EP0291575A2 - Horizontal deflection transformer - Google Patents

Horizontal deflection transformer Download PDF

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Publication number
EP0291575A2
EP0291575A2 EP87117878A EP87117878A EP0291575A2 EP 0291575 A2 EP0291575 A2 EP 0291575A2 EP 87117878 A EP87117878 A EP 87117878A EP 87117878 A EP87117878 A EP 87117878A EP 0291575 A2 EP0291575 A2 EP 0291575A2
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EP
European Patent Office
Prior art keywords
winding
horizontal deflection
voltage
primary
deflection 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
EP87117878A
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German (de)
French (fr)
Other versions
EP0291575B1 (en
EP0291575A3 (en
Inventor
Klaus Neuhaus
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Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Original Assignee
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
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Priority to AT87117878T priority Critical patent/ATE81243T1/en
Publication of EP0291575A2 publication Critical patent/EP0291575A2/en
Publication of EP0291575A3 publication Critical patent/EP0291575A3/en
Application granted granted Critical
Publication of EP0291575B1 publication Critical patent/EP0291575B1/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
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • 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 horizontal deflection transformer for television sets, preferably in connection with a voltage multiplication circuit, the transformer winding being divided into a primary winding and a high-voltage winding being accommodated in a plurality of winding chambers.
  • the object of the invention is therefore to design the coil structure for a horizontal deflection transformer for television sets for generating high voltage in connection with a voltage multiplication circuit of a known type so that the transformer has a simple structure, the voltage multiplication circuit with a frequency of over 20 kHz, e.g. 32 kHz works perfectly, the transformer has a lower internal resistance in the high-voltage transformer part at higher frequency than previous transformers of this type, and there is less leakage inductance between the high-voltage and primary winding.
  • FIG. 1 shows a horizontal deflection transformer 1 which can be used for television sets and consists essentially of a base 2 with soldering pins 2 ⁇ and a chamber coil former 3 with inserted wire windings 4, 5 and a ferrite core 6 (not shown in more detail).
  • the windings are divided into primary windings 4 and high-voltage windings 5, and, if necessary, into a coupling winding 7, which the Primary winding is assigned.
  • the primary winding is arranged in the form of partial windings 4a, 4b, 4c, etc. on the cylindrical chamber bobbin 3, namely that each partial winding is arranged at a predetermined distance from the previous partial winding.
  • the high-voltage winding is divided into partial windings 5a, 5b, 5c, etc., and these partial windings are arranged in the spaces that result between the primary windings.
  • the base 2 and the chamber bobbin 3 for the primary and high-voltage winding with the respective separators are injection-molded in one piece from plastic.
  • the solder pins 2 ⁇ are pressed into the base 2 in a known manner.
  • the deflection transformer is essentially completed. If necessary, the transformer can then be immersed in an insulating compound or poured out according to a predetermined shape.
  • Figure 2 shows the cylindrical core part of the chamber bobbin 3 in section and shows that the ferrite core 6 has a flattened interior of the chamber bobbin 3. This flattening is filled by the core of the coil body 3 and a groove-shaped recess 8 is made in this material accumulation. A wire end of the primary winding is inserted into this groove-shaped recess.
  • FIG. 3 shows a possibility in which the recess 8 in the chamber bobbin 3 is covered by an insulating strip 9 for inserting the wire end of the primary winding.
  • the insulating strip 9 is injection-molded in one piece with the chamber bobbin from sufficiently elastic plastic, and is connected to it at the edge of the groove-shaped recess 8 by means of a so-called plastic film hinge. After the wire end of the primary winding has been inserted into the groove-shaped recess 8, the insulating strip 9 is inevitably pressed over the recess 8 when the windings are introduced into the different coil chambers and closes the latter, as can be seen from FIG. 3a, which represents an enlarged detail of FIG. 3 is.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Television Scanning (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulating Of Coils (AREA)

Abstract

Horizontal deflection transformers for television sets which are used in conjunction with a circuit for voltage multiplication predominantly consist of two coil formers, pushed coaxially into one another, with separate primary winding and pushed-on high-voltage winding. Such a construction is elaborate and the pulse duration to be utilised is considerably reduced at an operating frequency of over 20 kHz, for example 32 kHz. The novel deflection transformer is intended to exhibit a simple construction and the voltage multiplication circuit should operate correctly with a frequency of, for example, 32 kHz and more. In order to use a horizontal deflection transformer for television sets for generating high voltage in conjunction with a voltage multiplication circuit at frequencies of much over 20 kHz, a particular allocation of particular winding areas of the primary winding to particular winding areas of the high-voltage winding is required. The horizontal deflection transformer having the novel winding configuration is also suitable for operating frequencies of 64 kHz in conjunction with a voltage multiplication circuit. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Horizontal-Ablenktransformator für Fernsehgeräte, vorzugsweise in Verbindung mit einer Spannungsvervielfachungsschaltung, wobei die Trafowicklung in eine Primärwicklung und eine Hochvoltwicklung unterteilt in mehreren Wickelkammern untergebracht ist.The invention relates to a horizontal deflection transformer for television sets, preferably in connection with a voltage multiplication circuit, the transformer winding being divided into a primary winding and a high-voltage winding being accommodated in a plurality of winding chambers.

Es ist bekannt, in Fernsehgeräten den erforderlichen Horizontal-Ablenktransformator auch in Verbindung mit einer Schaltung zur Spannungsvervielfachung zu verwenden, und die Primärwicklung in mehreren Wickelkammern eines Spulenkörpers unterzubringen, sowie die Hochvoltwicklung über die Primärwicklung koaxial aufzuschieben. Transformatoren mit koaxial ineinandergesteckten Spulenkörpern mit entsprechend aufgebrachten Wicklungen sind aufwendig, und ein derartig aufgebauter Trafo ist bei Frequenzen die über 20 kHz liegen, z.B. bei 32 kHz und mehr mit erheblichen Nachteilen verbunden, denn die für die Hochspannungserzeugung zu nutzende Impulsdauer verringert sich bei höheren Frequenzen. Wird bei Trafos bisherigen Aufbaus die Frequenz des zur Hochspannung genutzten Impulses erhöht, so verringert sich der Stromflußwinkel unter sonst gleichen Voraussetzungen, was eine geringere Impulsdauer ergibt und eine Vergrößerung des Innenwiderstandes zur Folge hat. Das gilt auch für den dynamischen Innenwiderstand, der für das sogenannte Weißbildverhalten von besonderer Bedeutung ist.It is known to use the required horizontal deflection transformer in television sets also in connection with a circuit for voltage multiplication, and to accommodate the primary winding in several winding chambers of a coil former, and to coaxially postpone the high-voltage winding via the primary winding. Transformers with coaxially nested coil formers with correspondingly applied windings are complex, and a transformer constructed in this way is used at frequencies above 20 kHz, for example at 32 kHz and more associated with considerable disadvantages, because the pulse duration to be used for the generation of high voltage is reduced at higher frequencies. If the frequency of the pulse used for high voltage is increased in transformers up to now, the current flow angle decreases under otherwise identical conditions, which results in a shorter pulse duration and an increase in the internal resistance. This also applies to the dynamic internal resistance, which is of particular importance for the so-called white image behavior.

Aufgabe der Erfindung ist es daher, den Spulenaufbau für einen Horizontal-Ablenktransformator für Fernsehgeräte zur Erzeugung von Hochspannung in Verbindung mit einer Spannungsvervielfachungschaltung bekannter Art so zu gestalten, daß der Trafo einen einfachen Aufbau aufweist, die Spannungsvervielfachungsschaltung mit einer Frequenz von über 20 kHz, z.B. 32 kHz einwandfrei arbeitet, der Trafo gegenüber bisherigen Transformatoren dieser Art einen geringeren Innenwiderstand im Hochvolt-Trafoteil bei erhöhter Frequenz aufweist, sowie eine geringere Streuinduktivität zwischen Hochvolt- und Primärwicklung gegeben ist.The object of the invention is therefore to design the coil structure for a horizontal deflection transformer for television sets for generating high voltage in connection with a voltage multiplication circuit of a known type so that the transformer has a simple structure, the voltage multiplication circuit with a frequency of over 20 kHz, e.g. 32 kHz works perfectly, the transformer has a lower internal resistance in the high-voltage transformer part at higher frequency than previous transformers of this type, and there is less leakage inductance between the high-voltage and primary winding.

Zur Lösung der Aufgabe werden erfindungsgemäß die im kennzeichnenden Teil des Anspruchs 1 angegebenen Maßnahmen vorgeschlagen.To achieve the object, the measures specified in the characterizing part of claim 1 are proposed according to the invention.

Vorteilhafte Ausgestaltungen eines erfindungsgemäß aufgebauten Horizontal-Ablenktransformators für Fernsehgeräte ergeben sich aus den Unteransprüchen.Advantageous embodiments of a horizontal deflection transformer for television sets constructed in accordance with the invention result from the subclaims.

Ein Ausführungsbeispiel wird nachfolgend anhand der schematisch dargestellten Zeichnungen näher erläutert.An embodiment is explained below with reference to the schematically illustrated drawings.

Es zeigen:

  • Fig.1 eine schematisch dargestellte Draufsicht auf einen bewickelten Kammerspulenkörper mit einem erfindungsgemäßen Wicklungsaufbau,
  • Fig.2 eine Draufsicht im Schnitt auf den Kern des Kammerspulenkörpers mit eingebrachter nutförmiger Ausnehmung und
  • Fig.3 und 3a eine Darstellung ähnlich der Fig.2, jedoch mit abdeckbarer nutförmiger Ausnehmung im Kern des Spulenkörpers.
Show it:
  • 1 shows a schematically illustrated top view of a wound chamber bobbin with a winding structure according to the invention,
  • 2 shows a plan view in section of the core of the chamber bobbin with a groove-shaped recess and
  • 3 and 3a a representation similar to FIG. 2, but with a coverable groove-shaped recess in the core of the coil body.

Die Figur 1 zeigt einen für Fernsehgeräte verwendbaren Horizontal-Ablenktransformator 1 der im wesentlichen aus einem Sockel 2 mit Lötanschlußstiften 2ʹ und aus einem Kammerspulenkörper 3 mit eingebrachten Drahtwicklungen 4, 5, sowie einem nicht näher dargestellten Ferritkern 6 besteht. Die Wicklungen sind aufgeteilt in Primärwicklungen 4 und Hochvoltwicklungen 5, sowie bedarfsweise in eine Koppelwicklung 7, die der Primärwicklung zugeordnet ist. Die Primärwicklunmg ist in Form von Teilwicklungen 4a, 4b, 4c, usw. auf dem zylinderförmigen Kammerspulenkörper 3 angeordnet, und zwar ist jede Teilwicklung mit einem vorgegebenen Abstand an die vorhergehende Teilwicklung angereiht. Ebenso ist die Hochvoltwicklung in Teilwicklungen 5a, 5b, 5c, usw. unterteilt und diese Teilwicklungen sind in den Zwischenräumen, die sich zwischen den Primärwicklungen ergeben, angeordnet. Der Sockel 2 und der Kammerspulenkörper 3 für die Primär- und Hochvoltwicklung mit den jeweiligen Trennstegen ist einstückig aus Kunststoff gespritzt. Die Lötstifte 2ʹ sind in bekannter Weise in den Sockel 2 eingedrückt. Nach dem Bewickeln des Kammerspulenkörpers 3 mit den verschiedenen Drahtwicklungen 4, 5, 7 sowie dem Anlöten der Drahtausführungen an die zugeordneten Lötstifte und dem Einstecken des Ferritkerns 6, ist der Ablenktransformator im wesentlichen fertiggestellt. Bedarfsweise kann der Trafo anschließend in eine Isoliermasse getaucht oder nach einer vorgegebnen Form ausgegossen werden.FIG. 1 shows a horizontal deflection transformer 1 which can be used for television sets and consists essentially of a base 2 with soldering pins 2ʹ and a chamber coil former 3 with inserted wire windings 4, 5 and a ferrite core 6 (not shown in more detail). The windings are divided into primary windings 4 and high-voltage windings 5, and, if necessary, into a coupling winding 7, which the Primary winding is assigned. The primary winding is arranged in the form of partial windings 4a, 4b, 4c, etc. on the cylindrical chamber bobbin 3, namely that each partial winding is arranged at a predetermined distance from the previous partial winding. Likewise, the high-voltage winding is divided into partial windings 5a, 5b, 5c, etc., and these partial windings are arranged in the spaces that result between the primary windings. The base 2 and the chamber bobbin 3 for the primary and high-voltage winding with the respective separators are injection-molded in one piece from plastic. The solder pins 2ʹ are pressed into the base 2 in a known manner. After winding the chamber bobbin 3 with the various wire windings 4, 5, 7 and soldering the wire versions to the assigned solder pins and inserting the ferrite core 6, the deflection transformer is essentially completed. If necessary, the transformer can then be immersed in an insulating compound or poured out according to a predetermined shape.

Die Figur 2 zeigt den zylinderförmigen Kernteil des Kammerspulenkörpers 3 im Schnitt und läßt erkennen, daß der Ferritkern 6 im Inneren des Kammerspulenkörpers 3 eine Abflachung aufweist. Diese Abflachung wird durch den Kern des Spulenkörpers 3 ausgefüllt und in diese Materialanhäufung ist eine nutförmige Ausnehmung 8 eingebracht. In diese nutförmige Ausnehmung ist ein Drahtende der Primärwicklung eingelegt.Figure 2 shows the cylindrical core part of the chamber bobbin 3 in section and shows that the ferrite core 6 has a flattened interior of the chamber bobbin 3. This flattening is filled by the core of the coil body 3 and a groove-shaped recess 8 is made in this material accumulation. A wire end of the primary winding is inserted into this groove-shaped recess.

Die Figur 3 zeigt eine Möglichkeit, bei der die Ausnehmung 8 im Kammerspulenkörper 3 für das Einlegen des Drahtendes der Primärwicklung durch einen Isolierstreifen 9 abgedeckt ist. Der Isolierstreifen 9 ist einstückig mit dem Kammerspulenkörper aus ausreichend elastischem Kunststoff gespritzt, und am Rande der nutförmigen Ausnehmung 8 mit diesem über ein sogenanntes Kunststoff-Filmscharnier verbunden. Nach dem Einlegen des Drahtendes der Primärwicklung in die nutförmige Ausnehmung 8 wird der Isolierstreifen 9 zwangsläufig beim Einbringen der Wicklungen in die verschiedenen Spulenkammern über die Ausnehmung 8 gedrückt und verschließt diese, wie aus der Figur 3a, die eine vergrößerte Einzelheit der Figur 3 darstellt, ersichtlich ist.FIG. 3 shows a possibility in which the recess 8 in the chamber bobbin 3 is covered by an insulating strip 9 for inserting the wire end of the primary winding. The insulating strip 9 is injection-molded in one piece with the chamber bobbin from sufficiently elastic plastic, and is connected to it at the edge of the groove-shaped recess 8 by means of a so-called plastic film hinge. After the wire end of the primary winding has been inserted into the groove-shaped recess 8, the insulating strip 9 is inevitably pressed over the recess 8 when the windings are introduced into the different coil chambers and closes the latter, as can be seen from FIG. 3a, which represents an enlarged detail of FIG. 3 is.

Claims (9)

1. Horizontal-Ablenktransformator für Fernsehgeräte, vorzugsweise in Verbindung mit einer Spannungsvervielfachungsschaltung, wobei die Trafowicklung in eine Primärwicklung und eine Hochvoltwicklung unterteilt in mehreren Wickelkammern untergebracht ist, dadurch gekennzeichnet, daß der Primärwicklung (4) eine Koppelwicklung (7) zugeordnet ist, und die Wicklungen in einem zylinderförmigen Kammerspulenkörper (3) in mehreren mit Abstand aneinandergereihten Teilwicklungen (4a, 4b, 4c, ...) angeordnet sind, und daß die Hochvoltwicklung (5) in Teilwicklungen (5a, 5b, 5c, ...) aufgeteilt in oder über den Teweiligen Zwischenräumen der Primär-Teilwicklungen angeordnet ist.1. Horizontal deflection transformer for televisions, preferably in connection with a voltage multiplication circuit, the transformer winding being divided into a primary winding and a high-voltage winding and being accommodated in a plurality of winding chambers, characterized in that the primary winding (4) is assigned a coupling winding (7), and the Windings in a cylindrical chamber bobbin (3) are arranged in several spaced partial windings (4a, 4b, 4c, ...), and that the high-voltage winding (5) is divided into partial windings (5a, 5b, 5c, ...) or is arranged over the respective spaces between the primary partial windings. 2. Horizontal-Ablenktransformator nach Anspruch 1, dadurch gekennzeichnet, daß die Teilwicklungen der Primär- und Hochvoltwicklung (4, 5) in getrennten Kammern eines vorzugsweise einstückig aus Kunststoff gespritzten zylinderförmigen Kammerspulenkörpers (3) wechselweise aneinandergereiht angeordnet sind.2. Horizontal deflection transformer according to claim 1, characterized in that the partial windings of the primary and high-voltage winding (4, 5) are arranged alternately in a row in a preferably one-piece injection molded plastic cylindrical bobbin (3). 3. Horizontal-Ablenktransformator nach Anspruch 1, dadurch gekennzeichnet, daß die Primär- und Hochvolt-Teilwicklungen getrennt auf zwei vorzugsweise einstückig aus Kunststoff gespritzten, koaxial ineinander steckbaren zylinderförmigen Kammerspulenkörper angeordnet sind, und daß nach Zusammenstecken der beiden Spulenkörper die Hochvolt-Teilwicklungen mit geringem Abstand über den Zwischenräumen der Primär-Teilwicklungen liegen.3. Horizontal deflection transformer according to claim 1, characterized in that the primary and high-voltage partial windings are arranged separately on two preferably injection-molded from plastic, coaxially pluggable cylindrical chamber bobbins, and that after plugging together the two bobbins, the high-voltage partial windings with little Distance between the spaces between the primary part windings. 4. Horizontal-Ablenktransformator nach einem der bisherigen Ansprüche, dadurch gekennzeichnet, daß die Koppelwicklung (7) der Primärwicklung (4) vorzugsweise nur in einer Kammer des Kammerspulenkörpers (3) bei einer getrennt ausgeführten Wicklungsanzapfung angeordnet ist.4. Horizontal deflection transformer according to one of the preceding claims, characterized in that the coupling winding (7) of the primary winding (4) is preferably arranged only in one chamber of the chamber bobbin (3) with a separately designed winding tap. 5. Horizontal-Ablenktransformator nach einem der bisherigen Ansprüche, dadurch gekennzeichnet, daß die Koppelwicklung (7) der Primärwicklung (4) auf mehrere Kammern des Spulenkörpers (3) aufgeteilt ist, und die Wicklungen so zwischen den Teilwicklungen der eigentlichen Primärwicklung angeordnet sind, daß eine bestimmte lagenmäßig vorgegebene Zuordnung zu entsprechenden Kammern der Hochvoltwicklung (5) bei jeweils getrennt ausgeführten Wicklungsanzapfungen gegeben ist.5. Horizontal deflection transformer according to one of the preceding claims, characterized in that the coupling winding (7) of the primary winding (4) is divided into several chambers of the coil former (3), and the windings are arranged between the partial windings of the actual primary winding that A specific positionally predetermined assignment to corresponding chambers of the high-voltage winding (5) is given for winding taps which are each carried out separately. 6. Horizontal-Ablenktransformator nach einem der bisherigen Ansprüche, dadurch gekennzeichnet, daß der Kammerspulenkörper (3) in seinem Spulenkernbereich eine durchgehende und isolierend abdeckbare nutförmige Ausnehmung aufweist, und daß in diese Ausnehmung ein Drahtende der Primärwicklung eingelegt ist.6. Horizontal deflection transformer according to one of the preceding claims, characterized in that the Chamber bobbin (3) has a continuous and insulating coverable groove-shaped recess in its coil core area, and that a wire end of the primary winding is inserted into this recess. 7. Horizontal-Ablenktransformator nach einem der bisherigen Ansprüche, dadurch gekennzeichnet, daß der in den zylinderförmigen Kammerspulenkörper (3) eingesetzte Ferritkern (6) eine Abflachung aufweist, daß der abgeflachte Bereich durch den Spulenkörper ausgefüllt ist, und in diesen Bereich eine das Drahtende der Primärspule aufnehmende nutförmige Ausnehmung (8) eingebracht ist.7. Horizontal deflection transformer according to one of the preceding claims, characterized in that the ferrite core (6) used in the cylindrical chamber bobbin (3) has a flattening, that the flattened area is filled by the bobbin, and in this area one of the wire ends Primary coil receiving groove-shaped recess (8) is introduced. 8. Horizontal-Ablenktransformator nach einem der bisherigen Ansprüche, dadurch gekennzeichnet, daß die Ausnehmung (8) im zylinderförmigen Kern des Kammerspulenkörpers (3) durchgehend über alle Kammern eingebracht ist, daß die Ausnehmung im Wickelraum der Kammern mit Isolierstreifen (9) abgedeckt ist, daß die Isolierstreifen einstückig mit dem Spulenkörper (3) gespritzt und jeder einzelne Isolierstreifen über ein am Rand der jeweiligen Ausnehmung vorhandenes Filmscharnier mit diesem verbunden ist.8. Horizontal deflection transformer according to one of the preceding claims, characterized in that the recess (8) in the cylindrical core of the chamber bobbin (3) is made continuously over all chambers, that the recess in the winding space of the chambers is covered with insulating strips (9), that the insulating strips are injection-molded in one piece with the coil former (3) and each individual insulating strip is connected to the latter via a film hinge provided at the edge of the respective recess. 9. Horizontal-Ablenktransformator nach einem der bisherigen Ansprüche, dadurch gekennzeichnet, daß der innere zylinderförmige Spulenkörperteil im Bereich der Ausnehmung (8) eine Materialverstärkung aufweist.9. Horizontal deflection transformer according to one of the preceding claims, characterized in that the inner cylindrical coil body part in the region of the recess (8) has a material reinforcement.
EP87117878A 1987-05-20 1987-12-03 Horizontal deflection transformer Expired - Lifetime EP0291575B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87117878T ATE81243T1 (en) 1987-05-20 1987-12-03 HORIZONTAL DEFLECTION TRANSFORMER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873716893 DE3716893A1 (en) 1987-05-20 1987-05-20 HORIZONTAL DEFLECTION TRANSFORMER
DE3716893 1987-05-20

Publications (3)

Publication Number Publication Date
EP0291575A2 true EP0291575A2 (en) 1988-11-23
EP0291575A3 EP0291575A3 (en) 1989-06-07
EP0291575B1 EP0291575B1 (en) 1992-09-30

Family

ID=6327947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117878A Expired - Lifetime EP0291575B1 (en) 1987-05-20 1987-12-03 Horizontal deflection transformer

Country Status (4)

Country Link
EP (1) EP0291575B1 (en)
AT (1) ATE81243T1 (en)
DE (2) DE3716893A1 (en)
ES (1) ES2035021T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2756967A1 (en) * 1996-12-09 1998-06-12 Thomson Television Components TRANSFORMER FOR HIGH-CUT FREQUENCY POWER SUPPLY
DE19728875A1 (en) * 1997-07-07 1999-01-14 Thomson Brandt Gmbh High voltage transformer
EP0953995A1 (en) * 1998-04-30 1999-11-03 Robert Bosch Gmbh Ignition coil with rod-shaped core

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004032373B4 (en) * 2004-06-30 2018-05-24 Seg Automotive Germany Gmbh Electromagnetic auxiliary drive and device for displacing a drive element with such an electromagnetic auxiliary drive

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261950B (en) * 1963-03-30 1968-02-29 Siemens Ag Transformer for a frequency divider circuit
DE1563204A1 (en) * 1966-10-12 1969-09-11 Haddon Transformers Ltd transformer
EP0071008A1 (en) * 1981-07-25 1983-02-09 TELEFUNKEN Fernseh und Rundfunk GmbH Line transformer, in particular a transformer for a television receiver
EP0189213A2 (en) * 1985-01-25 1986-07-30 Nokia Graetz Gesellschaft mit beschränkter Haftung Diode-split flyback transformer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261950B (en) * 1963-03-30 1968-02-29 Siemens Ag Transformer for a frequency divider circuit
DE1563204A1 (en) * 1966-10-12 1969-09-11 Haddon Transformers Ltd transformer
EP0071008A1 (en) * 1981-07-25 1983-02-09 TELEFUNKEN Fernseh und Rundfunk GmbH Line transformer, in particular a transformer for a television receiver
EP0189213A2 (en) * 1985-01-25 1986-07-30 Nokia Graetz Gesellschaft mit beschränkter Haftung Diode-split flyback transformer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2756967A1 (en) * 1996-12-09 1998-06-12 Thomson Television Components TRANSFORMER FOR HIGH-CUT FREQUENCY POWER SUPPLY
EP0848396A1 (en) * 1996-12-09 1998-06-17 Thomson Television Components France Transformer for switched-mode power supply
US5982263A (en) * 1996-12-09 1999-11-09 Thomson Television Components France Higher frequency switch mode transformer
DE19728875A1 (en) * 1997-07-07 1999-01-14 Thomson Brandt Gmbh High voltage transformer
EP0953995A1 (en) * 1998-04-30 1999-11-03 Robert Bosch Gmbh Ignition coil with rod-shaped core

Also Published As

Publication number Publication date
EP0291575B1 (en) 1992-09-30
DE3716893A1 (en) 1988-12-15
DE3782049D1 (en) 1992-11-05
ATE81243T1 (en) 1992-10-15
EP0291575A3 (en) 1989-06-07
ES2035021T3 (en) 1993-04-16

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