EP0096808B1 - Streufeldarme Funk-Entstördrossel - Google Patents

Streufeldarme Funk-Entstördrossel Download PDF

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Publication number
EP0096808B1
EP0096808B1 EP83105463A EP83105463A EP0096808B1 EP 0096808 B1 EP0096808 B1 EP 0096808B1 EP 83105463 A EP83105463 A EP 83105463A EP 83105463 A EP83105463 A EP 83105463A EP 0096808 B1 EP0096808 B1 EP 0096808B1
Authority
EP
European Patent Office
Prior art keywords
windings
interference suppression
core
radio interference
choke
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
Application number
EP83105463A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0096808A1 (de
Inventor
Jürgen Kaiser
Hans Kinzler
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
Priority to AT83105463T priority Critical patent/ATE18824T1/de
Publication of EP0096808A1 publication Critical patent/EP0096808A1/de
Application granted granted Critical
Publication of EP0096808B1 publication Critical patent/EP0096808B1/de
Expired 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards

Definitions

  • the invention relates to a low-stray radio interference suppression choke, in particular a current-compensated ring core multiple choke, consisting of a plurality of windings applied to an electrically insulated ring core made of soft magnetic material, in particular ferrite, each of which is separated into partial windings connected in series, preferably with the same number of turns, which are wound onto sections of the toroidal core, which are preferably diametrical to one another.
  • a low-stray radio interference suppression choke in particular a current-compensated ring core multiple choke, consisting of a plurality of windings applied to an electrically insulated ring core made of soft magnetic material, in particular ferrite, each of which is separated into partial windings connected in series, preferably with the same number of turns, which are wound onto sections of the toroidal core, which are preferably diametrical to one another.
  • the present invention has for its object to provide a stray field radio interference suppression choke of the type mentioned, in particular a current-compensated toroidal multiple choke, which is characterized by internal series connection of the partial windings and electrical isolation, which avoids the manufacturing disadvantages mentioned.
  • the invention provides for a radio interference suppression choke of the type mentioned that each winding consists of a continuous, uninterrupted wire divided into the partial windings and that the windings are each separated by an insulating cap, which on the toroid, and if necessary, on the winding previously wound, viewed in the winding sequence.
  • CH-A-539 328 does contain an illustration of a choke of the type mentioned in the introduction, in which the windings, each consisting of two partial windings, are also made from a continuously wound wire. This is a representation of the winding scheme. This document does not contain any specific information on how to actually wind the partial windings uninterruptedly.
  • This type of winding eliminates the need for complex contacting of the partial winding ends or beginnings. After completion of a partial winding, the wire end only has to be guided to the diametrically opposite ring core section and finally the second partial winding has to be applied to the ring core.
  • the insulating cap does not only effect the otherwise complex insulation of the overlapping windings; with appropriate training, it also ensures that the partial windings are properly fixed.
  • FIGS. 1 to 3 shows the winding structure for a stray field-poor, current-compensated toroidal double choke.
  • a first partial winding 2 and diametrically thereto a second partial winding 4 is wound on an electrically insulated ferrite toroidal core 1, the end of the partial winding 2 being continuous, i. H. is transferred into the beginning of the partial winding 4 without interruption.
  • the beginning 3 and end 5 of the overall winding 2, 4 are brought out on the same side in the exemplary embodiment shown, which is not absolutely necessary.
  • the beginning and end of the winding can also be guided radially to the opposite side.
  • This insulating cap in its sections 14, 15 pushed onto the partial windings 2, 4, has an enlarged cross section and is equipped with an opening 9 which is open at the edge and serves, as shown in FIG. 3, to lead out the winding start 3.
  • the insulating cap 6 In its sections 7, 8 offset from sections 14, 15 by 90 degrees, the insulating cap 6 has a reduced cross section. This ensures the fixing of the partial windings 10, 12 wound on the insulating cap 6 together with the ring core 1 according to FIG. 3, whose winding start 11 or winding end 13 can also be pulled radially to the opposite side, in contrast to the illustration according to FIG. 3 .
  • the insulating cap 20 shown in FIG. 5 is pushed directly onto the ring core, ie without previously winding up partial windings.
  • the insulating cap 20 has parallel, congruent and diametrically spaced segments 25, 26 at a distance from the cup bottom, which are open radially outwards and in the cup bottom circumferential direction and thus pocket-shaped slots or insulating channels 23, 24 for the Form a bridge between the partial windings 2, 4 or for the return of the winding end 5.
  • segments 25, 26, sections 7, 8 according to FIG. 2 are provided with sections 21, 22 which have a tapered cross section and which likewise ensure that the partial windings 2, 4 are fixed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
EP83105463A 1982-06-02 1983-06-01 Streufeldarme Funk-Entstördrossel Expired EP0096808B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83105463T ATE18824T1 (de) 1982-06-02 1983-06-01 Streufeldarme funk-entstoerdrossel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823220737 DE3220737A1 (de) 1982-06-02 1982-06-02 Streufeldarme funk-entstoerdrossel
DE3220737 1982-06-02

Publications (2)

Publication Number Publication Date
EP0096808A1 EP0096808A1 (de) 1983-12-28
EP0096808B1 true EP0096808B1 (de) 1986-03-26

Family

ID=6165082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105463A Expired EP0096808B1 (de) 1982-06-02 1983-06-01 Streufeldarme Funk-Entstördrossel

Country Status (5)

Country Link
US (1) US4578664A (fi)
EP (1) EP0096808B1 (fi)
AT (1) ATE18824T1 (fi)
DE (2) DE3220737A1 (fi)
FI (1) FI78189C (fi)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8613314D0 (en) * 1986-06-02 1986-07-09 Era Patents Ltd Microwave apparatus
DE3811983A1 (de) * 1988-04-11 1989-10-19 Siemens Ag Anordnung zum betrieb einer symmetrischen hochfrequenz-antenne
DE3840523A1 (de) * 1988-12-01 1990-06-07 Vogt Electronic Ag Mehrpolige entstoerdrossel fuer datenleitungen
GB8928899D0 (en) * 1989-12-21 1990-02-28 Knowles Electronics Co Coil assemblies
FR2687831B1 (fr) * 1992-02-24 1994-04-08 Merlin Gerin Transformateur en forme de tore pour capteur differentiel fonctionnant en classe a.
JP3317045B2 (ja) * 1994-10-14 2002-08-19 株式会社村田製作所 コモンモードチョークコイル
GB2336473A (en) * 1998-04-15 1999-10-20 Motorola Gmbh An inductor
DE19848827A1 (de) * 1998-10-22 2000-05-04 Vacuumschmelze Gmbh Vorrichtung zur Dämpfung von Störspannungen
US6507260B1 (en) * 2000-04-27 2003-01-14 Echelon Corporation Electrical transformer for use with twisted pair
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
US7023313B2 (en) * 2003-07-16 2006-04-04 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
DE102006043371B4 (de) * 2006-09-15 2010-12-23 Tq-Systems Gmbh Elektrische Bauelemente mit verbesserter elektromagnetischer Verträglichkeit (EMV), insbesondere reduzierter elektromagnetischer Interferenzen (EMI)
US9872109B2 (en) 2014-12-17 2018-01-16 Knowles Electronics, Llc Shared coil receiver
TW201624507A (zh) * 2014-12-23 2016-07-01 台達電子工業股份有限公司 適用疊層繞法之磁性元件

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA642616A (en) * 1962-06-12 The English Electric Company Limited Electrical inductors
US1897604A (en) * 1930-09-23 1933-02-14 Western Electric Co Electromagnetic device
US2216863A (en) * 1934-08-31 1940-10-08 Hartford Nat Bank & Trust Co Molding
US3068381A (en) * 1956-05-17 1962-12-11 Cie Ind Des Telephones Manufacture of toroidal coils
US3032729A (en) * 1957-05-16 1962-05-01 Phillips Petroleum Co Temperature stable transformer
US3027526A (en) * 1957-12-23 1962-03-27 Burroughs Corp Magnetic core assembly
FR1350868A (fr) * 1962-12-21 1964-01-31 Materiel Electrique S W Le Tore isolé sur lequel sont bobinés au moins deux enroulements
GB1105294A (en) * 1965-07-02 1968-03-06 Lucas Industries Ltd Transformers
DE2050312A1 (de) * 1970-10-13 1972-04-20 Siemens Ag Mehrfachdrossel mit Dämpfung von symmetrischen Störströmen
DE2228651C2 (de) * 1972-06-13 1974-07-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Ringkernspule
DE2825152C2 (de) * 1978-06-08 1980-08-28 Standard Elektrik Lorenz Ag, 7000 Stuttgart Ringkernübertrager oder Ringkernspule mit Halterung

Also Published As

Publication number Publication date
FI831974L (fi) 1983-12-03
US4578664A (en) 1986-03-25
EP0096808A1 (de) 1983-12-28
ATE18824T1 (de) 1986-04-15
DE3362672D1 (en) 1986-04-30
FI831974A0 (fi) 1983-06-01
FI78189B (fi) 1989-02-28
DE3220737A1 (de) 1983-12-08
FI78189C (fi) 1989-06-12

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