EP1391900A1 - Transformateur de signal et procédé de fonctionnement d'un tel transformateur de signal - Google Patents

Transformateur de signal et procédé de fonctionnement d'un tel transformateur de signal Download PDF

Info

Publication number
EP1391900A1
EP1391900A1 EP02405713A EP02405713A EP1391900A1 EP 1391900 A1 EP1391900 A1 EP 1391900A1 EP 02405713 A EP02405713 A EP 02405713A EP 02405713 A EP02405713 A EP 02405713A EP 1391900 A1 EP1391900 A1 EP 1391900A1
Authority
EP
European Patent Office
Prior art keywords
leg
circuit board
winding
signal transformer
primary
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02405713A
Other languages
German (de)
English (en)
Inventor
Pieder Joerg
Alper Akdag
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.)
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
Original Assignee
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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 ABB Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Priority to EP02405713A priority Critical patent/EP1391900A1/fr
Priority to US10/645,607 priority patent/US7042323B2/en
Publication of EP1391900A1 publication Critical patent/EP1391900A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F29/146—Constructional details
    • 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
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
    • 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
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/04—Fixed transformers not covered by group H01F19/00 having two or more secondary windings, each supplying a separate load, e.g. for radio set power supplies

Definitions

  • the invention relates to the field of signal transformer technology. It starts from a signal transformer and a method for operating such a signal transformer according to the preamble of claims 1 and 20.
  • Signal transformers are used today in a variety of power electronics circuits, especially in driver circuits for controlling power semiconductor switches from Inverters.
  • the signal transformer of the driver circuit is used for galvanic Separation of a signal function generator from the power semiconductor switch to be controlled.
  • Such a signal transformer is described, for example, in GB 2 293 933 A. It is for the galvanically isolated transmission of a switch-on signal the power semiconductor switch a first signal transformer and the galvanically isolated Transmission of a switch-off signal of the power semiconductor switch, a second signal transformer intended.
  • Both signal transformers are usually two-legged executed, the first leg of a primary winding and the second Leg is at least partially enclosed by a secondary winding.
  • the two Legs of each such signal transformer are usually such together connected that a magnetic circuit is created by one through the respective primary winding generated main magnetic flux flow can flow.
  • the object of the invention is therefore to provide a signal transformer in which a signal on the transformer input side is transmitted as a plurality of output signals can, which is still particularly space-saving, is characterized by high availability and is also simple, inexpensive and easy to maintain. Furthermore is to specify a method which enables particularly efficient operation of such a signal transformer allows. These tasks are characterized by the features of claim 1 and 20 solved. Advantageous developments of the invention are specified in the subclaims.
  • the signal transformer according to the invention has a primary leg and a first leg Secondary leg, wherein a primary winding is provided which the primary leg at least partially encloses, and further a secondary winding is provided, which at least partially encloses the first secondary leg.
  • the primary leg connected to the first secondary leg.
  • the additional secondary leg as well as for the first secondary leg is at least in each case a secondary winding is provided, the secondary winding the respective Secondary leg at least partially encloses.
  • a control winding is provided which at least the respective secondary leg partially encloses.
  • a primary winding signal fed into the primary winding can advantageously be provided to all secondary windings, so that at each output a secondary winding signal is applied to the secondary windings.
  • a transfer of a single primary winding signal as several, i.e. as one of the number of secondary windings corresponding number of secondary winding signals is particularly easy. Accordingly, there is only a single signal transformer for transmitting a primary winding signal necessary as a plurality of secondary winding signals, which advantageously a simple and inexpensive signal transformer with a small space and material requirement can be achieved.
  • Control winding can also be the secondary winding signal of the corresponding secondary leg selectively switch on or off so that, for example, maintenance work can be this secondary leg can be carried out without the operation of the signal transformer to have to interrupt. This can be a very easy to maintain and can be realized by a high availability marked signal transformer.
  • feeding is carried out a primary flow of the primary winding signal into the primary winding in the primary leg generated.
  • the main flow of the primary leg continues to be divided into partial flows on the secondary leg on both sides of the primary leg, the number of partial flows on one Primary leg side corresponds to the number of secondary legs on this side.
  • the control signal is fed into at least one control winding in such a way that that a control flow is generated in the associated secondary leg, by means of of the control flow that on the associated secondary winding of the corresponding secondary leg applied secondary winding signal is influenced.
  • Influencing the Secondary winding signal is caused by the control flow, which is the partial flow of the corresponding secondary leg influenced, in particular reduced, compensated or strengthened.
  • the signal transformer according to the invention is particularly advantageously used in a Driver circuit for at least one controllable power semiconductor switch.
  • a driver circuit has the signal transformer according to the invention , the driver circuit also comprising a signal function generator and the signal transformer according to the invention preferably between this signal function generator and the at least one controllable power semiconductor switch turned on is.
  • a large number of the controllable power semiconductor switches mentioned above, which advantageously each with a secondary winding of the signal transformer are connected to be controlled by only a single signal transformer.
  • the additional secondary legs 5 are connected to the primary leg 1 and the first secondary leg 4 according to FIG. 1.
  • At least one secondary winding 6 is provided for each of the additional secondary legs 5 and for the first secondary leg 4, the secondary winding 6 at least partially enclosing the respective secondary leg 4, 5.
  • the primary leg 1 and the secondary leg 4, 5 are preferably made of a magnetizable material.
  • the additional secondary legs 5 1, together with the primary leg 1 and the first secondary leg 4, preferably form an essentially comb-shaped signal transformer core 13, which is made in one piece.
  • connection of the additional secondary leg 5 to the primary leg 1 and the first secondary leg 4 is formed on the one hand via the integrally formed signal transformer core 13 and on the other hand via a yoke 14, the yoke 14 being connected to the open side of the signal transformer core 13, so that a magnetic circuit between the yoke 14 and the signal transformer core 13 is closed.
  • a control winding 3 is provided for each secondary leg 4, 5, which also at least partially surrounds the respective secondary leg 4, 5.
  • a primary winding signal S P fed into the primary winding 1 can advantageously be transmitted to all the secondary windings 6 by means of the 2n + 1 additional secondary legs 5 and by means of the at least one secondary winding 6 provided for the additional secondary legs 5 and for the first secondary leg 4.
  • a secondary winding signal S S is thus present at each output of the secondary windings 6.
  • a transmission of a single primary signal S P as a plurality of the number of secondary windings 6 corresponding secondary winding signals S S is thereby advantageously possible may be achieved whereby a large space and material saving by omitting the known from the prior art multi-transformer solution.
  • the secondary winding signal S S of the corresponding secondary leg 6 can also be specifically switched on or off, so that, for example, maintenance work can be carried out on this secondary leg 4, 5. without having to interrupt the operation of the signal transformer.
  • the signal transformer according to the invention thus represents a very maintenance-friendly solution with high availability.
  • FIG. 1 only one secondary winding 6 is shown for each secondary leg 4, 5 as an example and for the sake of clarity, any number of secondary windings 6 for each secondary leg 4, 5 being conceivable are.
  • each for a secondary leg 4, 5 the number of secondary winding signals S S per secondary leg 4, 5 can advantageously be increased, the secondary winding signals S S being specifically switched on or in by means of the control signal S St mentioned above for such a secondary leg 4, 5 can be turned off.
  • the influencing of the secondary winding signal S S is discussed in greater detail in the description of the method according to the invention for operating the signal transformer.
  • 1 is the number of secondary legs in the signal transformer according to the invention 4, 5 the same on both sides of the primary leg 1, i.e. in the example in Fig. 1
  • Signal transformer shown is a first secondary leg 4 and three additional secondary legs 5, wherein the first secondary leg 4 and an additional secondary leg 5 of the three additional secondary legs 5 on one side of the Primary leg 1 and the other additional secondary leg 5 of the three additional Secondary leg 5 arranged on the other side of the primary leg 1 are.
  • the primary winding 2, secondary windings 6 and control windings 3 described so far 1 are each realized as a wound conductor.
  • a primary winding 2 of the inventive signal transformer according to FIG. 2 the primary winding 2 is designed as a conductor 8 of a primary winding circuit board 7.
  • the Conductor 8 of the primary winding circuit board 7 from one of the clarity in Fig. 2nd Insulating layer, not shown, surrounding the conductor track 8 advantageously before partial discharges and protects against corrosion.
  • the primary winding circuit board 7 according to FIG. 2 an opening 9 for the passage of the primary leg 1.
  • the conductor 8 of the primary winding circuit board 7 also extends around the opening 9 in the plate propagation direction the primary winding circuit board 7. This allows a low-inductance primary winding 2 can be achieved with a low overall height.
  • the overall height of the signal transformer according to the invention even when using the primary winding circuit board described above 7, in particular with only one or a small number of realized as wound conductors Secondary windings 6 per secondary leg 4, 5 can be advantageously reduced.
  • the control winding 3 of a secondary leg 4, 5 is designed as a conductor 8 of a control winding circuit board 11.
  • the conductor 8 of the secondary winding circuit board 10 and the Conductor 8 of the control winding circuit board 11 each for the sake of clarity In Fig. 3 not shown insulating layer surrounding the conductor track 8 advantageously before partial discharges and protects against corrosion.
  • the secondary winding circuit board 10 and 3 each have an opening 9 for the passage of the respective secondary leg 4, 5.
  • the conductor 8 of the secondary winding circuit board 10 extends according to FIG. 3 around the opening 9 in the plate propagation direction of the secondary winding circuit board 10.
  • the conductor track 8 of the control winding circuit board extends 11 around the opening 9 in the plate propagation direction of the control winding circuit board 11. This allows a low-inductance secondary winding 6 and control winding 3 can be achieved with a low overall height.
  • the overall height of the invention Signal transformers themselves can be used using the secondary winding circuit board described above 10 and the control winding circuit board 11 described above, particularly advantageous also in the case of a primary winding 2 realized as a wound conductor be reduced. Another advantageous reduction in the overall height of the inventive Signal transformer can be achieved by that to the or the secondary winding circuit boards 10 per secondary leg 4, 5 and the associated control winding circuit board 11 a primary winding circuit board according to FIG. 2 in the inventive Signal transformer is used.
  • the 4 also shows a first embodiment of a multilayer printed circuit board 12.
  • the or each secondary winding 6 of a secondary leg 4, 5 and the control winding 3 of the same secondary leg 4, 5 each as conductor tracks 8 one such multilayer printed circuit board 12 is formed.
  • the multilayer printed circuit board 12 an opening 9 for the passage of the corresponding secondary leg 4, 5, the conductor tracks 8 of the multilayer printed circuit board 12 around the opening 9 in the direction of board propagation of the multilayer printed circuit board 12. All conductor tracks 8 are insulated from one another by means of insulating layers of the multilayer printed circuit board 12.
  • the secondary winding 6 and the control winding 3 as conductor tracks 8 of the multilayer printed circuit board 12 can also be extremely small Overall height of the secondary winding 6 and control winding 3 can be achieved.
  • This also allows the signal transformer according to the invention can be realized cheaply and quickly.
  • the overall height of the signal transformer according to the invention even when using the multilayer circuit board described above 12, in particular also advantageous in the case of a primary winding 2 realized as a wound conductor can be further reduced.
  • Another advantageous reduction in the overall height of the inventive Signal transformer is achieved by going to the multilayer circuit board 12 a primary winding circuit board according to FIG. 2 in the inventive Signal transformer is used.
  • a second embodiment of a multilayer printed circuit board 12 according to FIG. 5 there is a difference for the first embodiment of the multilayer printed circuit board 12 according to FIG. 4, the secondary windings 6 of all secondary legs 4, 5 and the control windings 3 of all secondary legs 4, 5 are each designed as conductor tracks 8 of a single multilayer printed circuit board 12. Furthermore, the multilayer printed circuit board 12 according to FIG. 5 has openings 9 for the passage the respective secondary leg 4, 5 and an opening 9 for the passage of the primary leg 1 on. In addition, each conductor track 8 of the multilayer printed circuit board extends 12 around the associated opening 9 in the plate propagation direction of the multilayer printed circuit board 12. Furthermore, the conductor tracks 8 through insulating layers of the multilayer printed circuit board 12 isolated from each other.
  • this second embodiment of the multilayer printed circuit board 12 can in addition to the advantageous low-inductance realization of the secondary winding 6 and the control winding 3 as conductor tracks 8 of the multilayer printed circuit board 12 also an extremely low height of the secondary winding 6 and control winding 3 can be achieved.
  • the signal transformer according to the invention can also be inexpensive and can be realized quickly.
  • the others to the first embodiment of the multilayer printed circuit board The advantages given in FIG. 4 with regard to overall height also apply to the second embodiment the multilayer printed circuit board according to FIG. 5.
  • a third embodiment of a multilayer printed circuit board 12 according to FIG. 6 there are differences to the first embodiment of the multilayer printed circuit board 12 according to FIG. 4 and in difference for the second embodiment of the multilayer printed circuit board 12 according to FIG. 4, the secondary windings 6 of all secondary legs 4, 5 and the control windings 3 of all secondary legs 4, 5 and the primary winding 2 of the primary winding leg 1 each as conductor tracks 8 a single multilayer printed circuit board 12 is formed.
  • the multilayer printed circuit board also has 12 according to FIG. 6 openings 9 for the passage of the respective secondary legs 4, 5 and an opening 9 for the passage of the primary leg 1. Also stretches each conductor track 8 of the multilayer printed circuit board 12 around the associated opening 9 around in the plate propagation direction of the multilayer printed circuit board 12.
  • the multilayer printed circuit board 12 according to FIG. 6 compared to a further reduction in the overall height of the signal transformer according to the invention an inventive signal transformer with the embodiments of Multilayer printed circuit board 12 according to FIGS. 4 and 5.
  • Multilayer printed circuit board 12 according to FIG. 6 further simplifies implementation and an associated cost reduction of the signal transformer according to the invention can be achieved since no separate primary winding 2 in the form of a wound conductor or a primary winding circuit board 7 is necessary.
  • the signal transformer according to the invention is not based on realizations with the combinations of the embodiments of the primary windings described above 2, secondary windings 6 and control windings 3, in particular according to FIG. 2 to FIG. 6, is limited. Any combination of the embodiments of those described Primary windings 2, secondary windings 6 and control windings 3 and their number therefore possible.
  • the signal transformer according to the invention provides a particularly space-saving, simple, inexpensive and maintenance-friendly solution, which is also a high standard availability.
  • a main flux ⁇ H is generated by feeding the primary winding signal S P into the primary winding 2 in the primary leg 1.
  • the main flow ⁇ H of the primary leg 1 divides into partial flows ⁇ T1 , ⁇ T2 , ⁇ T3 , ... on the secondary legs 4, 5 on both sides of the primary leg 1, the number of partial flows ⁇ T1 , ⁇ T2 , ⁇ T3 , .. on a primary leg side corresponds to the number of secondary legs 4, 5 on this side.
  • Each partial flow ⁇ T1 , ⁇ T2 , ⁇ T3 , ... in the associated secondary leg 4, 5 causes a secondary winding signal S S in or the secondary windings 6 of the associated secondary leg 4, 5.
  • the control signal S St in at least one control winding 3 fed that a control flow is generated in the associated secondary leg 4, 5.
  • the secondary winding signal S S present at the associated secondary winding 6 of the corresponding secondary leg 4, 5 is then influenced by the control flow.
  • the influence of the secondary winding signal S S is caused by the control flow, which influences the partial flow ⁇ T1 , ⁇ T2 , ⁇ T3 , ... of the corresponding secondary leg 4, 5, ie the partial flow ⁇ T1 , ⁇ T2 , ⁇ T3 , ... of the corresponding secondary leg 4, 5 reduced, compensated or reinforced.
  • the secondary winding signal S S is preferably switched on or off by the control flow.
  • the secondary winding signal S S is switched off in the manner described above.
  • the secondary winding signal S S is switched on, for example, in that no control signal S St is applied to the corresponding control winding 3 and thus no control flow is generated which compensates the corresponding partial flow ⁇ T1 , ⁇ T2 , ⁇ T3 , ...
  • the signal transformer according to the invention is particularly advantageously used in a driver circuit for at least one controllable power semiconductor switch, in particular for a bipolar transistor with an isolated control electrode, switch-off thyristor, such as GTO or IGCT, and / or for a power MOSFET.
  • a driver circuit has a signal transformer as described above.
  • the driver circuit further comprises a signal function generator, the signal transformer according to the invention preferably being connected between this signal function generator and the at least one controllable power semiconductor switch. Because at least one secondary winding 6 is provided for each of the additional secondary legs 5 and for the first secondary leg 4 of the signal transformer, the primary winding signal S P fed into the primary winding 1 can be transmitted to all the secondary windings 6.
  • controllable power semiconductor switches mentioned above which are each advantageously connected to a secondary winding 6, can be supplied by only a single signal transformer with the control signals required for the control, which are the respective secondary winding signals S S.
  • the corresponding secondary winding signals S S can then be switched on or off via the respective control windings 3 of the secondary legs 4, 5, according to the inventive method described above, whereby a very simple functionality of the driver stage can be achieved.
  • control signal S St can then the secondary winding signals S S advantageous for such a secondary legs 4, 5 are selectively turned on or off substantially simultaneously and in the required manner for this case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP02405713A 2002-08-22 2002-08-22 Transformateur de signal et procédé de fonctionnement d'un tel transformateur de signal Withdrawn EP1391900A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02405713A EP1391900A1 (fr) 2002-08-22 2002-08-22 Transformateur de signal et procédé de fonctionnement d'un tel transformateur de signal
US10/645,607 US7042323B2 (en) 2002-08-22 2003-08-22 Signal transformer and method for operating such a signal transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02405713A EP1391900A1 (fr) 2002-08-22 2002-08-22 Transformateur de signal et procédé de fonctionnement d'un tel transformateur de signal

Publications (1)

Publication Number Publication Date
EP1391900A1 true EP1391900A1 (fr) 2004-02-25

Family

ID=30775911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02405713A Withdrawn EP1391900A1 (fr) 2002-08-22 2002-08-22 Transformateur de signal et procédé de fonctionnement d'un tel transformateur de signal

Country Status (2)

Country Link
US (1) US7042323B2 (fr)
EP (1) EP1391900A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014281A9 (de) * 2010-04-08 2012-11-29 Exscitron Gmbh Induktive elektronische Baugruppe und Verwendung einer solchen
DE102012003364A1 (de) * 2012-02-22 2013-08-22 Phoenix Contact Gmbh & Co. Kg Planarer Übertrager
US8896403B2 (en) 2009-10-19 2014-11-25 Exscitron Gmbh Inductive electronic module and use thereof
DE102020118708A1 (de) 2020-07-15 2022-01-20 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Elektrische anordnung mit übertrager zum übertragen von signalen von einer primärseite zu einer sekundärseite

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7432793B2 (en) * 2005-12-19 2008-10-07 Bose Corporation Amplifier output filter having planar inductor
US7733204B2 (en) * 2006-06-29 2010-06-08 Intel Corporation Configurable multiphase coupled magnetic structure
GB2447963B (en) * 2007-03-29 2011-11-16 E2V Tech High frequency transformer for high voltage applications
US7332993B1 (en) 2007-04-10 2008-02-19 Bose Corporation Planar transformer having fractional windings
US7847664B2 (en) * 2009-05-06 2010-12-07 Verde Power Supply, Inc. Electromagnetic apparatus using shared flux in a multi-load parallel magnetic circuit and method of operation
US20100327824A1 (en) * 2009-06-30 2010-12-30 Richard Dellacona Power supply using shared flux in a multi-load parallel magnetic circuit
DE102009029528A1 (de) * 2009-09-17 2011-03-24 Robert Bosch Gmbh Integrierter Schaltkreis zur Informationsübertragung
US8416045B2 (en) * 2011-06-27 2013-04-09 Onyxip, Inc. Magnetic power converter
FR3019933B1 (fr) * 2014-04-14 2017-11-03 Valeo Equip Electr Moteur Transformateur planaire d'un convertisseur courant continu-courant continu a resonance, et convertisseur correspondant
US9425644B1 (en) 2015-06-03 2016-08-23 Thor Charger Company Method and apparatus for charging an electrically chargeable device utilizing resonating magnetic oscillations in the apparatus
US10910150B2 (en) * 2015-11-30 2021-02-02 Intel Corporation Reconfigurable coupled inductor
DE202017103569U1 (de) 2017-06-14 2018-09-17 Sma Solar Technology Ag Spule und elektrisches oder elektronisches Gerät mit einer derartigen Spule
JP6734328B2 (ja) * 2018-08-06 2020-08-05 株式会社京三製作所 リアクトル

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE714453C (de) * 1937-11-24 1941-11-29 Siemens Ag Transformator
US2313938A (en) * 1941-10-18 1943-03-16 Alfred P Daniels Frequency doubler device
US4432323A (en) * 1981-06-01 1984-02-21 Aisin Seiki Kabushiki Kaisha Ignition system
DE8915612U1 (fr) * 1988-06-16 1990-10-31 Abb Ceag Licht- Und Stromversorgungstechnik Gmbh, 4770 Soest, De
EP1134756A2 (fr) * 2000-03-06 2001-09-19 Nokia Multimedia Terminals Oy Dispositif de transfert d'information à travers un transformateur

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611224A (en) * 1967-08-24 1971-10-05 Licentia Gmbh Controllable reactive current generator
DE2024530A1 (de) * 1969-11-21 1971-06-03 Ind Sigma Sa De Cv Lichtbogenschweißmaschine
US3990030A (en) * 1975-08-11 1976-11-02 Standex International Corporation Pincushion correction transformer
CA1258881A (fr) * 1987-04-15 1989-08-29 Leonard Bolduc Transformateur-inducteur auto-regule a entrefers
US4837497A (en) * 1987-12-29 1989-06-06 Gregory Leibovich Variable transformer, reactor and method of their control
FI97176C (fi) 1994-09-27 1996-10-25 Abb Industry Oy Puolijohdekytkimen ohjauspiiri
SE506893C2 (sv) * 1996-05-23 1998-02-23 Asea Brown Boveri Styrbar induktor
DE19731170A1 (de) * 1997-07-21 1999-01-28 Kloeckner Moeller Gmbh Stromwandler für Drehstromsysteme
JP2000260639A (ja) * 1999-03-11 2000-09-22 Murata Mfg Co Ltd コイル装置およびこれを用いたスイッチング電源装置
US6414578B1 (en) * 2000-12-18 2002-07-02 Ascom Energy Systems Ag Method and apparatus for transmitting a signal through a power magnetic structure
JP4165034B2 (ja) * 2001-05-14 2008-10-15 サンケン電気株式会社 トランス
US6914508B2 (en) * 2002-08-15 2005-07-05 Galaxy Power, Inc. Simplified transformer design for a switching power supply

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE714453C (de) * 1937-11-24 1941-11-29 Siemens Ag Transformator
US2313938A (en) * 1941-10-18 1943-03-16 Alfred P Daniels Frequency doubler device
US4432323A (en) * 1981-06-01 1984-02-21 Aisin Seiki Kabushiki Kaisha Ignition system
DE8915612U1 (fr) * 1988-06-16 1990-10-31 Abb Ceag Licht- Und Stromversorgungstechnik Gmbh, 4770 Soest, De
EP1134756A2 (fr) * 2000-03-06 2001-09-19 Nokia Multimedia Terminals Oy Dispositif de transfert d'information à travers un transformateur

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8896403B2 (en) 2009-10-19 2014-11-25 Exscitron Gmbh Inductive electronic module and use thereof
DE102010014281A9 (de) * 2010-04-08 2012-11-29 Exscitron Gmbh Induktive elektronische Baugruppe und Verwendung einer solchen
DE102012003364A1 (de) * 2012-02-22 2013-08-22 Phoenix Contact Gmbh & Co. Kg Planarer Übertrager
US9460844B2 (en) 2012-02-22 2016-10-04 Phoenix Contact Gmbh & Co. Kg Planar transmitter with a layered structure
DE102020118708A1 (de) 2020-07-15 2022-01-20 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Elektrische anordnung mit übertrager zum übertragen von signalen von einer primärseite zu einer sekundärseite

Also Published As

Publication number Publication date
US7042323B2 (en) 2006-05-09
US20040036454A1 (en) 2004-02-26

Similar Documents

Publication Publication Date Title
EP1391900A1 (fr) Transformateur de signal et procédé de fonctionnement d'un tel transformateur de signal
DE60109205T2 (de) Verfahren und vorrichtung zum übertragen eines signals durch eine leistungsmagnetische struktur
DE3721759A1 (de) Auf einer leiterplatte angebrachter transformator
DE2717254C3 (de) Elektrische Gewebe-Schaltungsmatrix
EP3332481B1 (fr) Alimentation en tension bipolaire asymétrique
DE4005168A1 (de) Schaltgeraet zur ein- und ausschaltung
DE2724920C2 (de) Hochspannungsfeste Signalübertragungseinrichtung mit einem Trennübertrager
DE602004012806T2 (de) Transformatormodul für ein Schweissgerät
EP1305875A1 (fr) Ensemble de barres basse induction pour mutateur matriciel
EP0923092A2 (fr) Transformateur
WO2001013391A1 (fr) Profiles de raccordement d'appareils et de dispositifs electriques destines a differents courants nominaux
DE69630252T2 (de) Schaltvorrichtung für Hochspannungsschaltung mit Impulstransformator
DE3314655A1 (de) Cmos-pufferverstaerker
DE3411712C2 (fr)
DE69629175T2 (de) Gepulster Leistungswandler zur Erzeugung von kurzzeitigen Hochstrompulsen
DE2448099A1 (de) Dekodierschaltung mit komplementaeren feldeffekttransistoren
AT403260B (de) Übertrager, insbesondere für eine schweissvorrichtung
EP0584660A2 (fr) Méthode et dispositif de circuit pour la réduction des harmoniques
EP0226087B1 (fr) Moteur à courant triphasé
DE1162406B (de) Kryotronanordnung mit zwei in geringem Abstand voneinander sich kreuzenden oder parallel zueinander verlaufenden duennen Leiterstreifen
DE3912704A1 (de) Schaltung zur erzeugung von kurzen leistungsimpulsen
DE4229303A1 (de) Gleichrichter
DE3208449A1 (de) Treiberschaltung fuer einen transistor
EP0222687A2 (fr) Transformateur de courant pour un disjoncteur de protection
DE2812185B2 (de) Monolithisch integrierbare Auswahlschaltung

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

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040804

AKX Designation fees paid

Designated state(s): CH DE FI LI

17Q First examination report despatched

Effective date: 20080225

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100727