EP0750785B1 - Planartransformator für schaltnetzteile zur erzeugung von kleinspannungen und verfahren zu dessen herstellung - Google Patents
Planartransformator für schaltnetzteile zur erzeugung von kleinspannungen und verfahren zu dessen herstellung Download PDFInfo
- Publication number
- EP0750785B1 EP0750785B1 EP95934132A EP95934132A EP0750785B1 EP 0750785 B1 EP0750785 B1 EP 0750785B1 EP 95934132 A EP95934132 A EP 95934132A EP 95934132 A EP95934132 A EP 95934132A EP 0750785 B1 EP0750785 B1 EP 0750785B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plastic
- windings
- planar transformer
- plastic film
- coils
- 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 - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000002985 plastic film Substances 0.000 claims abstract description 29
- 239000004033 plastic Substances 0.000 claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims abstract description 24
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 10
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007765 extrusion coating Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 4
- 229920006255 plastic film Polymers 0.000 abstract description 21
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 229920002994 synthetic fiber Polymers 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 1
- 210000002414 leg Anatomy 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- QFLWZFQWSBQYPS-AWRAUJHKSA-N (3S)-3-[[(2S)-2-[[(2S)-2-[5-[(3aS,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoylamino]-3-methylbutanoyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-4-[1-bis(4-chlorophenoxy)phosphorylbutylamino]-4-oxobutanoic acid Chemical compound CCCC(NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@@H](NC(=O)CCCCC1SC[C@@H]2NC(=O)N[C@H]12)C(C)C)P(=O)(Oc1ccc(Cl)cc1)Oc1ccc(Cl)cc1 QFLWZFQWSBQYPS-AWRAUJHKSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- GLGNXYJARSMNGJ-VKTIVEEGSA-N (1s,2s,3r,4r)-3-[[5-chloro-2-[(1-ethyl-6-methoxy-2-oxo-4,5-dihydro-3h-1-benzazepin-7-yl)amino]pyrimidin-4-yl]amino]bicyclo[2.2.1]hept-5-ene-2-carboxamide Chemical compound CCN1C(=O)CCCC2=C(OC)C(NC=3N=C(C(=CN=3)Cl)N[C@H]3[C@H]([C@@]4([H])C[C@@]3(C=C4)[H])C(N)=O)=CC=C21 GLGNXYJARSMNGJ-VKTIVEEGSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000000728 ammonium alginate Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229940125758 compound 15 Drugs 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- 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
- H01F27/2804—Printed windings
-
- 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
- H01F27/2804—Printed windings
- H01F2027/2809—Printed windings on stacked layers
-
- 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
- H01F27/2804—Printed windings
- H01F2027/2819—Planar transformers with printed windings, e.g. surrounded by two cores and to be mounted on printed circuit
Definitions
- the invention relates to a planar transformer for Switching power supplies for generating low voltages, consisting of two or more, with spirally printed Carrier plates provided with primary or secondary windings made of plastic, the interposition of an electrical insulating layer sandwiched and with a Magnetic core are provided with a middle leg protrudes through a central opening of the carrier plates, wherein each carrier plate has a printed one on both surfaces Has winding, the winding ends by means of a Vias are electrically connected in series. Furthermore, the invention is concerned with methods of manufacture such a carrier plate for the manufacture of a Planar transformers.
- a planar transformer corresponding to the preamble of claim 1 is from Patent Abstracts of Japan: Vol.10, N ° 129 (E-403) & JP-A-60258911 known.
- Planar transformers this type are usually with about 0.25 mm thick carrier plates made of plastic, whereby for through-plating a perforation of the winding ends in the carrier plate and in it a mostly sleeve-shaped, by electroplating formed contact element is arranged.
- Similar sleeve-shaped Contact elements are also used for through-plating of two or more carrier plates connected in series used. To ensure adequate protection against breakdowns the printed windings a certain minimum distance to have.
- the perforation for the via the because of the spiral guidance of the windings on the edge of The carrier plate lies at a minimum distance for reasons of strength be arranged from the edge of the support plate, the must at least correspond to the hole diameter.
- These measures disadvantageously cause enlarged ones Dimensions of the planar transformer.
- the via is also through very complex.
- Another disadvantage is also in that the known planar transformers because of the necessary electrical isolation between the primary and secondary circuits as well as due to the necessary air and Creepage distances of the windings to the magnetic core only for services over 60 W are suitable.
- an induction coil is also known in the case of a band-shaped plastic film on both sides Turns are printed, two opposite Spirals with their inner ends through a small one Opening in the insulating material should be in contact with each other.
- the ribbon is folded zigzag, using the spirals for insulation covered by a layer of lacquer or between them Insulating plates are inserted.
- DD-PS 205 578 describes a isolating transformer, on the one with Conductor layer provided surfaces one winding each the sealing layer technique is applied; the entire winding arrangement is with a highly insulating synthetic resin coating overdrawn.
- the invention is based on the object Electrical isolation between the primary and secondary circuits to improve the planar transformer for To make power below 60 W accessible and its production to simplify.
- the task is performed by the in the characterizing part of claim 1 specified features solved.
- the use of a particularly thin plastic film as The carrier plate initially has the advantage of being significantly smaller Thickness, causing a substantial reduction in Dimensions of the planar transformer is reached. Farther allows the extremely small thickness of the plastic film a much easier via on mechanical Ways.
- the two bare winding ends are in Connection with a plastic encapsulation in the area of a Cutout pressed tightly together to achieve the desired To achieve series connection of the two windings.
- the cutout and the via can be essential be placed closer to the edge. Due to the extrusion coating finally created insulation that is more integrated Part of the carrier plate provided with the windings or plastic film, so that when stacking the carrier plates no special insulating foils interposed need to be. This also increases the dielectric strength and electrical isolation improved so that the planar transformer depending on the switching frequency also suitable for smaller powers of around 10 W and below is.
- the carrier plate built into the planar transformer leaves produce themselves in a particularly simple manner in that the spiral windings on the two faces of one about 10 to 100 microns thick film printed from the plastic be, with the winding ends bare above a Cutout in the plastic film and come to rest plastic film provided with the windings under high Printing with an electrically insulating thermoplastic Plastic compound is overmolded such that the two Winding ends firmly against each other in the area of the cutout be pressed.
- the plastic mass is useful with molded at a pressure greater than 50,000 hPa and in one applied such an amount that the coating is less than Is 0.2 mm thick.
- a special one for the production of a planar transformer Suitable method provides that the electrically insulating plastic compound overmolded plastic films stacked, equipped with the magnetic core and the components of the Unit by overmolding with another electrically insulating thermoplastic plastic mass mechanically be fixed.
- the planar transformer 1 shown in Fig. 1 is essentially of three, consisting of thin plastic films Carrier plates 2 assembled, each on their two Surfaces with a spiral-like printed conductor track Winding 3 and provided with lugs 4 are and their training described in more detail below is.
- a two-part magnetic core 5 is provided which is designed as a jacket core.
- the upper part of the magnetic core 5 has, as shown in FIG. 2, two side legs 6, a middle leg 7 and a lower yoke 8.
- the carrier plates 2 are provided with a central opening 9, through which the middle leg 7 of the magnetic core 5 protrudes.
- a cutout 10 is provided for the through-plating the winding ends 3c, 3d serves.
- the carrier plates 2 with an insulating plastic compound 11.
- the windings 3 of the three carrier plates 2 are switched so that they have the primary or secondary windings form the planar transformer 1.
- the carrier plates 2 consisting of a very thin flexible Plastic film 12 made of a temperature-resistant Plastic such as polyamide or the like.
- the film thickness is in Depending on the intended power between about 10 and 100 ⁇ m.
- the plastic film 12 is on both surfaces with a spiral, conductor track-like winding 3 printed from copper or the like.
- the thickness of the copper coating varies between a few micrometers depending on the application and 200 microns, preferably between 20 and 200 microns. In Fig.
- the upper winding is 3a and the lower winding 3b identified, the winding ends 3c and 3d blank Arranged above the cutout 10 in the plastic film 12 and electrically conductive by means of an overmolded plastic compound 11 are pressed against each other, so that the upper and lower Windings 3a, 3b are connected in series.
- Plastic compound 11 is an electrically insulating thermoplastic suitable.
- the thickness of the molded plastic mass 10 should be less than 0.2 mm.
- the encapsulation of the Plastic mass 11 happens under such a high pressure that the winding ends 3c, 3d firmly against each other in the cutout be pressed.
- the injection molding with a pressure of 50,000 hPa.
- a carrier plate 2 is formed, which consists of a Plastic film 12 with plated-through windings 3a, 3b and an insulating coating made of plastic compound 11 consists.
- the carrier plates 2 there are two or more carrier plates 2 stacked and as primary or secondary windings assigned to a planar transformer 1.
- 4 is the Arrangement of three carrier plates 2 illustrated.
- the coating the carrier plates are insulated from plastic mass 11 2 from each other and causes the potential separation.
- the stacked three carrier plates 2 provided with the magnetic core 5.
- the assembled unit can be insulated thermoplastic compound are overmolded.
- planar transformers 1 shown in connection with a film-like plastic film 12, that by means of an edge perforation 13a by several Processing stations I to VIII is transported.
- Station I the plastic film 12 with openings 9 and cutouts 14 for performing the side legs 6 and the middle leg 7 of the magnetic core 5 and with the cutout 10 for through-contacting the winding ends Mistake.
- Stations II and III are used to print on Plastic film 12 with the two windings 3a, 3b.
- On station IV is the plastic film 12 with the printed Injection molded 3a, 3b with the plastic mass 11, wherein the winding ends 3c, 3d pressed against each other in a current-carrying manner will.
- Station V involves stacking two or more carrier plates 2.
- the magnetic cores 5 are installed the assembly unit is in station VI and in station VII encapsulated with an insulating plastic compound 15.
- the planar transformers 1 are on of station VIII isolated. This procedure allows in advantageously a fully automated production that is also continuously executable.
- planar transformers 1 can be produced with two, four or more carrier plates 2.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
- Dc-Dc Converters (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Description
- Fig. 1
- einen Planartransformator in einer perspektivischen Darstellung,
- Fig. 2
- den Gegenstand der Fig. 1 in einer schematisierten Explosionsdarstellung,
- Fig. 3
- einen Teilquerschnitt durch eine Trägerplatte im Bereich der Durchkontaktierung in einer schematisierten Darstellung,
- Fig. 4
- einen Teilquerschnitt durch eine Planartransformator mit drei Trägerplatten in einer schematischen Darstellung und
- Fig. 5
- die Verfahrensschritte bei der Herstellung von Planartransformatoren in Verbindung mit einem Trägerfilm.
- 1
- Planartransformator
- 2
- Trägerplatten
- 3
- Wicklungen
- 3a
- obere Wicklung
- 3b
- untere Wicklung
- 3c
- Wicklungsenden
- 3d
- Wicklungsenden
- 4
- Anschlußfahnen
- 5
- zweiteiliger Magnetkern
- 6
- Seitenschenkel
- 7
- Mittelschenkel
- 8
- Joch
- 9
- Öffnung
- 10
- Ausschnitt
- 11
- Kunststoffmasse
- 12
- Kunststoffolie
- 13
- Perforation
- 14
- Ausschnitte
- 15
- Kunststoffmasse
Claims (7)
- Planartransformator für Schaltnetzteile zur Erzeugung von Kleinspannungen, bestehend aus zwei oder mehreren, mit spiralförmig aufgedruckten Primär- oder Sekundärwicklungen versehenen Trägerplatten aus Kunststoff, die unter Zwischenlage einer elektrisch isolierenden Schicht sandwichartig angeordnet und mit einem Magnetkern versehen sind, der mit einem Mittelschenkel durch eine zentrische Öffnung der Trägerplatten ragt, wobei jede Trägerplatte auf beiden Flächen eine aufgedruckte Wicklung aufweist, deren Wicklungsenden mittels einer Durchkontaktierung elektrisch in Reihe geschaltet sind, dadurch gekennzeichnet, daß die Wicklungen (3a,3b) auf einer 10 bis 100 µm dicken Folie (12) aus dem Kunststoff aufgedruckt sind, jeweils zwei der Wicklungsenden (3c,3d) blank über einem Ausschnitt (10) in der Kunststoffolie (12) angeordnet sind und die mit den beiden Wicklungen (3a,3b) versehene Kunststoffolie (12) mit einer elektrisch isolierenden thermoplastischen Kunststoffmasse (11) umspritzt ist, derart, daß die beiden Wicklungsenden (3c,3d) im Bereich des Ausschnitts (10) fest gegeneinander gepreßt sind.
- Planartransformator nach Anspruch 1, dadurch gekennzeichnet, daß die aus Kupfer bestehenden Wicklungen (3a,3b) eine Dicke zwischen 20 bis 200 µm haben.
- Planartransformator nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Dicke der umspritzten Kunststoffmassen (11) kleiner als 0,2 mm ist.
- Verfahren zur Herstellung einer auf beiden Flächen mit einer gedruckten spiralförmigen Wicklung versehenen, aus Kunststoff bestehenden Trägerplatte zur Bildung von Primär- oder Sekundärwicklung für Planartransformatoren zur Erzeugung von Kleinspannungen, wobei die Wicklungsenden durchkontaktiert werden, dadurch gekennzeichnet, daß die spiralförmigen Wicklungen auf die beiden Flächen einer 10 bis 100 µm dicken Folie (12) aus dem Kunststoff aufgedruckt werden, wobei die Wicklungsenden (3c,3d) blank über einem Ausschnitt (10) in der Kunststoffolie (12) zu liegen kommen und die mit den Wicklungen (3a,3b) versehene Kunststoffolie (12) unter hohem Druck mit einer elektrisch isolierenden thermoplastischen Kunststoffmasse (11) umspritzt wird, derart, daß die beiden Wicklungsenden (3c,3d) im Bereich des Ausschnitts (10) fest gegeneinander gepreßt werden.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Kunststoffmasse (11) mit einem Druck größer als 50.000 hPa umspritzt wird.
- Verfahren nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Kunststoffmasse (11) in einer Dicke kleiner als 0,2 mm aufgetragen wird.
- Verfahren zur Herstellung eines Planartransformators für Schaltnetzteile zur Erzeugung von Kleinspannungen nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß zwei oder mehrere mit der elektrisch isolierenden Kunststoffmasse (11) umspritzten Kunststoffolien (12) gestapelt, mit dem Magnetkern (5) bestückt und die Bauteile der Baueinheit durch Umspritzen mit einer weiteren, elektrisch isolierenden thermoplastischen Kunststoffmasse (15) mechanisch fixiert werden.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19500943A DE19500943C1 (de) | 1995-01-14 | 1995-01-14 | Planartransformator für Schaltnetzteile zur Erzeugung von Kleinspannungen und Verfahren zu dessen Herstellung |
DE19500943 | 1995-01-14 | ||
PCT/EP1995/003924 WO1996021935A1 (de) | 1995-01-14 | 1995-10-04 | Planartransformator für schaltnetzteile zur erzeugung von kleinspannungen und verfahren zu dessen herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0750785A1 EP0750785A1 (de) | 1997-01-02 |
EP0750785B1 true EP0750785B1 (de) | 1998-05-13 |
Family
ID=7751480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95934132A Expired - Lifetime EP0750785B1 (de) | 1995-01-14 | 1995-10-04 | Planartransformator für schaltnetzteile zur erzeugung von kleinspannungen und verfahren zu dessen herstellung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0750785B1 (de) |
AT (1) | ATE166178T1 (de) |
DE (2) | DE19500943C1 (de) |
DK (1) | DK0750785T3 (de) |
ES (1) | ES2117449T3 (de) |
WO (1) | WO1996021935A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106373708A (zh) * | 2015-07-21 | 2017-02-01 | 三星电子株式会社 | 电磁感应装置及具有电磁感应装置的供电设备和显示设备 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19835641C2 (de) * | 1998-08-06 | 2000-10-05 | Sew Eurodrive Gmbh & Co | Leiterplattenanordnung mit planarem induktivem Schaltungselement |
EP1225602A1 (de) * | 2001-01-23 | 2002-07-24 | Abb Research Ltd. | Transformatorwicklung |
FI120067B (fi) * | 2006-10-31 | 2009-06-15 | Jarkko Salomaeki | Menetelmä induktiivisen komponentin valmistamiseksi ja induktiivinen komponentti |
EP2467860A4 (de) * | 2009-08-18 | 2013-01-09 | Panacis Inc | Integrierter planarer mehrphasen-transformator |
DE102010062242A1 (de) | 2010-12-01 | 2012-06-06 | Robert Bosch Gmbh | Multiphasenwandler |
DE102010062240A1 (de) | 2010-12-01 | 2012-06-06 | Robert Bosch Gmbh | Multiphasenwandler |
DE102011003754A1 (de) * | 2011-02-08 | 2012-08-09 | Bolzenschweißtechnik Heinz Soyer GmbH | Transformator und Wicklungselement zum Bilden eines Wicklungspakets hierfür |
KR102209038B1 (ko) * | 2019-10-04 | 2021-01-28 | 엘지이노텍 주식회사 | 자기 결합 장치 및 이를 포함하는 평판 디스플레이 장치 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60258911A (ja) * | 1984-06-05 | 1985-12-20 | Fuji Xerox Co Ltd | トランスの巻線形成方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE906831C (de) * | 1951-12-11 | 1954-03-18 | Rudolf Sliwka | Vereinfachte Herstellung von Induktionsspulen, Drosseln und Transformatoren |
DD205578A1 (de) * | 1982-04-02 | 1983-12-28 | Inst Regelungstechnik | Wicklungsanordnung in dickschichttechnik fuer trennuebertrager |
JPS59152605A (ja) * | 1983-02-18 | 1984-08-31 | Matsushita Electric Ind Co Ltd | 積層インダクターの製造方法 |
JPS59189212U (ja) * | 1983-05-18 | 1984-12-15 | 株式会社村田製作所 | チツプ型インダクタ |
JPH05101938A (ja) * | 1991-10-03 | 1993-04-23 | Murata Mfg Co Ltd | 積層型コイル及びその製造方法 |
-
1995
- 1995-01-14 DE DE19500943A patent/DE19500943C1/de not_active Expired - Fee Related
- 1995-10-04 DE DE59502173T patent/DE59502173D1/de not_active Expired - Fee Related
- 1995-10-04 DK DK95934132.2T patent/DK0750785T3/da active
- 1995-10-04 EP EP95934132A patent/EP0750785B1/de not_active Expired - Lifetime
- 1995-10-04 AT AT95934132T patent/ATE166178T1/de not_active IP Right Cessation
- 1995-10-04 WO PCT/EP1995/003924 patent/WO1996021935A1/de active IP Right Grant
- 1995-10-04 ES ES95934132T patent/ES2117449T3/es not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60258911A (ja) * | 1984-06-05 | 1985-12-20 | Fuji Xerox Co Ltd | トランスの巻線形成方法 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACS OF JAPAN vol. 10, Nr. 129 (E-304)& JP-A-60258911 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106373708A (zh) * | 2015-07-21 | 2017-02-01 | 三星电子株式会社 | 电磁感应装置及具有电磁感应装置的供电设备和显示设备 |
Also Published As
Publication number | Publication date |
---|---|
ATE166178T1 (de) | 1998-05-15 |
EP0750785A1 (de) | 1997-01-02 |
ES2117449T3 (es) | 1998-08-01 |
DK0750785T3 (da) | 1998-06-02 |
DE59502173D1 (de) | 1998-06-18 |
WO1996021935A1 (de) | 1996-07-18 |
DE19500943C1 (de) | 1996-05-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69112186T2 (de) | Induktive Anordnung mit einem Ringformkern. | |
DE2825854C2 (de) | ||
WO2020001682A1 (de) | Aktiv gekühlte spule | |
DE102012214371A1 (de) | An einem Fahrzeug angeordnete Umwandlungsvorrichtung für elektrische Leistung | |
EP0293617B1 (de) | Hochfrequenz-Leistungsübertrager | |
EP0750785B1 (de) | Planartransformator für schaltnetzteile zur erzeugung von kleinspannungen und verfahren zu dessen herstellung | |
DE102019103770A1 (de) | Vorrichtung zur Umwandlung von elektrischer Energie in Wärme und elektrische Heizvorrichtung mit einer solchen Vorrichtung | |
DE69803440T2 (de) | Wechselstromverteilungssystem | |
DE102012003364A1 (de) | Planarer Übertrager | |
DE69502006T2 (de) | Transformatoren | |
DE102016203613A1 (de) | Elektronisches Bauelement und Verfahren zu dessen Herstellung | |
DE3700488A1 (de) | Leistungsuebertrager mit ferromagnetischem kern | |
EP3001435B1 (de) | Trockentransformatorkern | |
EP0716432A1 (de) | Planare Induktivität | |
DE60130572T2 (de) | Induktive bauelemente | |
DE9114783U1 (de) | Flachform-Planar-Transformator zur Verwendung in Offline-Schaltnetzteilen | |
EP2056309A1 (de) | Verfahren zur Herstellung einer Spule und eine Spule | |
DE4137776C2 (de) | Hochfrequenzleistungsübertrager in Multilayer-Technik | |
DE10062400C2 (de) | Flexible Induktive Bauelemente für Leiterfolien | |
DE4105999A1 (de) | Folienspule | |
EP1293995A2 (de) | Induktives elektronisches Bauelement in Flachbauweise, insbesondere Planartransformator oder Planarspule | |
DE19652638C2 (de) | Transformator zur Erzeugung einer Hochspannung | |
EP0122546B1 (de) | Zeilentransformator | |
DE3611069A1 (de) | Vorschaltdrossel, insbesondere fuer gasentladungslampen | |
DE102004026052B3 (de) | Induktives Koppelelement und Verfahren zur Herstellung desselben |
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 |
|
17P | Request for examination filed |
Effective date: 19960904 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: FRIWO GERAETEBAU GMBH |
|
17Q | First examination report despatched |
Effective date: 19970703 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
ITF | It: translation for a ep patent filed | ||
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980513 |
|
REF | Corresponds to: |
Ref document number: 166178 Country of ref document: AT Date of ref document: 19980515 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19980513 |
|
REF | Corresponds to: |
Ref document number: 59502173 Country of ref document: DE Date of ref document: 19980618 |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2117449 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: 80372 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980813 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980813 |
|
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 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990430 |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20000908 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20000918 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IE Payment date: 20001006 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20001020 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 20001023 Year of fee payment: 6 Ref country code: DK Payment date: 20001023 Year of fee payment: 6 Ref country code: CH Payment date: 20001023 Year of fee payment: 6 Ref country code: BE Payment date: 20001023 Year of fee payment: 6 Ref country code: AT Payment date: 20001023 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20001024 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20001109 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011004 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20011004 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011004 Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011004 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011004 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011031 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011031 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
BERE | Be: lapsed |
Owner name: FRIWO GERATEBAU G.M.B.H. Effective date: 20011031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020501 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20011004 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020628 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20020501 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020702 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20021113 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051004 |