EP0351583A1 - Twin coil - Google Patents

Twin coil Download PDF

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Publication number
EP0351583A1
EP0351583A1 EP89111446A EP89111446A EP0351583A1 EP 0351583 A1 EP0351583 A1 EP 0351583A1 EP 89111446 A EP89111446 A EP 89111446A EP 89111446 A EP89111446 A EP 89111446A EP 0351583 A1 EP0351583 A1 EP 0351583A1
Authority
EP
European Patent Office
Prior art keywords
coil
coils
winding
twin
coupling
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.)
Granted
Application number
EP89111446A
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German (de)
French (fr)
Other versions
EP0351583B1 (en
Inventor
Uwe Ing.-Grad. Hartmann
Udo Ing.Grad. Mai
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.)
Vogt Electronic AG
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Vogt Electronic AG
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Publication date
Application filed by Vogt Electronic AG filed Critical Vogt Electronic AG
Priority to AT89111446T priority Critical patent/ATE88833T1/en
Publication of EP0351583A1 publication Critical patent/EP0351583A1/en
Application granted granted Critical
Publication of EP0351583B1 publication Critical patent/EP0351583B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/02—Fixed inductances of the signal type  without magnetic core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/42—Flyback transformers
    • 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
    • H01F17/045—Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • H01F2017/0053—Printed inductances with means to reduce eddy currents

Definitions

  • the aim is to combine inductors in such a way that two coils are wound on a coil former.
  • the invention relates to such a coil arrangement (duo coil) having two coils on a common coil former.
  • Combination coils of the aforementioned type are already known from European Patent 0 171 690. These known coils have a number of disadvantages. With them, the windings are almost 100% coupled, making adjustment difficult. Furthermore, the inevitable manufacturing tolerances require a high level of measurement and result in a high reject rate, since it is practically impossible to make improvements. In addition, the windings are heated by eddy current losses caused by the other field. Finally, the required damping of the driver circuit must be realized by means of the external load resistor.
  • the invention has for its object a coil To create arrangement of the type mentioned, which avoids the aforementioned disadvantages of the known coils of this type with otherwise the same effect in the circuit.
  • the individual coils each with its own core, if necessary. arranged at a considerable mutual distance on the common bobbin, whereby the coupling is minimized. If necessary, the remaining coupling is reduced to a negligible value by an uncritical opposing winding.
  • Fig. 1 and Fig. 2 show the duo coil schematically in side view and partly in section.
  • Fig. 3 shows the circuit diagram of the windings of the two coils of the duo coil.
  • the duo coil has a bobbin 1 with a foot and connecting pins.
  • the coil former 1 is provided with four flanges 2, which form two winding chambers 3 and 4. 2 shows the relative position of two cores 9 and 10 in the coil former 1 and the distribution of the windings from FIG. 3 in the winding chambers 3 and 4.
  • the actual vertical winding W3a from FIG. 3 is designated by 5, which continues in the compensation winding 8 designated by W3B in FIG. 3, which consists of a few turns and extends in opposite directions over the entire winding width in the winding chamber 3, which also includes one in FIG 3 accommodates secondary driver winding 6, designated W1, and a primary driver winding 7, designated W2 in FIG.
  • the arrangement of the compensation winding 8 in the winding chamber 3 creates the effect that the end of this winding comes to rest on the foot of the coil former.
  • Coil arrangements according to the invention can e.g. can be used as driver and vertical deflection integration coils or as coupling and bridge coils for the east-west diode modulator in image viewing devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

A coil arrangement comprising two coils on a single coil former, termed a twin coil, is characterized in that the two coils (W1, W2 and, respectively, W3A), with any respective individual magnetic core (10 or, respectively, 9) required, are mounted with a substantial distance from each other on the coil former (1) and in that the respective residual coupling of the coils (W1, W2 and W3A) is eliminated by an oppositely wound or connected compensation winding (W3B). The compensating winding (8) is located in the one winding compartment (3) and has current from the coil in the other winding chamber (4) flowing through it. As a result the twin coil in accordance with the invention leads to some advantages over known twin coils in which the coupling between the two coils is nearly 100%.

Description

In Bildsichtgeräten, insbesondere Fernsehgeräten, wird aus wirtschaftlichen Gründen angestrebt, Induktivitäten derart zusammenzufassen, daß zwei Spulen auf einen Spulen­körper gewickelt werden. Die Erfindung bezieht sich auf eine solche, zwei Spulen auf einem gemeinsamen Spulenkörper aufweisende Spulnanordnung (Duo-Spule).In image viewing devices, in particular television sets, for economic reasons the aim is to combine inductors in such a way that two coils are wound on a coil former. The invention relates to such a coil arrangement (duo coil) having two coils on a common coil former.

Kombinationsspulen der vorgenannten Art sind bereits aus der Europäischen Patentschrift 0 171 690 bekannt. Diese bekannten Spulen haben eine Reihe von Nachteilen. Bei ihnen sind die Wicklungen fast 100%-ig verkoppelt, wodurch ein Abgleich schwierig wird. Ferner bedingen die unvermeid­lichen Fertigungstoleranzen bei ihnen einen hohen Meßauf­wand und ergeben eine hohe Ausschußquote, da eine Nachbes­serung praktisch unmöglich ist. Außerdem werden die Wick­lungen durch vom jeweils anderen Feld hervorgerufene Wir­belstromverluste erwärmt. Schließlich muß eine erforder­liche Dämpfung der Treiberschaltung mittels des externen Lastwiderstandes realisiert werden.Combination coils of the aforementioned type are already known from European Patent 0 171 690. These known coils have a number of disadvantages. With them, the windings are almost 100% coupled, making adjustment difficult. Furthermore, the inevitable manufacturing tolerances require a high level of measurement and result in a high reject rate, since it is practically impossible to make improvements. In addition, the windings are heated by eddy current losses caused by the other field. Finally, the required damping of the driver circuit must be realized by means of the external load resistor.

Der Erfindung liegt die Aufgabe zugrunde, eine Spulen­ anordnung der eingangs genannten Art zu schaffen, die bei sonst gleichem Effekt in der Schaltung die vorgenannten Nachteile der bekannten Spulen dieser Gattung vermeidet.The invention has for its object a coil To create arrangement of the type mentioned, which avoids the aforementioned disadvantages of the known coils of this type with otherwise the same effect in the circuit.

Die vorstehende Aufgabe wird durch die im Kennzeichnungs­teil des Patentanspruchs 1 genannten Merkmale gelöst.The above object is achieved by the features mentioned in the characterizing part of patent claim 1.

Bei der erfindungsgemäßen Duo-Spule sind die einzelnen Spulen, ggf. jeweils mit einem eigenen Kern. in einem be­trächtlichen gegenseitigen Abstand auf dem gemeinsamen Spulenkörper angeordnet, wodurch die Verkopplung mini­miert wird. Die noch vorhandene Restverkopplung wird im Bedarfsfalle durch eine unkritische gegenläufige Wicklung bis auf einen vernachlässigbaren Wert herabgemindert.In the duo coil according to the invention, the individual coils, each with its own core, if necessary. arranged at a considerable mutual distance on the common bobbin, whereby the coupling is minimized. If necessary, the remaining coupling is reduced to a negligible value by an uncritical opposing winding.

Die erfindungsgemäße Duo-Spule weist gegenüber den oben geschilderten bekannten Spulenanordnungen insbesondere folgende Vorteile auf:

  • 1) Der Abgleich kann entfallen, da nur die geringe Rest­verkopplung bedingt durch den mechanischen Aufbau kom­pensiert zu werden braucht und dies durch einige gegen­läufige bzw. gegensinnig geschaltete Windungen auf den Wicklungen der anderen Spule geschieht,
  • 2) Der Kupferbedarf ist geringer,
  • 3) Die Wickelzeit wird herabgesetzt,
  • 4) Die Wirbelstromverluste sind geringer, da die Wick­lungen nicht mehr vom jeweilig anderen Feld geschnitten werden; dadurch wird ein kleinerer Kupferquerschnitt möglich,
  • 5) Bei einer Schaltung mit Treibertransformator kann dieser zur Dämpfung der Schaltung herangezogen werden, wodurch der oben erwähnte Last-Widerstand entfallen kann. Es er­gibt sich somit eine wirtschaftliche Einsparung. Die erfindungsgemäße Lösung kann jedoch allgemein über­all dort angewendet werden, wo es möglich ist, aus wirtschaftlichen Gründen zwei Spulen auf einen gemein­samen Spulenkörper zu wickeln.
The duo coil according to the invention has the following advantages in particular over the known coil arrangements described above:
  • 1) The adjustment can be omitted, since only the slight residual coupling needs to be compensated for by the mechanical structure and this is done by a number of turns running in opposite or opposite directions on the windings of the other coil.
  • 2) The copper requirement is lower,
  • 3) The winding time is reduced
  • 4) Eddy current losses are lower since the windings are no longer cut by the other field; this enables a smaller copper cross-section,
  • 5) In the case of a circuit with a driver transformer, this can be used for Damping of the circuit can be used, whereby the load resistance mentioned above can be omitted. This results in an economic saving. However, the solution according to the invention can generally be used wherever it is possible to wind two coils on a common bobbin for economic reasons.

Die erfindungsgemäße Duo-Spule wird nachstehend an einem Ausführungsbeispiel anhand der Zeichnung noch näher er­läutert. Fig. 1 und Fig. 2 geben die Duo-Spule schematisch in Seitenansicht sowie teilweise im Schnitt wieder. Fig. 3 zeigt das Schaltbild der Wicklungen der beiden Spulen der Duo-Spule.The duo coil according to the invention is explained in more detail below using an exemplary embodiment with reference to the drawing. Fig. 1 and Fig. 2 show the duo coil schematically in side view and partly in section. Fig. 3 shows the circuit diagram of the windings of the two coils of the duo coil.

Gemäß Fig. 1 weist die Duo-Spule einen Spulenkörper 1 mit Fuß und Anschlußstiften auf. Der Spulenkörper 1 ist mit vier Flanschen 2 versehen, die zwei Wicklungskammern 3 und 4 bilden. In Fig. 2 sind die relative Stellung zweier Kerne 9 und 10 im Spulenkörper 1 und die Verteilung der Wicklungen aus Fig. 3 in den Wicklungskammern 3 und 4 auf­gezeigt. Mit 5 ist die eigentliche Vertikalwicklung W3a aus Fig. 3 bezeichnet, die sich in der in Fig. 3 mit W3B bezeichneten Kompensationswicklung 8 fortsetzt, die aus einigen Windungen besteht und sich gegensinnig über die ganze Wickelbreite in der Wicklungskammer 3 erstreckt die auch eine in Fig. 3 mit W1 bezeichnete sekundäre Treiber­wicklung 6 und eine in Fig. 3 mit W2 bezeichnete primäre Treiberwicklung 7 aufnimmt. Durch die Anordnung der Kom­pensationswicklung 8 in der Wicklungskammer 3 entsteht noch der Effekt, daß das Ende dieser Wicklung an den Fuß des Spulenkörpers zu liegen kommt.1, the duo coil has a bobbin 1 with a foot and connecting pins. The coil former 1 is provided with four flanges 2, which form two winding chambers 3 and 4. 2 shows the relative position of two cores 9 and 10 in the coil former 1 and the distribution of the windings from FIG. 3 in the winding chambers 3 and 4. The actual vertical winding W3a from FIG. 3 is designated by 5, which continues in the compensation winding 8 designated by W3B in FIG. 3, which consists of a few turns and extends in opposite directions over the entire winding width in the winding chamber 3, which also includes one in FIG 3 accommodates secondary driver winding 6, designated W1, and a primary driver winding 7, designated W2 in FIG. The arrangement of the compensation winding 8 in the winding chamber 3 creates the effect that the end of this winding comes to rest on the foot of the coil former.

Erfindungsgemäße Spulenanordnungen können z.B. als Treiber- und Vertikalablekungs-Integrationsspulen oder als Einkoppel- und Brückenspulen für den Ost-West-­Diodenmodulator in Bildsichtgeräten verwendet werden.Coil arrangements according to the invention can e.g. can be used as driver and vertical deflection integration coils or as coupling and bridge coils for the east-west diode modulator in image viewing devices.

Claims (1)

Zwei Spulen auf einem gemeinsamen Spulenkörper aufweisende Spulenanordnung (Duo-Spule), dadurch gekennzeichnet, daß die beiden Spulen (W1,W2 bzw. W3A) gegebenenfalls mit je einem eigenen Magnetkern (10 bzw. 9) in einem beträchtlichen Ab­stand voneinander auf dem Spulenkörper (1) angeordnet sind und daß die jeweilige Restverkopplung der Spulen (W1,W2; W3A) durch eine gegensinnig gewickelte oder geschaltete Kom­pensationswicklung (W3B) beseitigt ist.Two coils on a common coil body having a coil arrangement (duo coil), characterized in that the two coils (W1, W2 or W3A), each with their own magnetic core (10 or 9) at a considerable distance from one another on the coil body ( 1) are arranged and that the respective residual coupling of the coils (W1, W2; W3A) is eliminated by a compensation winding (W3B) wound or switched in opposite directions.
EP89111446A 1988-07-20 1989-06-22 Twin coil Expired - Lifetime EP0351583B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89111446T ATE88833T1 (en) 1988-07-20 1989-06-22 DUO COIL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824642A DE3824642A1 (en) 1988-07-20 1988-07-20 DUO COIL E.g. AS A DRIVER AND VERTICAL DISTRACTION INTEGRATION COIL FOR THE EAST-WEST DIODE MODULATOR IN VIEWING EQUIPMENT
DE3824642 1988-07-20

Publications (2)

Publication Number Publication Date
EP0351583A1 true EP0351583A1 (en) 1990-01-24
EP0351583B1 EP0351583B1 (en) 1993-04-28

Family

ID=6359150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111446A Expired - Lifetime EP0351583B1 (en) 1988-07-20 1989-06-22 Twin coil

Country Status (7)

Country Link
US (1) US4973930A (en)
EP (1) EP0351583B1 (en)
JP (1) JPH0273610A (en)
KR (1) KR920001164B1 (en)
AT (1) ATE88833T1 (en)
DE (2) DE3824642A1 (en)
ES (1) ES2041373T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0503370A1 (en) * 1991-03-08 1992-09-16 VDO Adolf Schindling AG Resonant circuit coil for a magnetic field controlled oscillator
EP0729160A1 (en) * 1995-02-27 1996-08-28 Deutsche Thomson-Brandt Gmbh High voltage transformer for a television receiver

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256387B (en) * 1991-06-05 1994-04-27 Lai Ching Ming Extrusion of aluminium with hollow ribs
US5515262A (en) * 1992-10-21 1996-05-07 Hitran Corporation Variable inductance current limiting reactor
US5537026A (en) * 1995-04-26 1996-07-16 Emerson Electric Co. Method and apparatus for power controller operation using master and slave firing units
WO2018186815A1 (en) 2017-04-06 2018-10-11 İhsan Doğramaci Bi̇lkent Üni̇versi̇tesi̇ Minimization of current ripples in a gradient array system by applying an optimum-phase shift pulse width modulation pattern

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB452188A (en) * 1934-12-28 1936-08-18 Eduard Michaelis Improvements in and relating to high frequency tuning coils
US2815408A (en) * 1955-10-14 1957-12-03 Hafler David Transformers

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US1775880A (en) * 1927-10-05 1930-09-16 George Steinhorst Radio frequency transformer
US2555853A (en) * 1945-04-16 1951-06-05 Emmett M Irwin Magnetic testing apparatus and method
US3445928A (en) * 1966-03-25 1969-05-27 Bunker Ramo Magnetometer method of manufacture
US3376533A (en) * 1967-05-09 1968-04-02 Pickering & Co Inc Differential transformers
US3458844A (en) * 1968-05-06 1969-07-29 Standard Int Corp Coil bobbin
JPS5567118A (en) * 1978-11-14 1980-05-21 Sumida Denki Kk Composite coil
FR2468877A1 (en) * 1979-11-05 1981-05-08 Snecma LINEAR DISPLACEMENT SENSOR
EP0071690A1 (en) * 1981-08-10 1983-02-16 Firm MODEL RACING S.P.A. Videoelectronic game between two players simulating a football match between two teams
US4473811A (en) * 1982-02-25 1984-09-25 General Instrument Corporation Single bobbin transformer having multiple delink windings and method of making same
EP0171690B1 (en) * 1984-08-16 1987-11-11 TELEFUNKEN Fernseh und Rundfunk GmbH Coil-configuration with magnetizable pin core

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB452188A (en) * 1934-12-28 1936-08-18 Eduard Michaelis Improvements in and relating to high frequency tuning coils
US2815408A (en) * 1955-10-14 1957-12-03 Hafler David Transformers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Japan Electronic Engineering no. 38, Januar 1970, Seiten 37 - 40; Hiroshi Suzuki: "SPIRAL WINDING COIL FOR COLOR AND B/W TV" *
PATENT ABSTRACTS OF JAPAN vol. 4, no. 109 (E-20)(591) 06 August 1980, & JP-A-55 67118 (SUMIDA DENKI) 21 Mai 1980, *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0503370A1 (en) * 1991-03-08 1992-09-16 VDO Adolf Schindling AG Resonant circuit coil for a magnetic field controlled oscillator
EP0729160A1 (en) * 1995-02-27 1996-08-28 Deutsche Thomson-Brandt Gmbh High voltage transformer for a television receiver
US5751205A (en) * 1995-02-27 1998-05-12 Deutsche Thomson Brandt Gmbh High-voltage transformer for a television receiver

Also Published As

Publication number Publication date
JPH0273610A (en) 1990-03-13
ES2041373T3 (en) 1993-11-16
DE3824642A1 (en) 1990-02-01
ATE88833T1 (en) 1993-05-15
KR920001164B1 (en) 1992-02-06
DE58904180D1 (en) 1993-06-03
US4973930A (en) 1990-11-27
KR900002361A (en) 1990-02-28
EP0351583B1 (en) 1993-04-28
DE3824642C2 (en) 1991-07-18

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