EP0047497A1 - Transformer - Google Patents

Transformer Download PDF

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Publication number
EP0047497A1
EP0047497A1 EP19810106887 EP81106887A EP0047497A1 EP 0047497 A1 EP0047497 A1 EP 0047497A1 EP 19810106887 EP19810106887 EP 19810106887 EP 81106887 A EP81106887 A EP 81106887A EP 0047497 A1 EP0047497 A1 EP 0047497A1
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EP
European Patent Office
Prior art keywords
windings
winding
electrically conductive
transformer
primary winding
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.)
Withdrawn
Application number
EP19810106887
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German (de)
French (fr)
Inventor
Karl Heinz Ing.(Grad.) Black
Klaus Ing.(Grad.) Fischer
Karl-Hans Schmadel
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke 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
Application filed by Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of EP0047497A1 publication Critical patent/EP0047497A1/en
Withdrawn legal-status Critical Current

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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 transformer for generating high voltage in television sets with a primary winding and with secondary windings arranged concentrically to the primary winding in the axial direction and connected to one another via diodes.
  • Transformers of this type have the disadvantage that complex winding processes are required for their manufacture and that a complicatedly constructed bobbin is required as a support for the windings.
  • a simple winding construction, while avoiding additional intermediate insulation layers, can be achieved according to an advantageous further development of the invention in that the electrically conductive foils forming the windings consist of metal-coated, electrically insulating plastic foils.
  • the internal resistance of the high-voltage source formed by the transformer can be significantly reduced in that the winding widths of the electrically conductive foils are dimensioned such that the secondary windings are harmonic to the lines frequency are matched and also reduce in that the number of turns of the electrically conductive foils forming the secondary windings are dimensioned such that the secondary windings are tuned to harmonics of the line frequency.
  • the internal resistance of the high-voltage source formed by the transformer can additionally be reduced in that the primary winding is formed by at least one winding made of electrically conductive film, the magnetic coupling between the primary winding and the secondary windings being able to be improved thereby that the primary winding is divided into interconnected partial windings, each of the partial windings is formed by a winding of electrically conductive foil, the partial windings are arranged next to one another in the axial direction, and each secondary winding is assigned a partial winding of the primary winding.
  • a simple construction of such a transformer which at the same time ensures high operational reliability of the transformer, consists, according to an advantageous development of the invention, in that the diodes are connected via metal strips to the ends of the windings which form the secondary windings and are made of electrically conductive foil.
  • the strips can be attached to the diode connections, for example, by spot or ultrasonic welding and on the metal layer of the electrically conductive film of the secondary winding by gluing with a conductive adhesive or with the aid of ultrasonic welding.
  • transformers according to the invention have a low internal resistance with a simple construction as a high voltage source.
  • transformers according to the invention are very reliable since there are no corona discharge faults.
  • complex measures for insulation can be dispensed with in the case of transformers according to the invention.
  • the figure shows a section in the axial direction containing the center line through a transformer according to the invention.
  • Figure 2 shows such a transformer in a side view.
  • the windings which form the secondary windings of the transformer according to the invention and are made of electrically conductive film.
  • the windings made of electrically conductive foil, which form the secondary windings 1, 2 and 3, consist of the insulating plastic foils 4, 5 and 6 coated with metal. 7, 8 and 9 show the metal layers, which consist for example of aluminum and are vapor-deposited onto the plastic foils.
  • the plastic films 4, 5 and 6 are not coated with metal for better electrical insulation in the edge areas.
  • the secondary windings are connected to one another via the diodes 10, 11 and 12. This is indicated in FIG. 1 and is explained in more detail in FIG. 2.
  • the secondary windings are wound on a coil former 13, which can also be dispensed with in order to achieve an inexpensive construction.
  • the primary winding of the transformer also consists of a winding 14 made of plastic film 15 coated with metal 16.
  • the primary winding 14 is also wound on a coil former 17.
  • the core of the transformer arranged in the coil former 17 is not shown in the figures.
  • the primary winding consists of a single winding.
  • the transformer according to the invention shown in FIG. 2 of the type shown in FIG. 1 has windings 1, 2 and 3 made of plastic films 4, 5 and 6 coated with metal 7, 8 and 9 as secondary windings.
  • the windings 1, 2 and 3 are connected to one another via the diodes 10, 11 and 12.
  • the connections of the diodes 10, 11 and 12 are connected to the windings 1, 2 and 3 via metal strips 18, 19, 20, 21 and 22.
  • the metal strips 18, 19, 20, 21 and 22 can be connected, for example by welding, to the connections of the diodes 10, 11 and 12, while the metal strips 18, 19, 20, 21 and 22 with the metal layers 7, 8 and 9 of the :
  • Windings 1, 2 and 3 are connected in an electrically conductive manner, for example using a conductive adhesive or by ultrasonic welding.
  • the external wiring of the transformer can also be made using appropriate metal strips.
  • the secondary windings By dimensioning the secondary windings according to the invention, these can be tuned to approximately harmonics of the line frequency, so that the high-voltage source formed by the transformer has a low internal resistance.
  • Transformers according to the invention of the type illustrated in FIGS. 1 and 2 are cast with a hot or cold-curing synthetic resin compound after completion of the winding structure and the external wiring with diodes and possibly further components, so that a compact high-voltage unit for color television and black and white television sets results supplies the anode voltage for the picture tubes and possibly other switching stages of the television sets.

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

Abstract

A transformer is proposed for the generation of high-tension in television sets, having a primary winding and secondary windings, connected to one another via diodes and arranged adjacent to one another, concentric to the primary winding in the axial direction, in which the secondary windings are formed in each case from one winding of electrically conductive foil so that a low internal resistance is produced for the transformer as a high-tension source. <IMAGE>

Description

Stand der TechnikState of the art

Die Erfindung betrifft einen Transformator zur Hochspannungserzeugung in Fernsehgeräten mit einer Primärwicklung und mit konzentrisch zur Primärwicklung in axialer Richtung nebeneinander angeordneten und untereinander über Dioden verbundenen Sekundärwicklungen.The invention relates to a transformer for generating high voltage in television sets with a primary winding and with secondary windings arranged concentrically to the primary winding in the axial direction and connected to one another via diodes.

Transformatoren dieser Art weisen den Nachteil auf, daß für ihre Herstellung aufwendige Wickelverfahren erforderlich sind und als Träger für die Wicklungen ein kompliziert aufgebauter Spulenkörpe erforderlich ist.Transformers of this type have the disadvantage that complex winding processes are required for their manufacture and that a complicatedly constructed bobbin is required as a support for the windings.

Die Erfindung und ihre VorteileThe invention and its advantages

Diese Nachteile werden bei einem Transformator der eingangs erwähnten Art dadurch vermieden, daß die Sekundärwicklungen von jeweils einer Wicklung aus elektrisch leitfähiger Folie gebildet sind.These disadvantages are avoided in a transformer of the type mentioned at the outset in that the secondary windings are each formed by a winding made of electrically conductive film.

Ein einfacher Wicklungsaufbau unter Vermeidung von zusätzlichen Isolationszwischenlagen läßt sich nach einer vorteilhaften Weiterbildung der Erfindung dadurch erzielen, daß die die Wicklungen bildenden elektrisch leitfähigen Folien aus mit metallbeschichteten elektrisch isolierenden Kunststoffolien bestehen.A simple winding construction, while avoiding additional intermediate insulation layers, can be achieved according to an advantageous further development of the invention in that the electrically conductive foils forming the windings consist of metal-coated, electrically insulating plastic foils.

Gemäß vorteilhafter Ausgestaltung der Erfindung läßt sich der Innenwiderstand der von dem Transformator gebildeten Hochspannungsquelle dadurch deutlich vermindern, daß die elektrisch leitfähigen Folien in ihren Wicklungsbreiten derart bemessen sind, daß die Sekundärwicklungen auf Harmonische der Zeilenfrequenz abgestimmt sind und auch dadurch vermindern, daß die Windungszahlen der die Sekundärwicklungen bildenden elektrisch leitfähigen Folien derart bemessen werden, daß die Sekundärwicklungen auf Harmonische der Zeilenfrequenz abgestimmt sind.According to an advantageous embodiment of the invention, the internal resistance of the high-voltage source formed by the transformer can be significantly reduced in that the winding widths of the electrically conductive foils are dimensioned such that the secondary windings are harmonic to the lines frequency are matched and also reduce in that the number of turns of the electrically conductive foils forming the secondary windings are dimensioned such that the secondary windings are tuned to harmonics of the line frequency.

Gemäß weiterer vorteilhafter Ausgestaltung der Erfindung läßt sich der Innenwiderstand der von dem Transformator gebildeten Hochspannungsquelle noch zusätzlich dadurch verringern, daß die Primärwicklung von mindestens einer Wicklung aus elektrisch leitfähiger Folie gebildet wird, wobei sich die magnetische Kopplung zwischen der Primärwicklung und den Sekundärwicklungen noch dadurch verbessern läßt, daß die Primärwicklung in untereinander verbundene Teilwicklungen aufgeteilt wird, jede der Teilwicklungen von jeweils einer Wicklung aus elektrisch leitfähiger Folie gebildet wird, die Teilwicklungen in axialer Richtung nebeneinander angeordnet werden und jeder Sekundärwicklung eine Teilwicklung der Primärwicklung zugeordnet ist.According to a further advantageous embodiment of the invention, the internal resistance of the high-voltage source formed by the transformer can additionally be reduced in that the primary winding is formed by at least one winding made of electrically conductive film, the magnetic coupling between the primary winding and the secondary windings being able to be improved thereby that the primary winding is divided into interconnected partial windings, each of the partial windings is formed by a winding of electrically conductive foil, the partial windings are arranged next to one another in the axial direction, and each secondary winding is assigned a partial winding of the primary winding.

Ein einfacher Aufbau eines derartigen Transformators, der zugleich eine hohe Betriebssicherheit des Transformators gewährleistet, besteht gemäß einer vorteilhaften Weiterbildung der Erfindung darin, daß die Dioden über Metallstreifen mit den Enden der die Sekundärwicklungen bildenden Wicklungen aus elektrisch leitfähiger Folie verbunden sind. Dabei können die Streifen an den Diodenanschlüssen beispielsweise durch Punkt- oder Ultraschallschweißen und auf der Metallschicht der elektrisch leitfähigen Folie der Sekundärwicklung durch Klebung mit einem leitfähigen Klebstoff oder mit Hilfe von Ultraschallschweißung befestigt werden.A simple construction of such a transformer, which at the same time ensures high operational reliability of the transformer, consists, according to an advantageous development of the invention, in that the diodes are connected via metal strips to the ends of the windings which form the secondary windings and are made of electrically conductive foil. The strips can be attached to the diode connections, for example, by spot or ultrasonic welding and on the metal layer of the electrically conductive film of the secondary winding by gluing with a conductive adhesive or with the aid of ultrasonic welding.

Die Vorteile der vorliegenden Erfindung liegen insbesondere darin, daß erfindungsgemäße Transformatoren bei einem einfachen Aufbau als Hochspannungsquelle einen geringen Innenwiderstand anweisen. Darüber hinaus sind erfindungsgemäße Transformatoren sehr betriebssicher, da keine Störungen durch Coronaentladungen auftreten. Ferner kann bei erfindungsgemäßen Transformatoren auf aufwendige Maßnahmen zur Isolation verzichtet werden.The advantages of the present invention are in particular that transformers according to the invention have a low internal resistance with a simple construction as a high voltage source. In addition, transformers according to the invention are very reliable since there are no corona discharge faults. Furthermore, complex measures for insulation can be dispensed with in the case of transformers according to the invention.

Zeichnungdrawing

Die Erfindung wird nachfolgend an den Figuren 1 und 2 näher erläutert.The invention is explained in more detail below with reference to FIGS. 1 and 2.

Dabei zeigt die Figur einen in axialer Richtung die Mittellinie enthaltenden Schnitt durch einen erfindungsgemäßen Transformator.The figure shows a section in the axial direction containing the center line through a transformer according to the invention.

Die Figur 2 zeigt einen solchen Transformator in einer Seitenansicht.Figure 2 shows such a transformer in a side view.

In der Figur 1 zeigen 1, 2 und 3 die die Sekundärwicklungen des erfindungsgemäßen Transformators bildenden Wicklungen aus elektrisch leitfähiger Folie. Die die Sekundärwicklungen 1, 2 und 3 bildenden Wicklungen aus elektrisch leitfähiger Folie bestehen aus den mit Metall beschichteten isolierenden Kunststofffolien 4, 5 und 6. Dabei zeigen 7, 8 und 9 die Metallschichten, die beispielsweise aus Aluminium bestehen und auf die Kunststoffolien aufgedampft werden. Die Kunststoffolien 4, 5 und 6 sind zur besseren elektrischen Isolation in den Randbereichen nicht mit Metall beschichtet. Die Sekundärwicklungen sind über die Dioden 10, 11 und 12 untereinander verbunden. Dies ist in der Figur 1 angedeutet und wird an der Figur 2 näher erläutert. Die Sekundärwicklungen sind auf einen Spulenkörper 13 gewickelt, auf den zur Erzielung eines kostengünstigen Aufbaus auch verzichtet werden kann.1, 2 and 3 show the windings which form the secondary windings of the transformer according to the invention and are made of electrically conductive film. The windings made of electrically conductive foil, which form the secondary windings 1, 2 and 3, consist of the insulating plastic foils 4, 5 and 6 coated with metal. 7, 8 and 9 show the metal layers, which consist for example of aluminum and are vapor-deposited onto the plastic foils. The plastic films 4, 5 and 6 are not coated with metal for better electrical insulation in the edge areas. The secondary windings are connected to one another via the diodes 10, 11 and 12. This is indicated in FIG. 1 and is explained in more detail in FIG. 2. The secondary windings are wound on a coil former 13, which can also be dispensed with in order to achieve an inexpensive construction.

Die Primärwicklung des Transformators besteht ebenfalls aus einer Wicklung 14 aus mit Metall 16 beschichteter Kunststoffolie 15. Die Primärwicklung 14 ist ebenfalls auf einen Spulenkörper 17 gewickelt. Der in dem Spulenkörper 17 angeordnete Kern des Transformators ist in den Figuren nicht dargestellt. Bei dem in der Figur 1 dargestellten Transformator besteht die Primärwicklung aus einer einzelnen Wicklung. Es liegt jedoch auch im Rahmen der Erfindung, die Primärwicklung in in der Figur nicht dargestellter Weise aus mehreren untereinander verbundenen und den Wicklungen der Sekundärwicklung zugeordneten Teilwicklungen aufzubauen, so daß sich eine gute Kopplung der Teilwicklungen der Primärwicklung zu den Sekundärwicklungen ergibt.The primary winding of the transformer also consists of a winding 14 made of plastic film 15 coated with metal 16. The primary winding 14 is also wound on a coil former 17. The core of the transformer arranged in the coil former 17 is not shown in the figures. In the transformer shown in Figure 1, the primary winding consists of a single winding. However, it is also within the scope of the invention to construct the primary winding in a manner not shown in the figure from a plurality of sub-windings connected to one another and assigned to the windings of the secondary winding, so that there is good coupling of the partial windings of the primary winding to the secondary windings.

Der in der Figur 2 dargestellte erfindungsgemä3e Transformator der in der Figur 1 dargestellten.Art weist die Wicklungen 1, 2 und 3 aus mit Metall 7, 8 und 9 beschichteten Kunststoffolien 4, 5 und 6 als Sekundärwicklungen auf. Die Wicklungen 1, 2 und 3 sind über die Dioden 10, 11 und 12 untereinander verbunden. Dabei sind die Anschlüsse der Dioden 10, 11 und 12 über Metallstreifen 18, 19, 20, 21 und 22 mit den Wicklungen 1, 2 und 3 verbunden. Hierzu können die Metallstreifen 18, 19, 20, 21 und 22 beispielsweise durch Schweißung mit den Anschlüssen der Dioden 10, 11 und 12 verbunden werden, während die Metallstreifen 18, 19, 20, 21 und 22 mit den Metallschichten 7, 8 und 9 der : Wicklungen 1, 2 und 3 beispielsweise unter Verwendung eines Leitklebers oder durch Ultraschallschweißen elektrisch leitend verbunden werden. Über entsprechende Metallstreifen läßt sich auch die äußere Beschaltung des Transformators herstellen.The transformer according to the invention shown in FIG. 2 of the type shown in FIG. 1 has windings 1, 2 and 3 made of plastic films 4, 5 and 6 coated with metal 7, 8 and 9 as secondary windings. The windings 1, 2 and 3 are connected to one another via the diodes 10, 11 and 12. The connections of the diodes 10, 11 and 12 are connected to the windings 1, 2 and 3 via metal strips 18, 19, 20, 21 and 22. For this purpose, the metal strips 18, 19, 20, 21 and 22 can be connected, for example by welding, to the connections of the diodes 10, 11 and 12, while the metal strips 18, 19, 20, 21 and 22 with the metal layers 7, 8 and 9 of the : Windings 1, 2 and 3 are connected in an electrically conductive manner, for example using a conductive adhesive or by ultrasonic welding. The external wiring of the transformer can also be made using appropriate metal strips.

Durch erfindungsgemäße Bemessung der Sekundärwicklungen lassen sich diese auf annähernd Harmonische der Zeilenfrequenz abstimmen, so daß die von dem Transformator gebildete Hochspannungsquelle einen geringen Innenwiderstand aufweist.By dimensioning the secondary windings according to the invention, these can be tuned to approximately harmonics of the line frequency, so that the high-voltage source formed by the transformer has a low internal resistance.

Erfindungsgemäße Transformatoren der in den Figuren 1 und 2 dargestellten Art werden nach Fertigstellung des Wicklungsaufbaues und der äußeren Beschaltung mit Dioden und ggf. weiteren Bauelementen mit einer heiß- oder kaltaushärtenden Kunstharzmasse vergossen, so daß sich eine kompakte Hochspannungsbaueinheit für Farbfernseh- und Schwarzweißfernsehgeräte ergibt, die die Anodenspannung für die Bildröhren sowie ggf. andere Schaltungsstufen der Fernsehgeräte liefert.Transformers according to the invention of the type illustrated in FIGS. 1 and 2 are cast with a hot or cold-curing synthetic resin compound after completion of the winding structure and the external wiring with diodes and possibly further components, so that a compact high-voltage unit for color television and black and white television sets results supplies the anode voltage for the picture tubes and possibly other switching stages of the television sets.

Claims (7)

1. Transformator zur Hochspannungserzeugung in Fernsehgeräten mit einer Primärwicklung und mit konzentrisch zur Primärwicklung in axialer Richtung nebeneinander angeordneten und untereinander über Dioden verbundenen Sekundärwicklungen, dadurch gekennzeichnet, daß die bekundärwicklungen von jeweils einer Wicklung (1, 2, 3) aus elektrisch leitfähiger Folie (4, 5, 6) gebildet sind.1. Transformer for generating high voltage in television sets with a primary winding and with secondary windings arranged concentrically to the primary winding in the axial direction next to one another and connected to one another via diodes, characterized in that the custom windings each have a winding (1, 2, 3) made of electrically conductive film (4 , 5, 6) are formed. 2. Transformator nach Ansprunch 1, dadurch gekennzeichnet, daß die die Wicklungen (1, 2, 3) bildenden elektrisch leitfähigen Folien ans mit Metall (7, 8, 9) beschichteten, elektrisch isolierenden Kunststoffolien (4, 5,6) bestehen.2. Transformer according to claim 1, characterized in that the windings (1, 2, 3) forming electrically conductive foils ans with metal (7, 8, 9) coated, electrically insulating plastic foils (4, 5, 6). 3. Transformator nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die elektrisch leitfähigen Folien (4, 5, 6) in ihren Wicklungsbreiten derart bemessen sind, daß die Sekundärwicklungen auf Harmonische der Zeilenfrequenz abgestimmt sind.3. Transformer according to one of claims 1 and 2, characterized in that the electrically conductive foils (4, 5, 6) are dimensioned in their winding widths such that the secondary windings are tuned to harmonics of the line frequency. 4. Transformator nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die Windungszahlen der die Sekundärwicklungen bildenden elektrisch leitfähigen Folien (4, 5, 6) derart bemessen sind, daß die Sekundärwicklungen auf Harmonische der Zeilenfrequenz abgestimmt sind.4. Transformer according to one of claims 1 and 2, characterized in that the number of turns of the secondary windings forming electrically conductive films (4, 5, 6) are dimensioned such that the secondary windings are tuned to harmonics of the line frequency. 5. Transformator nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Primärwicklung von mindestens einer Wicklung (14) aus elektrisch leitfähiger Folie (15) gebildet ist.5. Transformer according to one of claims 1 to 4, characterized in that the primary winding is formed by at least one winding (14) made of electrically conductive film (15). 6. Transformator nach Anspruch 5, dadurch gekennzeichnet, daß die Primärwicklung in untereinander verbundene Teilwicklungen aufgeteilt ist, jede der Teilwicklungen von jeweils einer Wicklung aus elektrisch leitfähiger Folie gebildet ist, die Teilwicklungen in axialer Richtung nebeneinander angeordnet sind und jeder Sekundärwicklung eine Teilwicklung der Primärwicklung zugeordnet ist.6. Transformer according to claim 5, characterized in that the primary winding is divided into interconnected partial windings, each of the partial windings is each formed by a winding of electrically conductive foil, the partial windings are arranged next to one another in the axial direction and each secondary winding is assigned a partial winding of the primary winding is. 7. Transformator nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Dioden (10, 11, 12) über Metallstreifen (18, 19, 20, 21, 22) mit den Enden der die Sekundärwicklungen bildenden Wicklungen (4, 5, 6) aus elektrisch leitfähiger Folie (7, 3, 9) verbunden sind.7. Transformer according to one of claims 1 to 6, characterized in that the diodes (10, 11, 12) via metal strips (18, 19, 20, 21, 22) with the ends of the windings forming the secondary windings (4, 5, 6) of electrically conductive film (7, 3, 9) are connected.
EP19810106887 1980-09-10 1981-09-03 Transformer Withdrawn EP0047497A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803033979 DE3033979A1 (en) 1980-09-10 1980-09-10 TRANSFORMER
DE3033979 1980-09-10

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122546A1 (en) * 1983-04-08 1984-10-24 Deutsche Thomson-Brandt GmbH Flyback transformer
GB2163908A (en) * 1984-09-01 1986-03-05 Marconi Co Ltd A transformer
US4689593A (en) * 1984-09-01 1987-08-25 The Marconi Company Limited Transformer with balanced transmission lines
EP0286980A1 (en) * 1987-04-14 1988-10-19 Zanussi Elettromeccanica S.p.A. High-voltage transformer
WO1992010906A1 (en) * 1990-12-10 1992-06-25 Deutsche Thomson-Brandt Gmbh High-voltage transformer
US5576681A (en) * 1990-12-10 1996-11-19 Deutsche Thomson-Brandt Gmbh High voltage transformer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551259B1 (en) * 1983-08-25 1985-11-08 Siemens Sa HIGH VOLTAGE TRANSFORMER
DE4142522A1 (en) * 1991-12-21 1993-06-24 Thomson Brandt Gmbh Winding process for HV transformer for TV receiver - winding formed in grooves in former with support for diodes on outer surface.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069705B (en) * 1959-11-26
DE1256687B (en) * 1965-11-03 1967-12-21 Telefunken Patent Line deflection transformer with high voltage winding
DE1908824A1 (en) * 1969-02-21 1970-09-10 Siemens Ag Insulating tape with conductive film
DE2351130A1 (en) * 1973-10-10 1975-05-07 Hitachi Ltd RETURN TRANSFORMER
DE2504355A1 (en) * 1974-02-04 1975-08-14 Hitachi Ltd ELECTRON BEAM HIGH VOLTAGE GENERATOR
FR2266274A1 (en) * 1974-03-28 1975-10-24 Videon Sa Very high voltage transformer - has winding of conductive and insulating layers around a tube with ferrite core
DE2612465B1 (en) * 1976-03-24 1977-06-08 Nordmende Flyback transformer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069705B (en) * 1959-11-26
DE1256687B (en) * 1965-11-03 1967-12-21 Telefunken Patent Line deflection transformer with high voltage winding
DE1908824A1 (en) * 1969-02-21 1970-09-10 Siemens Ag Insulating tape with conductive film
DE2351130A1 (en) * 1973-10-10 1975-05-07 Hitachi Ltd RETURN TRANSFORMER
DE2504355A1 (en) * 1974-02-04 1975-08-14 Hitachi Ltd ELECTRON BEAM HIGH VOLTAGE GENERATOR
FR2266274A1 (en) * 1974-03-28 1975-10-24 Videon Sa Very high voltage transformer - has winding of conductive and insulating layers around a tube with ferrite core
DE2612465B1 (en) * 1976-03-24 1977-06-08 Nordmende Flyback transformer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122546A1 (en) * 1983-04-08 1984-10-24 Deutsche Thomson-Brandt GmbH Flyback transformer
GB2163908A (en) * 1984-09-01 1986-03-05 Marconi Co Ltd A transformer
US4689593A (en) * 1984-09-01 1987-08-25 The Marconi Company Limited Transformer with balanced transmission lines
EP0286980A1 (en) * 1987-04-14 1988-10-19 Zanussi Elettromeccanica S.p.A. High-voltage transformer
WO1992010906A1 (en) * 1990-12-10 1992-06-25 Deutsche Thomson-Brandt Gmbh High-voltage transformer
TR25836A (en) * 1990-12-10 1993-09-01 Thomson Brandt Gmbh HIGH VOLTAGE FOR A TELEVISION RECEIVER
US5576681A (en) * 1990-12-10 1996-11-19 Deutsche Thomson-Brandt Gmbh High voltage transformer

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