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EP0082966A1 - Line transformer for television receivers - Google Patents

Line transformer for television receivers Download PDF

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Publication number
EP0082966A1
EP0082966A1 EP82111028A EP82111028A EP0082966A1 EP 0082966 A1 EP0082966 A1 EP 0082966A1 EP 82111028 A EP82111028 A EP 82111028A EP 82111028 A EP82111028 A EP 82111028A EP 0082966 A1 EP0082966 A1 EP 0082966A1
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EP
European Patent Office
Prior art keywords
winding
primary
tuning
voltage
line transformer
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
EP82111028A
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German (de)
French (fr)
Other versions
EP0082966B1 (en
Inventor
Karlheinz Fraunhofer
Pieter Bracke
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.)
Alcatel Lucent Deutschland AG
International Standard Electric Corp
Original Assignee
Alcatel SEL AG
Standard Elektrik Lorenz AG
International Standard Electric Corp
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
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Application filed by Alcatel SEL AG, Standard Elektrik Lorenz AG, International Standard Electric Corp filed Critical Alcatel SEL AG
Publication of EP0082966A1 publication Critical patent/EP0082966A1/en
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    • 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
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications

Definitions

  • the invention relates to a line transformer for television sets, consisting of at least one primary and at least one secondary winding, in which at least the winding of the primary winding is wound from a metallic foil with a plastic foil inserted between them as insulation, and which is coordinated in this way that the secondary alternating high voltage contains in particular odd-numbered harmonics> 5th order of the fundamental.
  • Line transformers are known (DE-PS 25 04 355), in which the high voltage generated is kept particularly constant in that the alternating high voltage of the line transformer is tuned to odd harmonics > 5th order.
  • both the primary and the secondary winding (high-voltage winding) are designed in chamber winding technology, ie the windings are wound on a coil former, the winding space of which is divided into several chambers.
  • the high-voltage winding in the conventional flyback transformer is divided into three partial windings of which in each case two partial windings on the seventh harmonic and a part Wick-L u ng are tuned to the fifth harmonic. This K.Fraunhofer 7-6
  • the primary winding has an uneven density distribution, which is realized in such a way that the primary winding is also divided into a plurality of chamber windings which have different numbers of turns.
  • This object is achieved in that the coordination is divided into a coarse and a fine tuning in such a way that the coarse tuning by changing the width, the axial position and / or the radial position of the metallic foil of the primary winding and the fine tuning an inhomogeneous winding density distribution of the high-voltage winding is brought about.
  • the tuning of the alternating high voltage to the desired resonance frequencies is already approximately achieved.
  • the fine tuning takes place by means of a different winding density of the high-voltage winding, which is wound, for example, from wire onto a bobbin provided with chambers.
  • the specified measures allow the alternating high voltage of a line transformer to be matched to odd-numbered harmonics> 5th order with less effort than with the known line transformer.
  • the proposed teaching can be applied both to those line transformers whose primary and secondary windings are implemented using film winding technology, and to those line transformers whose secondary windings are implemented using chamber winding technology.
  • FIG. 2 shows the actual construction of a line transformer according to FIG. 1.
  • This contains the so-called film winding 1 and the coil body 2, which has a plurality of chambers in which the part windings W 1 , W 2 and W 3 are arranged as wire windings. The ends of the partial windings are routed to soldering points at which the diodes are also soldered.
  • the film roll 1 lies in the coil body 2.
  • FIG. 3 The longitudinal section through such a finished line transformer is illustrated in FIG. 3, in which the foil winding 1 and the coil former 2 are arranged on a base 3 and in a housing 4.
  • the high-voltage winding consists of the partial windings W 1 , W 2 and W 3 , with which the diodes D 1 , D 2 and D 3 are connected in series in the manner shown in FIG. 1.
  • the high-voltage connection 5 is led out of the housing 4 at the upper end, while all the other connections are led to socket pins 6, only one of which is shown for simplicity.
  • the primary winding A is particularly highlighted in FIG. 3 as part of the film winding 1. It has the width L, which is less than the total width W available for the film roll 1.
  • the coarse tuning can be further improved by the axial and / or radial position of the primary winding A. Radial position of the primary winding A means that the primary winding A can assume any local position in the film winding between R2 and R1. Axial position of the primary winding A means that the primary winding A with the width L can assume any local position along the total width W.
  • the partial winding W 1 is tuned to the 5th harmonic and the partial windings W 2 and W 3 to the 9th harmonic of the alternating high-voltage fundamental wave.
  • the fine tuning that is also required can be achieved by deliberately introducing inhomogeneous winding density distribution in the high-voltage winding. This can be done, for example, in that different numbers of turns are present in the individual chambers of the coil former on which the partial windings of the high-voltage winding are wound.

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

Abstract

1. Horizontal output transformer for television receivers, consisting of at least one primary and at least one secondary winding with an inhomogeneous winding-density distribution, wherein the primary and secondary windings are tuned in such a way that the secondary AC high voltage contains in particular odd harmonics equal to or greater than the fifth order of the fundamental wave and wherein fine tuning is effected by an inhomogeneous winding-density distribution of the high voltage winding, characterized in that at least the winding (1) of the primary winding (A) consists of a metal foil with an interposed plastic foil serving as an insulation and that coarse tuning is effected by fixing of the width (L), the axial position (W) and/or the radial position (R1, R2) of the metal foil of the primary winding (A).

Description

Die Erfindung betrifft einen Zeilentransformator für Fernsehgeräte, bestehend aus wenigstens einer Primär-und wenigstens einer Sekundärwicklung, bei dem wenigstens der Wickel der Primärwicklung aus einer metallischen Folie mit einer zwischen diese als Isolation eingelegten Kunststoff-Folie gewickelt ist, und welcher in der Weise abgestimmt ist, daß die sekundäre Wechsel- Hochspannung insbesondere ungradzahlige Harmonische > 5. Ordnung der GrundweLLe enthält.The invention relates to a line transformer for television sets, consisting of at least one primary and at least one secondary winding, in which at least the winding of the primary winding is wound from a metallic foil with a plastic foil inserted between them as insulation, and which is coordinated in this way that the secondary alternating high voltage contains in particular odd-numbered harmonics> 5th order of the fundamental.

Es sind ZeiLentransformatoren bekannt (DE-PS 25 04 355), bei denen die erzeugte Hochspannung dadurch besonders konstant gehalten wird, daß die Wechsel-Hochspannung des Zeilentransformators auf ungradzahlige Harmonische > 5. Ordnung abgestimmt wird. Bei dem bekannten Zeilentransformator sind sowohl die Primär- aLs auch die SekundärwickLung (Hochspannungswicklung), in Kammerwickeltechnik ausgeführt, d.h. die Wicklungen sind auf einen SpuLenkörper gewickelt, dessen Wickelraum in mehrere Kammern unterteilt ist. Die Hochspannungswicklung bei dem bekannten ZeiLentransformator ist in drei TeiLwickLungen unterteilt, von denen jeweils zwei TeiLwicklungen auf die siebte Harmonische und eine Teilwick-Lung auf die fünfte Harmonische abgestimmt sind. Dies K.Fraunhofer 7-6Line transformers are known (DE-PS 25 04 355), in which the high voltage generated is kept particularly constant in that the alternating high voltage of the line transformer is tuned to odd harmonics > 5th order. In the known line transformer, both the primary and the secondary winding (high-voltage winding) are designed in chamber winding technology, ie the windings are wound on a coil former, the winding space of which is divided into several chambers. The high-voltage winding in the conventional flyback transformer is divided into three partial windings of which in each case two partial windings on the seventh harmonic and a part Wick-L u ng are tuned to the fifth harmonic. This K.Fraunhofer 7-6

erfolgt dadurch, daß die Primärwicklung eine ungleichmäßige DichteverteiLung aufweist, welches in der Weise verwirklicht ist, daß auch die Primärwicklung in eine Mehrzahl von Kammerwicklungen unterteilt ist, welche unterschiedliche Windungszahlen aufweisen.takes place in that the primary winding has an uneven density distribution, which is realized in such a way that the primary winding is also divided into a plurality of chamber windings which have different numbers of turns.

Der bekannte ZeiLentransformator besitzt jedoch folgende NachteiLe:

  • Da für die Primärwicklung nur ein begrenzter Wickelraum zur Verfügung steht, sind der Veränderung der Windungszahlen in den verschiedenen Kammern des Wickelkörpers für die Primärwicklung, durch welche die Abstimmung zum größten Teil erfolgen sollte, Grenzen gesetzt, so daß auch die SekundärwickLung, d.h. die Hochspannungswicklung, in erheblichem Umfang für die Abstimmung mit herangezogen werden muß.
However, the known line transformer has the following disadvantages:
  • Since there is only a limited winding space available for the primary winding, there are limits to the number of turns in the various chambers of the winding body for the primary winding, which should largely be coordinated, so that the secondary winding, ie the high-voltage winding, must be used to a considerable extent for the vote.

Die zu Lösende Aufgabe besteht nun darin, einen ZeiLentransformator gemäß Oberbegriff des Patentanspruchs 1 anzugeben, bei dem die Abstimmung der Wechsel-Hochspannung auf ungradzahlige Harmonische ≥ 5. Ordnung überwiegend durch Maßnahmen an der PrimärwickLung erfolgt.The problem to be solved is now to provide a line transformer according to the preamble of claim 1, in which the alternating high voltage is matched to odd harmonics ≥ 5th order mainly by means of measures on the primary winding.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß die Abstimmung in eine Grob- und eine Feinabstimmung in der Weise unterteilt ist, daß die Grobabstimmung durch eine Änderung der Breite, der axialen Lage und/oder der radialen Lage der metallischen Folie der Primärwicklung und die Feinabstimmung durch eine inhomogene Wicklungsdichteverteilung der Hochspannungswicklung bewirkt ist.This object is achieved in that the coordination is divided into a coarse and a fine tuning in such a way that the coarse tuning by changing the width, the axial position and / or the radial position of the metallic foil of the primary winding and the fine tuning an inhomogeneous winding density distribution of the high-voltage winding is brought about.

Durch die richtige Wahl der Breite der metallischen FoLie, K.Fraunhofer 7-6By choosing the right width of the metallic foil, K.Fraunhofer 7-6

aus der die PrimärwickLung hergestellt ist, sowie der axialen Lage und/oder der radialen Lage des Primärwikkels wird bereits annähernd die Abstimmung der Wechsel- Hochspannung auf die gewünschten Resonanzfrequenzen erreicht. Die Feinabstimmung erfolgt durch eine unterschiedliche Windungsdichte der Hochspannungswicklung, welche beispielsweise aus Draht auf einen mit Kammern versehenen Spulenkörper gewickelt ist.from which the primary winding is made, as well as the axial position and / or the radial position of the primary winding, the tuning of the alternating high voltage to the desired resonance frequencies is already approximately achieved. The fine tuning takes place by means of a different winding density of the high-voltage winding, which is wound, for example, from wire onto a bobbin provided with chambers.

Durch die angegebenen Maßnahmen kann die Abstimmung der Wechsel-Hochspannung eines ZeiLentransformators auf ungradzahlige Harmonische > 5. Ordnung mit geringerem Aufwand als bei dem bekannten Zeilentransformator durchgeführt werden. Die vorgeschlagene Lehre kann sowohl bei solchen ZeiLentransformatoren angewendet werden, bei deren Primär- und Sekundärwicklung in Folienwickeltechnik ausgeführt sind, als auch bei solchen Zeilentransformatoren, deren SekundärwickLungen in Kammerwickeltechnik ausgeführt sind.The specified measures allow the alternating high voltage of a line transformer to be matched to odd-numbered harmonics> 5th order with less effort than with the known line transformer. The proposed teaching can be applied both to those line transformers whose primary and secondary windings are implemented using film winding technology, and to those line transformers whose secondary windings are implemented using chamber winding technology.

Die Erfindung ist nachstehend in den Figuren 1 bis 3 anhand eines Ausführungsbeispiels erläutert. Es zeigen:

  • Fig. 1 die SchaLtungsanordnung eines Zeilentransformators,
  • Fig. 2 den Aufbau der Wicklungen bei einer Ausführungsform eines Zeilentransformators und
  • Fig. 3 den Längsschnitt durch einen Zeilentransformator gemäß Fig. 2.
The invention is explained below in FIGS. 1 to 3 using an exemplary embodiment. Show it:
  • 1 shows the circuit arrangement of a line transformer,
  • Fig. 2 shows the structure of the windings in one embodiment of a line transformer and
  • 3 shows the longitudinal section through a line transformer according to FIG. 2.

Fig. 1 zeigt die Schaltungsanordnung eines ZeiLentrans-K. Fraunhofer 7-61 shows the circuit arrangement of a line transfer K. Fraunhofer 7-6

formators, welcher eine PrimärwickLung A besitzt. Auf seiner Sekundärseite sind zwei Hilfswicklungen B und C angeordnet, welche HiLfsspannungen mit verhältnismäßig niedrigen Spannungswerten Liefern. Die Hochspannungswicklung des ZeiLentransformators ist in drei Teilwicklun- gen W1, W2 und W3 unterteilt. Die Tatsache, daß zwischen den einzelnen TeiLwickLungen W1, W2 und W3 des ZeiLentransformators Dioden D1, D2 geschaltet sind, macht deutlich, daß es sich bei dem gezeigten Ausführungsbeispiel des ZeiLentransformators um einen Diodensplit-ZeiLentransformator handelt.formators, which has a primary winding A. On its secondary side there are two auxiliary windings B and C, which supply auxiliary voltages with relatively low voltage values. The high voltage winding of the flyback transformer is divided into three Teilwicklun- g s W 1, W 2 and W divided. 3 The fact that diodes D 1 , D 2 are connected between the individual partial windings W 1 , W 2 and W 3 of the row transformer makes it clear that the illustrated embodiment of the row transformer is a diode split row transformer.

Fig. 2 zeigt den tatsächlichen Aufbau eines ZeiLentransformators gemäß Fig. 1. Dieser enthält den sogenannten Folienwickel 1 und den SpuLenkörper 2, der eine Mehrzahl von Kammern besitzt, in denen die TeiLwickLungen W1, W2 und W3 als DrahtwickLungen angeordnet sind. Die Enden der TeiLwickLungen sind an Lötstützpunkte geführt, an denen auch die Dioden angelötet sind. Beim fertigen ZeiLentransformator Liegt der Folienwickel 1 in dem SpuLenkörper 2.FIG. 2 shows the actual construction of a line transformer according to FIG. 1. This contains the so-called film winding 1 and the coil body 2, which has a plurality of chambers in which the part windings W 1 , W 2 and W 3 are arranged as wire windings. The ends of the partial windings are routed to soldering points at which the diodes are also soldered. In the finished line transformer, the film roll 1 lies in the coil body 2.

Den Längsschnitt durch einen solchen fertigen Zeilentransformator verdeutlicht Fig. 3, bei dem der FoLienwickel 1 und der Spulenkörper 2 auf einem SockeL 3 und in einem Gehäuse 4 angeordnet sind. Die Hochspannungswicklung besteht aus den TeiLwickLungen W1, W2 und W3, mit denen die Dioden D1, D2 und D3 in der aus Fig. 1 ersichtlichen Weise in Reihe geschaltet sind. Der Hochspannungsanschluß 5 ist am oberen Ende aus dem Gehäuse 4 herausgeführt, während alle übrigen AnschLüsse an Sokkelstifte 6 geführt sind, von denen der Einfachheit wegen nur einergezeigt ist.The longitudinal section through such a finished line transformer is illustrated in FIG. 3, in which the foil winding 1 and the coil former 2 are arranged on a base 3 and in a housing 4. The high-voltage winding consists of the partial windings W 1 , W 2 and W 3 , with which the diodes D 1 , D 2 and D 3 are connected in series in the manner shown in FIG. 1. The high-voltage connection 5 is led out of the housing 4 at the upper end, while all the other connections are led to socket pins 6, only one of which is shown for simplicity.

K. Fraunhofer 7-6K. Fraunhofer 7-6

Die Primärwicklung A ist in Fig. 3 als TeiL des FoLienwickels 1 besonders hervorgehoben. Sie besitzt die Breite L, welche geringer als die für den Folienwickel 1 insgesamt zur Verfügung stehende Breite W ist.The primary winding A is particularly highlighted in FIG. 3 as part of the film winding 1. It has the width L, which is less than the total width W available for the film roll 1.

Die Grobabstimmung der Wechsel-Hochspannung des ZeiLentransformators auf ungradzahlige Harmonische ≥ 5. Ord- nung erfolgt erfindungsgemäß dadurch, daß für die Primärwicklung A die richtige Breite L gewählt wird. Eine weitere Verbesserung der Grobabstimmung kann durch die axiale und/oder radiale Lage der Primärwicklung A erfolgen. RadiaLe Lage der Primärwicklung A bedeutet dabei, daß die PrimärwickLung A jede beliebige örtliche Lage im Folienwickel zwischen R2 und R1 einnehmen kann. AxiaLe Lage der PrimärwickLung A bedeutet, daß die PrimärwickLung A mit der Breite L jede beliebige örtliche Lage entlang der Gesamtbreite W einnehmen kann.The coarse tuning of the AC high voltage of the flyback transformer to odd harmonics ≥ 5. n ung properly carried out according to the invention in that the correct width L is elected for the primary winding A. The coarse tuning can be further improved by the axial and / or radial position of the primary winding A. Radial position of the primary winding A means that the primary winding A can assume any local position in the film winding between R2 and R1. Axial position of the primary winding A means that the primary winding A with the width L can assume any local position along the total width W.

Durch diese Grobabstimmung kann etwa bis zu 95% des Abstimmungsoptimums erreicht werden. Bei entsprechender Lage der PrimärwickLung A sind die TeiLwickLung W1 auf die 5. Harmonische und die TeiLwickLungen W2 und W3 auf die 9. Harmonische der Wechsel-Hochspannungsgrundwelle abgestimmt. Die darüber hinaus noch benötigte Feinabstimmung kann durch eine bewußt herbeigeführte inhomogene Wicklungsdichteverteilung in der Hochspannungswicklung erzielt werden. Dies kann beispielsweise dadurch erfolgen, daß in den einzelnen Kammern des Spulenkörpers, auf denen die TeiLwickLungen der Hochspannungswicklung gewickelt sind, unterschiedliche Windungszahlen vorhanden sind.This rough adjustment can achieve up to 95% of the optimum vote. With the corresponding position of the primary winding A, the partial winding W 1 is tuned to the 5th harmonic and the partial windings W 2 and W 3 to the 9th harmonic of the alternating high-voltage fundamental wave. The fine tuning that is also required can be achieved by deliberately introducing inhomogeneous winding density distribution in the high-voltage winding. This can be done, for example, in that different numbers of turns are present in the individual chambers of the coil former on which the partial windings of the high-voltage winding are wound.

Claims (2)

1. ZeiLentransformator für Fernsehgeräte, bestehend aus wenigstens einer Primär- und wenigstens einer Sekundärwicklung, bei dem wenigstens der Wickel der PrimärwickLung aus einer metallischen FoLie mit einer zwischen diese als IsoLation eingelegten Kunststoff-FoLie gewickelt ist und welcher in der Weise abgestimmt ist, daß die sekundäre WechseL-Hochspannung insbesondere ungradzahlige Harmonische > 5. Ordnung der GrundweLLe enthält, dadurch gekennzeichnet , daß die Abstimmung in eine Grob- und eine Feinabstimmung in der Weise unterteilt ist, daß die Grobabstimmung durch eine Änderung der Breite, der axialen Lage und/oder der radialen Lage der metallischen FoLie der Primärwicklung und die Feinabstimmung durch eine inhomogene Wicklungsdichteverteilung der Hochspannungswicklung bewirkt ist.1. Line transformer for television sets, consisting of at least one primary and at least one secondary winding, in which at least the winding of the primary winding is wound from a metallic foil with a plastic foil inserted between them as insulation and which is coordinated in such a way that the contains secondary alternating high voltage, in particular odd-numbered harmonics> 5th order of the fundamental, characterized in that the tuning is divided into a coarse and a fine tuning in such a way that the coarse tuning by changing the width, the axial position and / or the radial position of the metallic foil of the primary winding and the fine tuning is brought about by an inhomogeneous winding density distribution of the high-voltage winding. 2. ZeiLentransformator nach Anspruch 1, dadurch gekennzeichnet, daß die Hochspannungswicklung auf einem SpuLenkörper mit einer Mehrzahl von Kammern angeordnet ist und zur Feinabstimmung in den einzelnen Kammern unterschiedliche Windungszahlen der Hochspannungswicklung angeordnet sind.2. Line transformer according to claim 1, characterized in that the high-voltage winding is arranged on a bobbin with a plurality of chambers and different numbers of turns of the high-voltage winding are arranged for fine-tuning in the individual chambers.
EP82111028A 1981-12-28 1982-11-29 Line transformer for television receivers Expired EP0082966B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3151642 1981-12-28
DE19813151642 DE3151642A1 (en) 1981-12-28 1981-12-28 LINE TRANSFORMER FOR TELEVISION DEVICES

Publications (2)

Publication Number Publication Date
EP0082966A1 true EP0082966A1 (en) 1983-07-06
EP0082966B1 EP0082966B1 (en) 1985-09-25

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ID=6149879

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EP82111028A Expired EP0082966B1 (en) 1981-12-28 1982-11-29 Line transformer for television receivers

Country Status (4)

Country Link
EP (1) EP0082966B1 (en)
DE (2) DE3151642A1 (en)
ES (1) ES518626A0 (en)
FI (1) FI824335A7 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0735552A1 (en) * 1995-03-27 1996-10-02 Deutsche Thomson-Brandt Gmbh High voltage transformer for a television receiver
FR2783965A1 (en) * 1998-09-30 2000-03-31 Thomson Television Components HIGH VOLTAGE TRANSFORMER

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE180101T1 (en) * 1992-08-04 1999-05-15 Thomson Brandt Gmbh HIGH VOLTAGE FLYER TRANSFORMER FOR A TELEVISION RECEIVER
DE4225692A1 (en) * 1992-08-04 1994-02-10 Thomson Brandt Gmbh HV line transformer for TV receiver - has ratio of axial total length of coils to OD of HV coil considerably less than unity

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2504355A1 (en) * 1974-02-04 1975-08-14 Hitachi Ltd ELECTRON BEAM HIGH VOLTAGE GENERATOR
DE2607368A1 (en) * 1976-02-24 1977-08-25 Licentia Gmbh Line transformer for TV receiver - avoids mechanical adjustment by having inner and outer parts of HV winding wound in given way on LV winding
DE2944220A1 (en) * 1979-11-02 1981-05-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt LINE TRANSFORMER FOR A TELEVISION RECEIVER

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2612465B1 (en) * 1976-03-24 1977-06-08 Nordmende Flyback transformer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2504355A1 (en) * 1974-02-04 1975-08-14 Hitachi Ltd ELECTRON BEAM HIGH VOLTAGE GENERATOR
DE2607368A1 (en) * 1976-02-24 1977-08-25 Licentia Gmbh Line transformer for TV receiver - avoids mechanical adjustment by having inner and outer parts of HV winding wound in given way on LV winding
DE2944220A1 (en) * 1979-11-02 1981-05-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt LINE TRANSFORMER FOR A TELEVISION RECEIVER

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0735552A1 (en) * 1995-03-27 1996-10-02 Deutsche Thomson-Brandt Gmbh High voltage transformer for a television receiver
US5844793A (en) * 1995-03-27 1998-12-01 Deutsche Thomson Brandt Gmbh High-voltage transformer for a televison receiver including separated partial windings tuned to different harmonics
FR2783965A1 (en) * 1998-09-30 2000-03-31 Thomson Television Components HIGH VOLTAGE TRANSFORMER
EP0991091A1 (en) * 1998-09-30 2000-04-05 Thomson Television Components France High voltage transformer
US6211766B1 (en) 1998-09-30 2001-04-03 Thomson Television Components France High voltage transformer

Also Published As

Publication number Publication date
FI824335L (en) 1983-06-29
FI824335A0 (en) 1982-12-16
EP0082966B1 (en) 1985-09-25
DE3266581D1 (en) 1985-10-31
ES8309051A1 (en) 1983-10-01
FI824335A7 (en) 1983-06-29
DE3151642A1 (en) 1983-07-14
ES518626A0 (en) 1983-10-01

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