre de fer.
  8. Bobine d'arrêt compensée en courant suivant la revendication 6, caractérisée par le fait que les noyaux en forme de U sont constitués par un matériau de ferrite à perméabilité accrue.
  9. Bobine d'arrêt compensée en courant suivant l'une des revendications précédentes, caractérisée par le fait que les spires individuelles (3) sont réalisées par un toron pressé en cuivre, isolé électriquement.
  10. Bobine d'arrêt compensée en courant suivant l'une des revendications précédentes, caractérisée par le fait que les spires individuelles (3) sont constituées par des éléments formés de barres de cuivre.
EP87118700A 1986-12-23 1987-12-16 Bobine de réactance à courant compensé pour suppression d'interférence d'étincelle Expired - Lifetime EP0275499B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3644333 1986-12-23
DE3644333 1986-12-23

Publications (2)

Publication Number Publication Date
EP0275499A1 EP0275499A1 (fr) 1988-07-27
EP0275499B1 true EP0275499B1 (fr) 1992-06-03

Family

ID=6317122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118700A Expired - Lifetime EP0275499B1 (fr) 1986-12-23 1987-12-16 Bobine de réactance à courant compensé pour suppression d'interférence d'étincelle

Country Status (2)

Country Link
EP (1) EP0275499B1 (fr)
DE (1) DE3779608D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3840523A1 (de) * 1988-12-01 1990-06-07 Vogt Electronic Ag Mehrpolige entstoerdrossel fuer datenleitungen
DE4311126C2 (de) * 1993-04-05 1998-03-12 Siemens Matsushita Components Stromkompensierte Mehrfachdrossel in Kompaktbauweise
DE102010041618A1 (de) 2010-09-29 2011-12-22 Osram Gesellschaft mit beschränkter Haftung Schaltungsanordnung zum Betreiben mindestens zweier Halbleiterlichtquellen
DE102010041632A1 (de) 2010-09-29 2012-03-29 Osram Gesellschaft mit beschränkter Haftung Schaltungsanordnung zum Betreiben mindestens zweier Halbleiterlichtquellen
DE102010041613A1 (de) 2010-09-29 2012-03-29 Osram Ag Schaltungsanordnung zum Betreiben mindestens zweier Halbleiterlichtquellen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1123803A (fr) * 1955-03-18 1956-09-28 Mode perfectionné de réalisation des circuits électriques comportant de l'inductance
DE1955712A1 (de) * 1969-11-05 1971-05-13 Siemens Ag Traegerfrequenzsperrung durch Ferritkoerper an elektrischen Leitungen

Also Published As

Publication number Publication date
EP0275499A1 (fr) 1988-07-27
DE3779608D1 (de) 1992-07-09

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