EP2920798A1 - Planarübertrager - Google Patents
PlanarübertragerInfo
- Publication number
- EP2920798A1 EP2920798A1 EP13791791.0A EP13791791A EP2920798A1 EP 2920798 A1 EP2920798 A1 EP 2920798A1 EP 13791791 A EP13791791 A EP 13791791A EP 2920798 A1 EP2920798 A1 EP 2920798A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- conductor substrate
- coupling
- magnetic core
- primary winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- H01F27/24—Magnetic cores
-
- 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
- H01F27/2895—Windings disposed upon ring cores
-
- 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 having a primary winding, with a secondary winding, with a coupling winding and with a conductor substrate, the carrier of one or more magnetic core rings.
- US 8,022,802 B2 relates to a sensor for measuring electrical parameters in a high voltage environment and includes isolation transformers in various embodiments, including an embodiment having a single main circuit board for a plurality of juxtaposed ones
- Windings magnetically linked by magnetic core rings and another embodiment comprising a main circuit board, a sub-circuit board, and two magnetic core rings passing through openings of the main and sub-circuit boards.
- the main circuit board In and on the main circuit board are the primary winding and the secondary winding, while on the sub-circuit board, the coupling winding for coupling the two magnetic core rings is arranged. There is some gap between the two circuit boards, and the coupling winding on the slave circuit board also has one
- Magnetic core rings on. In this way, relatively large toroidal openings in the magnetic core rings are needed.
- Ferromagnetic cores are magnetically coupled to one another via an additional winding embedded in a printed circuit board. Because of the necessary winding of the
- Ferromagnetic cores is a so-built transformer to manufacture only at high cost.
- ferromagnetic core are connected to the transformer.
- Coil turns on opposite sides of a
- the device works due to induction, without ferromagnetic cores.
- EP 0 715 322 A1 discloses a transformer manufactured in planar technology, in which conductor tracks are accommodated in layer layers in a printed circuit board and so on
- a ferromagnetic core surrounds the transformer windings with annular
- the transformer can be controlled potential-free with opposing signals.
- Flow direction of a common primary winding, or a single primary winding directly generates a positive control signal in a first secondary winding in the same coupling direction.
- a signal in the negative magnetic flux direction of a second or the same winding generates directly in a second secondary winding in the opposite coupling direction to the first secondary winding also a positive control signal or in the first secondary winding a negative
- Control signal and if no further signal is to be transmitted, takes place by circuit elements
- DE 10 2009 037 340 A1 shows a transformer in which wound, annular cores are connected via a short-circuit winding.
- the short-circuit winding is, for example, connected by soldering with corresponding contacts of a printed circuit board.
- the invention is based on the object, a
- Planarübertrager specify that is easy to manufacture and in the smallest space allows potential separation for two or more potential groups.
- the new Planarübertrager has at least two
- Yoke legs provided ferromagnetic cores and a single, plate-shaped conductor substrate for forming a primary winding and at least one secondary winding, which are coupled together by at least one coupling winding.
- the conductor substrate forms a
- plate - shaped carrier for the ferromagnetic cores which are divided to form assemblable yoke core halves and thereby have at least two cross - through yoke legs, which are formed by recesses in the
- Conductor substrate can be inserted to form by closing the yoke core halves each having a magnetic core ring.
- an insulating layer covers the respective winding of the ferromagnetic material of at least two
- the coupling winding must have a sufficient isolation separation distance to adjacent inner sides of the toroidal core openings and to adjacent turns of
- first portion of the coupling winding which also wraps around the leg of an adjacent ring core with a second portion, the other leg receives the secondary winding.
- secondary windings There may be several provided with secondary windings
- Magnetic core rings connects and the primary winding is assigned to a magnetic core ring, while the secondary winding is associated with the other magnetic core ring.
- Conductor substrate is free of the mentioned windings, there may be an auxiliary winding, such as for control purposes, are arranged. But it is also possible that Primary winding or the secondary winding with a
- magnetic core rings as split yoke cores and the windings including the coupling winding as integral parts of the plate-shaped conductor substrate
- Jochkerne need only inserted through recesses in the plate-shaped conductor substrate and need to be completed in each case a magnetic core ring. At the same time, this design allows a good space utilization of the toroidal core opening while potential separation between adjacent magnetic core rings.
- Fig. 1 shows a first type of transformer in
- FIG. 2 shows the transformer of FIG. 1 according to section A-B
- FIG. 3 shows a second design of a transformer in FIG
- Fig. 5 a transformer with two secondary windings in
- Fig. 7 shows a further transformer with two
- Fig. 8 shows a further transformer in a schematic
- the main parts of the transformer are a primary winding 1, a secondary winding 2, a coupling winding 3, a first two-part magnetic core ring 4, a second two-part magnetic core ring 5 and a single plate-shaped
- the magnetic core rings 4, 5 each comprise two Jochkernhcoun 41, 51 and 42, 52, which close to the ring 4 with the first ring core opening 43 and the ring 5 with the second ring core opening 53.
- the magnetic core rings 4, 5 each have passage legs 44, 45 and 54, 55 and connecting legs between the pass-through legs.
- the leg 44 or 54 may belong to the one or the other core half 41, 42 or 51, 52, or may also be divided, as in FIG. 9
- the plate-shaped conductor substrate 6 has two pairs of recesses 61, 62 and 63, 64, the
- Openings for the für Bachsschenkel 44, 45 and 54, 55 of the magnetic core rings 4, 5 form.
- the pairs 61, 62 and 63, 64 of the recesses are separated from one another via an insulating path and receive the passage legs 44, 45 and 54, 55 of the magnetic core rings 4, 5.
- Primary winding 1 surrounds the recess 61 in several Layer layers of the conductor substrate 6, of which four layer planes 11, 12, 13, 14 are indicated here and on the surface of the conductor substrate, or
- the conductor substrate 6 fills the
- the primary winding 1 assumes a spiral course in each layer plane.
- the four spiral shapes are interconnected to give the primary winding 1.
- Short circuit winding closed, d. H. forms a pipe ring.
- the coupling winding may be arranged in two layer planes 31, 32 and is surrounded on all sides by an insulating layer having a thickness giving a partial insulation separation distance of L / 2.
- L means the total insulation separation distance resulting from the
- Layer planes 12, 13 and 22, 33 are by a
- Coupling winding 3 are the primary winding 1 and the Secondary winding 2 with galvanic isolation in the total isolation separation distance L coupled together.
- the magnetic core rings 4 and 5 with their core halves 41, 42 and 51, 52 surround the respective annular opening 43, and 53, respectively.
- the core halves may be the same or different and may be of different geometric shapes
- the cross sections can be rectangular, rounded, round or oval. Air gaps may be provided between the core halves, but it is
- Primary winding 1 in about half of the cross-sectional area of the annular opening 43, while the layers 31, 32 of the
- Coupling winding 3 has partial insulation separation distances of L / 2 to the opening edge or to the layers of the secondary winding. In this way there is a potential separation
- the coupling winding 3 is constructed isolated to all other potentials. Thereby, the isolation separation distance L can be established in two partial isolation separation distances.
- the distribution of the total insulation separation distance L may deviate from the distribution L / 2 + L / 2 in other
- Magnetic core rings 4 and 5 are chosen to be large enough for the magnetic core rings to hold their respective different potentials during operation of the transformer. If the primary and secondary windings to the associated
- Magnetic core rings do not comply with large insulation distances, this means that a lot of the cross-sectional area of the ring opening 43 or 53 can be used for the turns of the windings 1 and 2 and this space gain
- Planarübertrager is therefore suitable for miniaturization.
- Figs. 3, 4 show a variant of the transformer according to Fig. 1, 2, wherein the inner layer of the plate-shaped
- Conductor substrate 6 is used only for the coupling winding 3, which also here with each half
- Isolation separation distance L / 2 is separated from all other potentials.
- the primary winding 1 and the secondary winding 2 are located on the top and bottom of the conductor substrate 6, or near the surface in overlap with the subregions 34 and 35 of the coupling winding 3. Opposite the
- FIGS. 5 and 6 show a variant of the transformer with two secondary windings. Accordingly, there are two
- Fig. 7 shows a further variant of the transformer with two secondary windings 2a, 2b. For this variant, three magnetic core rings 4, 5 a, 5 b and a coupling winding. 3
- the legs of the magnetic core rings penetrate the conductor substrate 6 at the openings 61, 62, 63a, 63b, 64a, 64b.
- Secondary windings are not functionally independent of each other because they are in series in the equivalent circuit diagram. This means that ideally only one current can flow at the same time at both outputs at the same time.
- each of the magnetic core rings 4, 5 has a leg 44 or 54 looped around by two windings.
- the leg 44 is looped around by the primary winding 1 and by the partial region 34 of the coupling winding 3, while the leg 54 is looped around by the secondary winding 2 and by the partial region 35 of the coupling winding 3.
- the leg 45 parallel to the leg 45 and the leg 54 parallel leg 55 are thus free and can, for example, carry an auxiliary winding, which is usable for control purposes.
- Fig. 10 shows a variant of the embodiment of Fig. 8, 9.
- Magnetic core rings 4 and 5 are each covered with spiral winding sections 15, 16, 17, 18 and 25, 26, 27, 28, respectively.
- the winding section 15 forms left-handed spiral windings on the upper side of the
- the winding section 16 is conductively connected on the underside to the winding section 17, with the outer lead winding of the
- Winding section 17 From there, right-handed spiral-shaped windings are run through, which in turn are partially covered by the winding section 18. Via a via, the pipe is placed on top of the
- the shapes of the secondary winding 2 are mirror images of the shape of the primary winding 1.
- the coupling winding 3 extends in a layer plane in the interior of the conductor substrate 6 corresponding to the representation in FIG. 9.
- FIGS. 11 and 12 show an embodiment of the invention
- the core halves 41, 42 and 51, 52 are designed for example U-shaped.
- the magnetic core rings may be assembled in a manner different from that illustrated, the halves may each consist of more than one part. So you can, for example, four leg bars to a
- FIGS. 13, 14 show an embodiment of the transmitter with E-shaped core halves 41, 42, which form a central web corresponding to the leg 44 during the merger, which extends through the opening 61 in the conductor substrate 6.
- the other magnetic core ring 6 has such a central web to form the leg 54.
- the leg 44 is surrounded by the primary winding 1 and the legs 54 of the secondary winding 2 spirally in two layer planes 11, 14, similar to that shown in Fig. 9.
- the coupling winding 3 with their
- Subareas 34, 35 forms a closed loop around the two central webs of the magnetic core rings. It can do this in two layer planes 31, 32 within the
- Fig. 13, 14 corresponds functionally to the embodiment of Fig. 8, 9. It can but also a construction according to FIG. 10 are used, wherein the third leg 46 or 56 still for a
- Embodiments are preferably made as an electronic circuit board. However, production as a sprayed substrate is also possible.
- the transformer can be produced both as a single component with a separate circuit board, in which case this component on a
- Main board must be fitted, as well as directly into a main PCB integrate.
- Primary winding and / or the secondary winding to be provided with one or more center taps.
- the transformer is manufactured as follows:
- the ferromagnetic cores contain two halves 41, 42, and 51, 52, respectively, which can be assembled into a closed ring structure, the magnetic core rings 4, 4a, 4b, 5, 5a, 5b, and do not necessarily consist of only two parts.
- a conductor substrate 6 provided with at least two pairs of recesses 61, 62, 63, 64 as yoke leg openings, for each magnetic core ring own, separate from other pairs of recesses. At least one of the two recesses of the first pair, namely the
- Opening 61 has been made surrounded by the primary winding 1, as well as the second recess 64 of the second pair with respect to the secondary winding 2.
- the other recess 62 of the first pair is over the
- the yoke core halves 41, 42 and 51, 52 are thereby mounted to the magnetic core rings 4, 5, that the yoke legs are pushed through the associated recesses of the conductor substrate 6 and the yoke core halves are closed to form a respective magnetic circuit.
- the primary winding 1 with the coupling winding 3 and via this with the secondary winding 2 is electromagnetic
- the transformer according to the invention is easy to manufacture.
- Primary side and the secondary side can be one
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012111069.7A DE102012111069A1 (de) | 2012-11-16 | 2012-11-16 | Planarübertrager |
PCT/EP2013/073594 WO2014076067A1 (de) | 2012-11-16 | 2013-11-12 | Planarübertrager |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2920798A1 true EP2920798A1 (de) | 2015-09-23 |
EP2920798B1 EP2920798B1 (de) | 2022-09-14 |
Family
ID=49584721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13791791.0A Active EP2920798B1 (de) | 2012-11-16 | 2013-11-12 | Planarübertrager |
Country Status (5)
Country | Link |
---|---|
US (1) | US9711271B2 (de) |
EP (1) | EP2920798B1 (de) |
CN (1) | CN104838458B (de) |
DE (1) | DE102012111069A1 (de) |
WO (1) | WO2014076067A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6227446B2 (ja) * | 2014-03-12 | 2017-11-08 | 日立オートモティブシステムズ株式会社 | トランスおよびそれを用いた電力変換装置 |
US10361023B2 (en) * | 2014-08-07 | 2019-07-23 | Nvidia Corporation | Magnetic power coupling to an integrated circuit module |
JP6690386B2 (ja) * | 2016-04-27 | 2020-04-28 | Tdk株式会社 | コイル部品及び電源回路ユニット |
JP2017199800A (ja) * | 2016-04-27 | 2017-11-02 | Tdk株式会社 | コイル部品及び電源回路ユニット |
GB201612032D0 (en) | 2016-07-11 | 2016-08-24 | High Speed Trans Solutions Ltd | Isolating transformer |
US10252618B2 (en) * | 2016-09-06 | 2019-04-09 | Ford Global Technologies, Llc | Backup electrical supply for main capacitor discharge |
JP6572871B2 (ja) | 2016-11-22 | 2019-09-11 | トヨタ自動車株式会社 | トランス装置およびその組み立て方法 |
JP6938911B2 (ja) * | 2016-12-28 | 2021-09-22 | 富士電機株式会社 | 装置 |
CN106971829B (zh) * | 2017-04-28 | 2019-03-01 | 华为技术有限公司 | 平面变压器 |
CN109712785A (zh) * | 2017-10-26 | 2019-05-03 | 通用电气公司 | 隔离变压装置,开关驱动电路及脉冲电源系统 |
DE102018201488A1 (de) | 2018-01-31 | 2019-08-01 | Siemens Aktiengesellschaft | Elektrisches Gerät mit Pressplatten zum Verspannen eines magnetisierbaren Kerns |
JP6948757B2 (ja) * | 2018-06-01 | 2021-10-13 | 株式会社タムラ製作所 | 電子部品 |
US11044022B2 (en) | 2018-08-29 | 2021-06-22 | Analog Devices Global Unlimited Company | Back-to-back isolation circuit |
CN109215994A (zh) * | 2018-10-09 | 2019-01-15 | 苏州康开电气有限公司 | 干式隔离变压器 |
US11450461B2 (en) * | 2019-03-22 | 2022-09-20 | Cyntec Co., Ltd. | Electronic device |
US11450469B2 (en) | 2019-08-28 | 2022-09-20 | Analog Devices Global Unlimited Company | Insulation jacket for top coil of an isolated transformer |
US11387316B2 (en) | 2019-12-02 | 2022-07-12 | Analog Devices International Unlimited Company | Monolithic back-to-back isolation elements with floating top plate |
DE102019219726A1 (de) * | 2019-12-16 | 2021-06-17 | Robert Bosch Gmbh | Induktive Baugruppe, und Verfahren zur Herstellung der induktiven Baugruppe |
US11682515B2 (en) * | 2020-04-15 | 2023-06-20 | Monolithic Power Systems, Inc. | Inductors with magnetic core parts of different materials |
US20240186054A1 (en) * | 2022-10-25 | 2024-06-06 | Delta Electronics, Inc. | Isolated power supply for gate driver |
DE102023124973A1 (de) | 2023-09-15 | 2025-03-20 | Phoenix Contact E-Mobility Gmbh | Vorrichtung zur Fehlerstromerfassung |
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US2788486A (en) * | 1952-06-14 | 1957-04-09 | Gen Motors Corp | Electrical testing apparatus |
DE2529296A1 (de) * | 1975-07-01 | 1977-01-20 | Ferranti Ltd | Impuls-transformator |
US4201965A (en) * | 1978-06-29 | 1980-05-06 | Rca Corporation | Inductance fabricated on a metal base printed circuit board |
NO175394C (no) * | 1991-07-01 | 1994-10-05 | Abb En As | Anordning ved måling av ström |
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GB2307795A (en) * | 1995-12-01 | 1997-06-04 | Metron Designs Ltd | Isolation transformer with plural magnetic circuits coupled by a winding |
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DE102009057788A1 (de) | 2009-12-11 | 2011-06-22 | Krohne Messtechnik GmbH, 47058 | Planartransformator |
JP2011154581A (ja) | 2010-01-28 | 2011-08-11 | Konica Minolta Business Technologies Inc | 展示会見学支援システム及び情報表示装置 |
JP2011181889A (ja) * | 2010-02-04 | 2011-09-15 | Mitsubishi Electric Corp | 電源装置およびパワーモジュール |
GB201011085D0 (en) | 2010-07-01 | 2010-08-18 | Micromass Ltd | Improvements in planar transformers particularly for use in ion guides |
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2012
- 2012-11-16 DE DE102012111069.7A patent/DE102012111069A1/de not_active Withdrawn
-
2013
- 2013-11-12 WO PCT/EP2013/073594 patent/WO2014076067A1/de active Application Filing
- 2013-11-12 EP EP13791791.0A patent/EP2920798B1/de active Active
- 2013-11-12 US US14/443,194 patent/US9711271B2/en active Active
- 2013-11-12 CN CN201380059544.9A patent/CN104838458B/zh active Active
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2014076067A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20150332838A1 (en) | 2015-11-19 |
DE102012111069A1 (de) | 2014-05-22 |
CN104838458A (zh) | 2015-08-12 |
CN104838458B (zh) | 2018-02-13 |
EP2920798B1 (de) | 2022-09-14 |
US9711271B2 (en) | 2017-07-18 |
WO2014076067A1 (de) | 2014-05-22 |
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