EP0096807B1 - Electrical transformer - Google Patents

Electrical transformer Download PDF

Info

Publication number
EP0096807B1
EP0096807B1 EP83105461A EP83105461A EP0096807B1 EP 0096807 B1 EP0096807 B1 EP 0096807B1 EP 83105461 A EP83105461 A EP 83105461A EP 83105461 A EP83105461 A EP 83105461A EP 0096807 B1 EP0096807 B1 EP 0096807B1
Authority
EP
European Patent Office
Prior art keywords
core
winding
carrier
section
flange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83105461A
Other languages
German (de)
French (fr)
Other versions
EP0096807A2 (en
EP0096807A3 (en
Inventor
Herrmann Dipl.-Ing. Hubert
Anton Kvoch
Ernst Paulik
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT83105461T priority Critical patent/ATE22502T1/en
Publication of EP0096807A2 publication Critical patent/EP0096807A2/en
Publication of EP0096807A3 publication Critical patent/EP0096807A3/en
Application granted granted Critical
Publication of EP0096807B1 publication Critical patent/EP0096807B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type

Definitions

  • the invention relates to an electrical transformer with a magnetizable core, in particular ferrite core, and with at least two cylindrical insulating material winding carriers of different cross-section pushed onto the core and possibly divided into winding chambers, which are plugged into one another and are galvanically separated and wound with the primary and secondary windings.
  • a transformer of this type shows e.g. the FR-A-2457000. This is a high-voltage transformer with U-cores and with two connections on separate sides for the primary and secondary windings, which are cast into a cup to achieve high-voltage strength.
  • GB-A-2039156 also includes a high-voltage transformer, which largely corresponds to the high-voltage transformer according to FR-A-2457000.
  • the problem with this high-voltage transformer is the way in which the connections are led out, which are all on one side, but essei; the pins are at an extremely large, space-consuming distance from each other - fear of voltage flashovers.
  • ferrite material or metal alloy is advantageously used as the material for the core in the above-mentioned transformer for magnetic and economic reasons, it being possible for these two materials to overlap in the area of application.
  • the transformer is of particular importance in that it has the above-mentioned galvanic isolation of primary and secondary windings by inductive coupling, an adjustment of the output resistance of the voltage source to the input resistance of the load is achieved by correct choice of the number of turns, and at the same time voltage and current translations good efficiency can be achieved.
  • the electrical insulation and the primary and secondary windings from one another and the electrical isolation between the primary and secondary windings must be accomplished by the complex and, in particular, time-consuming insertion of insulating foils between the individual windings.
  • the windings on both ends of the winding carriers must be moved, which results in unused winding space.
  • the present invention is based on the object of designing a transformer of the type mentioned at the outset, which can be wound fully automatically by means of an insulating film without the winding insulation and electrical isolation required hitherto and nevertheless complies with VDE regulation 0860.
  • the transformer should have the possibility of variable nesting of the windings; i.e. offer the possibility of using a winding technique that varies from case to case, since this is the only way to achieve optimal coupling and low leakage inductance.
  • the invention proposes an electrical transformer of the type mentioned, in which, according to the invention, the winding carrier of the smallest cross-section has an integrally formed carrier flange with contact pin connection strips for the primary and secondary windings arranged on opposite sides of the carrier flange, as a magnetizable core E-core halves are provided, one E-core half of which engages with its outer legs through openings in the carrier flange and the middle slugs of the two E-core halves are immersed in the enveloped space of the winding carrier of the smallest cross-section.
  • the winding carriers which preferably have an annular cross section, can each be divided into winding chambers, the number and chamber height of which are selected to match the desired nesting of the windings.
  • the potential separation of the primary and secondary windings and the electrical insulation of the individual windings from one another is thus ensured by the thickness of the winding support wall or by the height and thickness of the chamber partition walls.
  • Ring flanges are preferably formed on the end faces of the winding carrier facing away from the carrier flange, such that the flange outer diameter of the winding carrier of smaller cross-section corresponds approximately to the inside diameter of the next following winding carrier of larger cross-section.
  • the height and thickness of the winding carrier flanges and the spatially separate connection of the primary and secondary windings to the contact pins of the opposite contact terminal strips also ensure that the necessary creepage distance is maintained.
  • the optional change in the number and height of the chambers of the individual winding carriers also enables an optimal adaptation of the coupling to the individual application.
  • the fully automatic winding can be carried out without any problems.
  • a further simplified automatic winding is possible if the winding carriers attached to the winding carrier with the smallest cross section are also in several parts.
  • the invention is explained in more detail below using an exemplary embodiment.
  • the single figure shows a winding carrier equipped with a carrier flange and its associated E-core halves in a partially exploded, perspective and partly broken view. For better illustration, the illustration of the windings has been omitted in the figure.
  • a support flange 11 is integrally formed or attached to the front end of the winding support 9 facing away from the flange 17 and has contact terminal strips 12, 13 for contact pins 14 which are separated into individual elements.
  • the partition wall 24 and the carrier flange 11 are provided with open-edge recesses 26, which are used for the positionally secure supply of the winding ends 25 to the contact pins 14.
  • the carrier flange 11 has openings 15 in its area lying between the contact connection parts 12, 13; 16 through which an E core half 2 is guided with its outer legs 6, 7.
  • This and the second E-core half 1 dip in the assembled state with their central slugs 8 and 4, respectively, into the interior of the winding support enclosed by the winding support 9, so that the mutually facing end faces of the legs 3, 6 and 5, 7 lie one on top of the other and the end faces the central slugs 4, 8 are spaced apart to form an air gap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulated Conductors (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Led Devices (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Details Of Television Scanning (AREA)
  • Organic Insulating Materials (AREA)

Abstract

1. An electrical transformer comprising a magnetizable core, in particular a ferrite core, and at least two cylindrical winding carriers (9, 10) made of insulating material and of different cross-section, which are slipped on to the core and possibly divided, into winding chambers, and on to which the primary and secondary windings are wound so as to be fitted in one another and electrically separated, characterized in that at its one end face, the winding carrier (9) of the smallest cross-section has an integral carrier flange (11) which has contact pin connection strips (12, 13) arranged on opposite sides of the carrier flange and which serve for the primary and secondary windings ; that as a magnetizable core, E-core halves (1, 2) are provided, one E-core half (2) of which passes through openings (15, 16) in the carrier flange (11) at its outer flanks (6, 7) ; and that the central core parts (4, 8) of the two E-core halves extend into the enclosed space of the winding carrier (9) of the smallest cross-section.

Description

Die Erfindung betrifft einen elektrischen Übertrager mit einem magnetisierbaren Kern, insbesondere Ferritkern, und mit mindestens zwei auf den Kern aufgeschobenen, gegebenenfalls in Wickelkammern aufgeteilten zylindrischen lsolierstoff-Wickeltragem unterschiedlichen Querschnitts, die ineinander gesteckt und galvanisch getrennt mit den Primär- bzw. Sekundärwicklungen bewickelt sind.The invention relates to an electrical transformer with a magnetizable core, in particular ferrite core, and with at least two cylindrical insulating material winding carriers of different cross-section pushed onto the core and possibly divided into winding chambers, which are plugged into one another and are galvanically separated and wound with the primary and secondary windings.

Einen Übertrager dieser Art zeigt z.B. die FR-A-2457000. Hierbei handelt es sich um einen Hochspannung-Trafo mit U-Kernen und mit zwei auf getrennten Seiten herausgeführten Anschlüssen für die Primär- und Sekundärwicklungen, die zu dem zur Erzielung der Hochspannungsfestigkeit in einen Becher eingegossen sind.A transformer of this type shows e.g. the FR-A-2457000. This is a high-voltage transformer with U-cores and with two connections on separate sides for the primary and secondary windings, which are cast into a cup to achieve high-voltage strength.

Auch die GB-A-2039156 beinhaltet einen Hochspannungstrafo, der in wesentlichen Teilen mit dem Hochspannungs-Trafo nach der FR-A-2457000 übereinstimmt.GB-A-2039156 also includes a high-voltage transformer, which largely corresponds to the high-voltage transformer according to FR-A-2457000.

Hinsichtlich der Spannungsfestigkeit problematisch ist bei diesem Hochspannungs- Trafo die Art der Herausführung der Anschlüsse, die zwar sämtlich auf einer Seite liegen, jedoch essei denn; die Stifte befinden sich in einem äußerst großen, platzraubenden Abstand voneinander - Spannungsüberschläge befürchten lassen.With regard to the dielectric strength, the problem with this high-voltage transformer is the way in which the connections are led out, which are all on one side, but essei; the pins are at an extremely large, space-consuming distance from each other - fear of voltage flashovers.

Auch ist die exakte koaxiale Ausrichtung der Spulenkörper dieses Trafos zueinander nicht gewährleistet, da der eine der beiden Spulenkörper nur im Sockelbereich auf den anderen Spulenkörper leicht aufgesteckt ist und daher die Gefahr besteht, daß der aufgesteckte Spulenkörper zum anderen Spulenkörper gekippt bzw. im Winkel zu dessen Längsmittelachse aufgesteckt wird. Die Einhaltung der erforderlichen Isolationsabstände ist damit nicht gewährleistet.Also, the exact coaxial alignment of the bobbins of this transformer to one another is not guaranteed, since one of the two bobbins is only slightly plugged onto the other bobbin in the base area and there is therefore a risk that the plugged bobbin will tilt or at an angle to the other bobbin Longitudinal central axis is plugged on. This does not guarantee compliance with the required insulation distances.

Je nach Frequenzgebiet wird bei dem eingangs genannten Übertrager aus magnetischen und wirtschaftlichen Gründen vorteilhafterweise Ferritmaterial oder Metallegierung als Werkstoff für den Kern eingesetzt, wobei sich diese beiden Werkstoffe im Anwendungsbereich überlappen können. Eine besondere Bedeutung kommt dem Übertrager dadurch zu, daß er durch induktive Kopplung die vorstehend erwähnte galvanische Trennung von Primär- und Sekundärwicklungen aufweist, durch richtige Wahl des Windungszahlverhältnisses eine Anpassung des Ausgangswiderstandes der Spannungsquelle zum Eingangswiderstand der Last erreicht wird und gleichzeitig Spannungs- und Stromübersetzungen bei gutem Wirkungsgrad erzielt werden.Depending on the frequency range, ferrite material or metal alloy is advantageously used as the material for the core in the above-mentioned transformer for magnetic and economic reasons, it being possible for these two materials to overlap in the area of application. The transformer is of particular importance in that it has the above-mentioned galvanic isolation of primary and secondary windings by inductive coupling, an adjustment of the output resistance of the voltage source to the input resistance of the load is achieved by correct choice of the number of turns, and at the same time voltage and current translations good efficiency can be achieved.

Bei der Fertigung der bisher bekannten elektrischen Übertrager vorstehender Art muß die elektrische Isolierung und der Primär- und Sekundärwicklung gegeneinander und die Potentialtrennung zwischen den Primär- und Sekundärwicklungen durch das aufwendige und insbesondere zeitraubende Einlegen von Isolierfolien zwischen die einzelnen Wicklungen bewerkstelligt werden. Zusätzlich müssen, um den Forderungen des VDE hinsichtlich ausreichender Kriechstrecken zwischen den Primär- und Sekundärwicklungen zu genügen, die Wicklungen an beiden Stirnenden der Wickelträger hingerückt werden was ungenutzten Wickelraum zur Folge hat.In the manufacture of the previously known electrical transformers of the above type, the electrical insulation and the primary and secondary windings from one another and the electrical isolation between the primary and secondary windings must be accomplished by the complex and, in particular, time-consuming insertion of insulating foils between the individual windings. In addition, in order to meet the requirements of the VDE regarding sufficient creepage distances between the primary and secondary windings, the windings on both ends of the winding carriers must be moved, which results in unused winding space.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Übertrager der eingangs genannten Art zu gestalten, der ohne die bisher erforderliche Wicklungsisolation und Potentialtrennung mittels Isolierfolie vollautomatisch bewickelbar ist und trotzdem der VDE-Bestimmung 0860 entspricht. Darüberhinaus soll der Übertrager die Möglichkeit variabler Verschachtelung der Wicklungen; d.h. die Möglichkeit der Anwendung einer von Fall zu Fall variierenden Wickeltechnik bieten, da nur so eine letztlich optimale Verkopplung und niedrige Streuinduktivität erhalten werden.The present invention is based on the object of designing a transformer of the type mentioned at the outset, which can be wound fully automatically by means of an insulating film without the winding insulation and electrical isolation required hitherto and nevertheless complies with VDE regulation 0860. In addition, the transformer should have the possibility of variable nesting of the windings; i.e. offer the possibility of using a winding technique that varies from case to case, since this is the only way to achieve optimal coupling and low leakage inductance.

Zur Lösung dieser Aufgabe schlägt die Erfindung einen elektrischen Übertrager der eingangs genannten Art vor, bei dem erfindungsgemäß der Wickelträger kleinsten Querschnitts an seinem einem Stirnende einen einstückig angeformten Trägerflansch mit auf gegenüberliegenden Seiten des Trägerflansches angeordneten Kontaktstiftanschlußleisten für die Primär- und Sekundärwicklungen aufweist, als magnetisierbarer Kern E-Kernhälften vorgesehen sind, deren eine E-Kernhälfte mit ihren äußeren Schenkeln durch Durchbrechungen im Trägerflansch greift und die Mittelbutzen der beiden E-Kernhälften in den umhüllten Raum des Wickelträgers kleinsten Querschnitts eintauchen.To achieve this object, the invention proposes an electrical transformer of the type mentioned, in which, according to the invention, the winding carrier of the smallest cross-section has an integrally formed carrier flange with contact pin connection strips for the primary and secondary windings arranged on opposite sides of the carrier flange, as a magnetizable core E-core halves are provided, one E-core half of which engages with its outer legs through openings in the carrier flange and the middle slugs of the two E-core halves are immersed in the enveloped space of the winding carrier of the smallest cross-section.

Die Wickelträger, die vorzugsweise kreisringförmigen Querschnitt aufweisen, können dabei jeweils in Wickelkammern aufgeteilt sein, deren Anzahl und Kammerhöhe in Anpassung an die gewünschte Verschachtelung der Wicklungen gewählt ist. Die Potentialtrennung der Primär- und Sekundärwicklungen und die elektrische Isolation der einzelnen Wicklungen gegeneinander ist so durch die Dicke der Wickelträger-Wandung bzw. durch die Höhe und Dicke der Kammertrennwände gewährleistet.The winding carriers, which preferably have an annular cross section, can each be divided into winding chambers, the number and chamber height of which are selected to match the desired nesting of the windings. The potential separation of the primary and secondary windings and the electrical insulation of the individual windings from one another is thus ensured by the thickness of the winding support wall or by the height and thickness of the chamber partition walls.

An die vom Trägerflansch abgekehrten Stirnseiten der Wickelträger sind dabei vorzugsweise Ringflansche angeformt, derart, daß jeweils der Flanschaußendurchmesser des Wickelträgers kleineren Querschnitts etwa dem Innendruchmesser des nächstfolgenden Wickelträgers größeren Querschnitts entspricht. Durch die Höhe und Dicke der Wickelträger-Flansche und durch den räumlich getrennten Anschluß der Primär- und Sekundärwicklungen an die Kontaktstifte der jeweils gegenüberliegenden Kontaktanschlußleisten, ist auch die Einhaltung der notwendigen Kriechstrecke gewährleistet. Die wahlweise Änderung der Anzahl und Höhe der Kammern der einzelnen Wickelträger ermöglicht darüberhinaus eine optimale Anpassung der Verkopplung an den einzelnen Anwendungsfall.Ring flanges are preferably formed on the end faces of the winding carrier facing away from the carrier flange, such that the flange outer diameter of the winding carrier of smaller cross-section corresponds approximately to the inside diameter of the next following winding carrier of larger cross-section. The height and thickness of the winding carrier flanges and the spatially separate connection of the primary and secondary windings to the contact pins of the opposite contact terminal strips also ensure that the necessary creepage distance is maintained. The optional change in the number and height of the chambers of the individual winding carriers also enables an optimal adaptation of the coupling to the individual application.

Durch die Aufteilung des Wickelträgers in mehrere Wickelträger ist die vollautomatische Bewicklung problemlos durchführbar. Eine weiter-vereinfachte automatische Bewicklung ist möglich, wenn auch die auf den Wickelträger kleinsten Querschnitts aufgesteckten Wickelträger zusätzlich mehrteilig sind.Due to the division of the winding carrier into several winding carriers, the fully automatic winding can be carried out without any problems. A further simplified automatic winding is possible if the winding carriers attached to the winding carrier with the smallest cross section are also in several parts.

Die Erfindung wird nachstehend anhand eines Ausführungsbeispieles näher erläutert. Die einzige Figur zeigt dabei einen mit einem Trägerflansch ausgerüsteten Wickelträger und seine zugehörigen E-Kernhälften in teilweise auseinandergezogener, perspektivischer und teils gebrochener Ansicht. Zur besseren Veranschaulichung wurde in der Figur auf die Darstellung der Wicklungen verzichtet.The invention is explained in more detail below using an exemplary embodiment. The single figure shows a winding carrier equipped with a carrier flange and its associated E-core halves in a partially exploded, perspective and partly broken view. For better illustration, the illustration of the windings has been omitted in the figure.

Mit 9, 10 sind ineinandergesteckte zylindrische Wickelträger kreisringförmigen Querschnitts bezeichnet, die Flansche 17,20 aufweisen und durch Trennwände 18, 19 bzw. 21, 22, 23, 24 in Kammern aufgeteilt sind. An das vom Flansch 17 abgekehrte Stirnende des Wickelträgers 9 ist ein Trägerflansch 11 einstückig angeformt oder aufgesteckt, der in Einzelelemente aufgetrennte Kontaktanschlußleisten 12, 13 für Kontaktstifte 14 besitzt. Im gezeigten Ausführungsbeispiel ist die Trennwand 24 und der Trägerflansch 11 mit randoffenen Ausnehmungen 26 ausgestattet, die zur lagegesicherten Zuführung der Wickelenden 25 zu den Kontaktstiften 14 dienen.9, 10 are nested cylindrical winding carriers of circular cross-section, which have flanges 17, 20 and are divided into chambers by partitions 18, 19 and 21, 22, 23, 24. A support flange 11 is integrally formed or attached to the front end of the winding support 9 facing away from the flange 17 and has contact terminal strips 12, 13 for contact pins 14 which are separated into individual elements. In the exemplary embodiment shown, the partition wall 24 and the carrier flange 11 are provided with open-edge recesses 26, which are used for the positionally secure supply of the winding ends 25 to the contact pins 14.

Der Trägerflansch 11 besitzt in seinem zwischen den Kontaktanschlußteilen 12, 13 liegenden Bereich Durchbrechungen 15; 16 durch welche eine E-Kernhälfte 2 mit ihren äußeren Schenkeln 6, 7 geführt ist. Diese und die zweite E-Kernhälfte 1 tauchen im montierten Zustand mit ihren Mittelbutzen 8 bzw. 4 in das vom Wickelträger 9 umschlossene Innere des Wickelträgers ein, so daß die einander zugekehrten Stirnflächen der Schenkel 3, 6 bzw. 5, 7 aufeinanderliegen und die Stirnflächen der Mittelbutzen 4, 8 unter Bildung eines Luftspalts zueinander beabstandet sind.The carrier flange 11 has openings 15 in its area lying between the contact connection parts 12, 13; 16 through which an E core half 2 is guided with its outer legs 6, 7. This and the second E-core half 1 dip in the assembled state with their central slugs 8 and 4, respectively, into the interior of the winding support enclosed by the winding support 9, so that the mutually facing end faces of the legs 3, 6 and 5, 7 lie one on top of the other and the end faces the central slugs 4, 8 are spaced apart to form an air gap.

Claims (3)

1. An electrical transformer comprising a magnetizable core, in particular a ferrite core, and at least two cylindrical winding carriers (9, 10) made of insulating material and of different cross-section, which are slipped on to the core and possibly divided, into winding chambers, and on to which the primary and secondary windings are wound so as to be fitted in one another and electrically separated, characterised in that at its one end face, the winding carrier (9) of the smallest cross-section has an integral carrier flange (11) which has contact pin connection strips (12,13) arranged on opposite sides of the carrier flange and which serve for the primary and secondary windings; that as a magnetizable core, E-core halves (1, 2) are provided, one E-core half (2) of which passes through openings (15, 16) in the carrier flange (11) at its outer flanks (6, 7); and that the central core parts (4, 8) of the two E-core halves extend into the enclosed space of the winding carrier (9) of the smallest cross-section.
2. An electrical transformer as claimed in Claim 1, characterised in that annular flanges (17, 20) are preferably formed on the end faces of the winding carriers (9, 10) which face away from the carrier flange (11), in such manner that the outer diameter of the flange of the winding carrier (9) which has the smaller cross-section approximately corresponds to the inner diameter of the next winding carrier (10) having the larger cross-section.
3. An electrical transformer as claimed in Claim 1 and 2, characterised in that the winding carriers (10) placed on to the winding carrier (9) of the smallest cross-section are of multi-part form.
EP83105461A 1982-06-11 1983-06-01 Electrical transformer Expired EP0096807B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83105461T ATE22502T1 (en) 1982-06-11 1983-06-01 ELECTRICAL TRANSMITTER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823222027 DE3222027A1 (en) 1982-06-11 1982-06-11 ELECTRIC TRANSMITTER
DE3222027 1982-06-11

Publications (3)

Publication Number Publication Date
EP0096807A2 EP0096807A2 (en) 1983-12-28
EP0096807A3 EP0096807A3 (en) 1984-05-02
EP0096807B1 true EP0096807B1 (en) 1986-09-24

Family

ID=6165845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105461A Expired EP0096807B1 (en) 1982-06-11 1983-06-01 Electrical transformer

Country Status (5)

Country Link
EP (1) EP0096807B1 (en)
AT (1) ATE22502T1 (en)
DE (2) DE3222027A1 (en)
ES (1) ES281210Y (en)
FI (1) FI74164C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3620306A1 (en) * 1986-06-18 1987-12-23 Siemens Ag Electrical multi-chamber coil former

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8401185A (en) * 1984-04-13 1985-11-01 Philips Nv TRANSFORMER WITH COAXIAL COILS.
JPS63501610A (en) * 1985-10-31 1988-06-16 ザ・サウス・イ−スト・クイ−ンズランド・エレクトリシティ・ボ−ド intermediate trip device
AU599056B2 (en) * 1985-10-31 1990-07-12 South East Queensland Electricity Corporation Intertripping system
JPH01154488A (en) * 1987-12-09 1989-06-16 Toshiba Corp Stepup transformer for microwave oven
DE4120771A1 (en) * 1991-06-24 1993-01-07 Philips Patentverwaltung TRANSFORMER WITH A SPOOL BODY MADE OF PLASTIC
DE10106173C1 (en) * 2001-02-10 2002-04-18 Bosch Gmbh Robert Arrangement for transferring energy/data between vehicle body and removable part has first core half with pin protruding into second core half, ring with spring pressing it against second half
DE102008017314B4 (en) * 2008-04-04 2015-10-29 SUMIDA Components & Modules GmbH Inductive component and electronic circuit for controlling a luminaire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR617370A (en) * 1925-06-12 1927-02-18 Thomson Houston Comp Francaise Improvements made to electrical transformers
JPS6023591B2 (en) * 1978-04-24 1985-06-08 株式会社日立製作所 flyback transformer
JPS5574111A (en) * 1978-11-29 1980-06-04 Hitachi Ltd Transformer
JPS55151307A (en) * 1979-05-14 1980-11-25 Victor Co Of Japan Ltd Closed magnetic circuit device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3620306A1 (en) * 1986-06-18 1987-12-23 Siemens Ag Electrical multi-chamber coil former

Also Published As

Publication number Publication date
DE3366418D1 (en) 1986-10-30
EP0096807A2 (en) 1983-12-28
DE3222027A1 (en) 1983-12-15
FI74164C (en) 1987-12-10
FI832107A0 (en) 1983-06-10
ES281210Y (en) 1985-10-16
ES281210U (en) 1985-03-01
ATE22502T1 (en) 1986-10-15
EP0096807A3 (en) 1984-05-02
FI832107L (en) 1983-12-12
FI74164B (en) 1987-08-31

Similar Documents

Publication Publication Date Title
DE4241689C2 (en) Step-up (high voltage) transformer
DE2233571C3 (en) Bobbins, in particular for transformers
EP0112482B1 (en) Coiling device for dry-type transformers
EP0293617B1 (en) High-frequency power transmitter
DE69004112T2 (en) Arrangement for the high voltage supply of an X-ray tube.
WO1993018528A1 (en) Coil for high-voltage transformer
DE2651218A1 (en) IGNITION COIL FOR IGNITION DEVICES IN COMBUSTION MACHINERY
EP0215286A1 (en) High power pulse transformer for short high-voltage and/or high-current pulses
EP0096807B1 (en) Electrical transformer
EP0585597B1 (en) High voltage line transformer for a TV receiver
DE2848832A1 (en) LINE DEFLECTION TRANSFORMER
EP2248139B1 (en) Choke arrangement with a first and a second partial coil comprising a partial winding
DE3433700C2 (en)
DE102004008961B4 (en) Coil body for closed magnetic core, has guiding units arranged outside supporting surface, winding space defined between units and under windings, and separating units designed as flat ledges
DE723131C (en) High voltage dry transformer, especially voltage transducer
EP0601225A1 (en) Transformer for the transfer of high electrical power at high frequency
DE3636938C2 (en)
DE3050393C2 (en) Pulse transformer for pulse excitation
EP0216249B1 (en) High-tension winding consisting of axially superposed disc coil pairs
DE910451C (en) Transformers that can be connected to high voltage with two poles, especially dry voltage converters
DE4320714A1 (en) Diode split high-voltage transformer
DE949583C (en) Deflection system for the electromagnetic deflection of electron beams
DE2438042C3 (en) Device for holding bobbins
DE2653591A1 (en) HIGH PERFORMANCE TRANSFORMER FOR ULTRA HIGH VOLTAGE
DE3913558A1 (en) Transformer with ferrite windings - has core with primary and secondary coils arranged on common sections in alternate manner

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT DE FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT DE FR GB

17P Request for examination filed

Effective date: 19840809

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB

REF Corresponds to:

Ref document number: 22502

Country of ref document: AT

Date of ref document: 19861015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3366418

Country of ref document: DE

Date of ref document: 19861030

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020517

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20020520

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020529

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020620

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20030531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20030601

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20