EP0171690B1 - Configuration de bobines avec noyau à cheville magnétisable - Google Patents

Configuration de bobines avec noyau à cheville magnétisable Download PDF

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Publication number
EP0171690B1
EP0171690B1 EP85109434A EP85109434A EP0171690B1 EP 0171690 B1 EP0171690 B1 EP 0171690B1 EP 85109434 A EP85109434 A EP 85109434A EP 85109434 A EP85109434 A EP 85109434A EP 0171690 B1 EP0171690 B1 EP 0171690B1
Authority
EP
European Patent Office
Prior art keywords
winding
windings
arrangement according
coil
winding arrangement
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
EP85109434A
Other languages
German (de)
English (en)
Other versions
EP0171690A1 (fr
Inventor
Walter Dipl.-Ing. Goseberg
Alfred Pollak
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.)
Deutsche Thomson oHG
Original Assignee
Telefunken Fernseh und Rundfunk GmbH
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
Priority claimed from DE3429976A external-priority patent/DE3429976A1/de
Priority claimed from DE19853525649 external-priority patent/DE3525649A1/de
Application filed by Telefunken Fernseh und Rundfunk GmbH filed Critical Telefunken Fernseh und Rundfunk GmbH
Priority to AT85109434T priority Critical patent/ATE30805T1/de
Publication of EP0171690A1 publication Critical patent/EP0171690A1/fr
Application granted granted Critical
Publication of EP0171690B1 publication Critical patent/EP0171690B1/fr
Expired legal-status Critical Current

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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole

Definitions

  • the magnetic flux within the individual windings is thus determined by the air gap within the winding, while the air gap is kept as small as possible in the central web common to the two coils, so that the magnetic coupling of the two coils to one another reaches a minimum order of magnitude, which is separate Use of the two coils z. B. with different frequencies.
  • this area is optimally level thanks to special work processes.
  • the object of the invention is to provide a coil arrangement with several windings for different applications with only one iron core.
  • This knowledge is used in solving problems in a coil arrangement with a pin core in order to realize coils for different tasks and with different frequencies.
  • this winding is approximately free of field lines of the outer windings and can be used as a separate coil.
  • it is expedient to arrange the coil with the larger inductance in the center since when a pin core is used, this coil is fully immersed and there are no inductance losses as with the outer coils due to the mutually polarized windings.
  • Manufacturing tolerances can be compensated for during manufacture by moving the pin core, so that the outer windings have exactly the same inductances and, when an AC voltage is applied, the same magnetic fields directed against each other.
  • the reverse pole connection of the outer windings causes losses in inductance. Despite these losses in inductance, sufficient inductance, caused by stray fields, is achieved for the outer windings.
  • the winding 1 shows a coil arrangement with three windings 2, 3 and 4 with the winding connections 6, 7, 8 and 9.
  • the windings are arranged next to one another on a winding body 5.
  • a magnetizable pin core 1 which is adjustable in its position relative to the windings.
  • the outer windings 2 and 4 are arranged in such a way that the pin core approximately closes with the outer edges of the coil. They are connected in series so that they act magnetically in opposite directions. The direction of the magnetic fields is indicated by the field lines. Due to the distance of the outer windings 2, 4 from one another, despite their opposite polarity, the magnetic effect of the pin core is such that sufficient inductance can still be achieved.
  • the decoupling of the winding 3 is optimal if the pin core 1 is set so that the magnetic fields of the outer windings 2, 4 are of the same size. Since the pin core 1 is fully immersed in the middle winding 3, the field lines of this coil close in the manner shown, the direction of the field lines and the frequency applied being selectable. The middle winding 3 induces currents in the outer windings that are of the same size and cancel each other out by the opposite polarity.
  • Fig. 2 shows part of a horizontal deflection circuit in a television with an input 10, the deflection coils 11, 12, the linear adjuster 14, the tangent capacitor 15, the bridge coil 16, the parallel capacitor 17, the diodes 18, 19, the flyback capacitors 20, 21, the east-west drive coil 22 and the east-west circuit 23.
  • the middle winding 3 is used as an east-west control coil with approximately 6 mH and the series connection of the outer windings 2, 4 as a bridge coil with approximately 1.7 mH in a television set.
  • the outer windings 2, 4 can be wound in the same winding direction or in opposite directions to one another. If different wire diameters are to be used, it is more advantageous to arrange the east-west control coil in the outer chambers and the bridge coil in the middle chamber.
  • FIG. 4 shows a part of a vertical deflection circuit in a television set with a vertical integration coil 2, 4 and the drive part for a horizontal deflection circuit with a line driver transformer 3.
  • pulses for controlling the current in the horizontal deflection coils are supplied from a pulse generator. They are amplified in transistor 40, the collector of which is connected to a connection of primary coil 31 of row driver transformer 3. The other connection is connected to the supply voltage + U ⁇ .
  • the pulses arrive from the secondary coil 30 at the input of the line end transistor 43, from whose collector connection C the horizontal deflection coils (not shown) and the line transformer are driven.
  • Thyristor 36 is to be understood as a switch by means of which the horizontal flyback pulses applied to the series connection of the vertical deflection coils 40 with vertical integration coil 2, 4 in time with the horizontal frequency are switched from the winding 39 of the line transformer, which is also in series.
  • the course of the vertical deflection voltage is shaped by the vertical integration coil 2, 4 in such a way that lines are written on the screen with the same vertical spacing.
  • the coils 30, 31 and 2, 4 are arranged on a pin core, which is indicated by the connecting, dashed line for the common iron core.
  • FIG. 5 shows the arrangement of the windings for the row driver transformer 3 and for the vertical integration coil 2, 4 according to FIG. 4.
  • the iron core 1 in the form of a pin core is arranged approximately in the middle of the chambers.
  • the outer chambers receive the partial coils of the vertical integration coil 2, 4 wound in opposite directions. With this type of opposite winding, stray fields cancel each other out to such an extent that an expensive ferrite cup is not required for shielding purposes.
  • the row driver transformer is housed in the three middle chambers.
  • the secondary winding 30 is located as the lower winding close to the iron core.
  • the winding distribution is chosen so that the middle chamber has a larger number of secondary turns than the adjacent chambers, which enables an optimal field distribution, so that mutual interference between the row driver transformer and the vertical integration coil can be minimized.
  • the primary winding 31 is applied as the last winding to the secondary winding 30 underneath.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)

Claims (9)

1. Ensemble à bobines comportant un noyau en forme de barreau magnétisable (1) muni de plusieurs, mais au moins trois, enroulements (2, 3, 4) disposés côte à côte et d'une manière approximativement symétrique par rapport au noyau en forme de barreau (1), présentant les caractéristiques suivantes :
les enroulements extérieurs (2, 4) possèdent des nombres de spires approximativement identiques et sont branchés électriquement en série de sorte que leurs champs magnétiques dans le noyau en forme de barreau (1) agissent dans le même sens,
le noyau en forme de barreau (1) pénètre en partie ou en totalité dans les enroulements extérieurs (2, 4) de telle sorte que ces enroulements possèdent des inductances approximativement identiques,
le circuit série des enroulements extérieurs (2, 4) représente un dipôle possédant une inductance prédéterminée, qui est pratiquement découplée, du point de vue électromagnétique, d'un ou de plusieurs enroulements intercalés (3, 30, 31), dans lequel le même noyau en forme de barreau (1) pénètre complètement.
2. Ensemble à bobines suivant la revendication 1, caractérisé par le fait que les enroulements (2, 3, 4) possèdent le même sens de bobinage.
3. Ensemble à bobines suivant la revendication 1, caractérisé par le fait que les enroulements extérieurs (2,4) sont enroulés en des sens réciproquement opposés.
4. Ensemble à bobines suivant l'une des revendications 1 à 3, caractérisé par le fait que le noyau en forme de barreau (1) est déplaçable de sorte que les enroulements extérieurs (2, 4) peuvent être réglés de manière à présenter une même inductance élevée.
5. Ensemble à bobines suivant l'une des revendications 1 à 4, caractérisé par le fait que le noyau en forme de barreau (1) est réalisé en un matériau ferromagnétique, notamment de la ferrite.
6. Ensemble à bobines suivant l'une des revendications 1 à 5, caractérisé par le fait que l'ensemble des trois enroulements (2, 3, 4) sont bobinés avec un fil de même diamètre.
7. Ensemble à bobines suivant l'une des revendications 1 à 6, caractérisé par le fait que l'enroulement médian (3) possède l'inductance maximale.
8. Ensemble à bobines suivant l'une des revendications 1 à 7, caractérisé par le fait que l'enroulement médian (3) possède une bobine de commande est-ouest (22) et que les enroulements extérieurs (2, 4) branchés en série forment une bobine en pont (16) pour un appareil de télévision.
9. Ensemble à bobines suivant l'une des revendications 1 à 7, caractérisé par le fait que l'enroulement médian (3) est réalisé sous la forme d'un transformateur formant étage d'attaque de balayage de lignes comportant deux couches d'enroulement (30, 31) superposées et que les enroulements extérieurs (2, 4) branchés en série sont réalisés sous la forme d'une bobine d'intégration verticale pour un appareil de télévision.
EP85109434A 1984-08-16 1985-07-26 Configuration de bobines avec noyau à cheville magnétisable Expired EP0171690B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85109434T ATE30805T1 (de) 1984-08-16 1985-07-26 Spulenanordnung mit magnetisierbarem stiftkern.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3429976A DE3429976A1 (de) 1984-08-16 1984-08-16 Spule mit magnetisierbarem stiftkern
DE3429976 1984-08-16
DE3525649 1985-07-18
DE19853525649 DE3525649A1 (de) 1985-07-18 1985-07-18 Spule mit magnetisierbarem stiftkern

Publications (2)

Publication Number Publication Date
EP0171690A1 EP0171690A1 (fr) 1986-02-19
EP0171690B1 true EP0171690B1 (fr) 1987-11-11

Family

ID=25823866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85109434A Expired EP0171690B1 (fr) 1984-08-16 1985-07-26 Configuration de bobines avec noyau à cheville magnétisable

Country Status (9)

Country Link
US (2) US4680566A (fr)
EP (1) EP0171690B1 (fr)
KR (1) KR930005380B1 (fr)
DE (1) DE3560972D1 (fr)
ES (1) ES8700490A1 (fr)
FI (1) FI853129L (fr)
HK (1) HK26390A (fr)
PT (1) PT80951B (fr)
SG (1) SG13789G (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3560972D1 (en) * 1984-08-16 1987-12-17 Telefunken Fernseh & Rundfunk Coil-configuration with magnetizable pin core
DE3824642A1 (de) * 1988-07-20 1990-02-01 Vogt Electronic Ag Duo-spule z. b. als treiber- und vertikalablenkungsintegrationsspule fuer den ost-west-diodenmodulator in bildsichtgeraeten
JP2767278B2 (ja) * 1989-04-10 1998-06-18 株式会社日本コンラックス 硬貨選別装置
JP2974967B2 (ja) * 1996-04-27 1999-11-10 ティーディーケイ株式会社 コンバータトランス
DE10135599A1 (de) 2001-07-20 2003-02-13 Thomson Brandt Gmbh Schaltnetzteil mit Powerfaktorkorrektur, sowie Spule für eine diesbezügliche Korrekturschaltung
US7317371B1 (en) * 2007-02-21 2008-01-08 Pearl Process Systems, Llc Linear variable differential transformer with complimentary step-winding secondary coils

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196809A (en) * 1936-03-17 1940-04-09 Philip A Jerguson Telemetric system
US2182071A (en) * 1937-08-12 1939-12-05 Johnson Lab Inc Adjustable coupling system
US2507344A (en) * 1948-01-09 1950-05-09 Automatic Temperature Control Co Inc Differential transformer
US2564221A (en) * 1948-01-22 1951-08-14 Bailey Meter Co Electromagnetic motion responsive device
DE942333C (de) * 1951-05-22 1956-05-03 Philips Nv Veraenderbare Induktivitaet mit vormagnetisierten Kern
US3089081A (en) * 1958-01-14 1963-05-07 Schaevitz Engineering Differential transformer
US2985854A (en) * 1958-02-06 1961-05-23 Schaevitz Engineering Differential transformer
US3017589A (en) * 1958-05-13 1962-01-16 Int Resistance Co Differential transformer
US3054976A (en) * 1958-11-18 1962-09-18 Schaevitz Engineering Differential transformer
NL128160C (fr) * 1960-05-24
US3197722A (en) * 1961-06-07 1965-07-27 Int Resistance Co Pressure transducer
US3594671A (en) * 1969-05-22 1971-07-20 Transducer Systems Inc Transducer means
US3594672A (en) * 1969-07-10 1971-07-20 Transducer Systems Inc Transducer device
US4229786A (en) * 1977-09-26 1980-10-21 Murata Manufacturing Co., Inc. Fly-back transformer with a low ringing ratio
FR2468877A1 (fr) * 1979-11-05 1981-05-08 Snecma Capteur de deplacement lineaire
GB2079065B (en) * 1980-06-27 1983-09-07 Sharetree Ltd Linear differential transformer
DE3121114A1 (de) * 1981-05-27 1982-12-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Bauteil fuer die linearitaet der zeilenablenkung in einem fernsehempfaenger
US4437019A (en) * 1983-02-07 1984-03-13 Pickering & Company, Inc. Linear differential transformer with constant amplitude and variable phase output
DE3560972D1 (en) * 1984-08-16 1987-12-17 Telefunken Fernseh & Rundfunk Coil-configuration with magnetizable pin core

Also Published As

Publication number Publication date
SG13789G (en) 1990-07-06
US4680566A (en) 1987-07-14
PT80951B (pt) 1987-08-19
DE3560972D1 (en) 1987-12-17
KR860002117A (ko) 1986-03-26
FI853129L (fi) 1986-02-17
ES8700490A1 (es) 1986-10-16
US4806831A (en) 1989-02-21
KR930005380B1 (ko) 1993-06-19
ES546123A0 (es) 1986-10-16
FI853129A0 (fi) 1985-08-15
HK26390A (en) 1990-04-12
EP0171690A1 (fr) 1986-02-19
PT80951A (de) 1985-09-01

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