EP1271576A1 - E-I- oder E-E-Übertrager - Google Patents

E-I- oder E-E-Übertrager Download PDF

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Publication number
EP1271576A1
EP1271576A1 EP01115366A EP01115366A EP1271576A1 EP 1271576 A1 EP1271576 A1 EP 1271576A1 EP 01115366 A EP01115366 A EP 01115366A EP 01115366 A EP01115366 A EP 01115366A EP 1271576 A1 EP1271576 A1 EP 1271576A1
Authority
EP
European Patent Office
Prior art keywords
coil
leg
core
wound around
transformer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01115366A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jiri Karbula
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.)
Endress and Hauser Flowtec AG
Original Assignee
Endress and Hauser Flowtec AG
Flowtec 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 Endress and Hauser Flowtec AG, Flowtec AG filed Critical Endress and Hauser Flowtec AG
Priority to EP01115366A priority Critical patent/EP1271576A1/de
Priority to DK02751041.1T priority patent/DK1399934T3/da
Priority to EP02751041A priority patent/EP1399934B1/de
Priority to PCT/EP2002/006738 priority patent/WO2003003391A1/de
Priority to AT02751041T priority patent/ATE497629T1/de
Priority to DE50214897T priority patent/DE50214897D1/de
Priority to JP2003509475A priority patent/JP2004531090A/ja
Priority to US10/179,029 priority patent/US6831545B2/en
Publication of EP1271576A1 publication Critical patent/EP1271576A1/de
Withdrawn legal-status Critical Current

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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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/38—Auxiliary core members; Auxiliary coils or windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H01F2038/143—Inductive couplings for signals
    • 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 E-I transmitters or E-E transmitters.
  • the magnetic circuit of an E-I transmitter usually has a ferromagnetic E core, the two outer legs and has a middle leg and a ferromagnetic yoke in the form of a straight rod that is arranged in this way is that there is a double with the e-core forms a closed magnetic circuit.
  • the magnetic circuit of an E-E transmitter usually has a first ferromagnetic E core, the two Has outer legs and a middle leg, and one with identical to the first E core, second ferromagnetic E core on, which also has two outer legs and one Has middle leg and is arranged such that it together with the first e-core a double closed Magnetic circuit forms.
  • the respective two outer legs then form two outer webs and the two middle legs a middle bar.
  • the magnetic circuits mentioned are usually thereby Electrical energy transmitters that at least two Coils interact with the magnetic circuit, one of which either one each on an outer leg or outer web or one each on an outer leg or outer web and the Middle leg or middle bar or both on one Outer leg or outer web or both on the Middle leg or middle web are arranged.
  • transformers are used for primary-secondary circuit separation from e.g. AC signals or DC converters etc. So far, for everyone individual of these use cases a separate transformer intended.
  • An object of the invention is to provide E-I transmitters or E-E transformer so that each other independent signals can be transmitted simultaneously where the signals do not interfere with each other if possible should.
  • the invention is the first coil next to the second coil arranged.
  • the third coil is arranged next to the fourth coil.
  • the applied in the first or the second embodiment are one Primary or a secondary coil of a first AC energy transmission line as well as the third and the fourth coil a primary or a secondary coil one second AC transmission line.
  • the frequency of the first alternating energy much smaller than the frequency of the second Alternating energy preferably the first and the second Coil a primary or a secondary coil of one DC converter are as well as the third and the fourth coil of the galvanically isolated forwarding of Serve digital signals.
  • a transformer according to one of the configurations mentioned in one physical-electrical sensor with on-board evaluation electronics used.
  • According to another further embodiment of the invention becomes a transformer in a physical-electrical Measuring sensor with on-board evaluation electronics used, with the third coil an external two-wire fieldbus is connected and the fourth coil with a Digital switching of the on-board evaluation electronics interacts.
  • An advantage of the invention is that for two different functions one and the same transmitter can be used, which saves material and space.
  • the latter is of particular importance if on The place of use of the transformer is little space for electronic Components is present; this is with industrial Measuring devices are often the case because their housing shape is mostly is standardized.
  • a first is schematic and perspective Embodiment of an E-I transmitter shown.
  • E-I transformer 10 On E-I transformer 10 has a ferromagnetic E core E. and a ferromagnetic yoke I in the shape of a straight one Rod on.
  • the E core E has a first outer leg E1 and a second outer leg E2 and one Middle leg EM.
  • E-core E and yoke I are like this arranged that there are two closed magnetic circuits result.
  • the first magnetic circuit comprises the outer leg E1, the this connecting part of the Yokes I, the middle leg EM and the latter with the Outer leg E1 connecting part of the E core E.
  • the second magnetic circuit includes the outer leg E2, the latter part of the yoke I connecting the middle leg EM, the middle leg EM and the latter with the outer leg E2 connecting part of the E core E.
  • the E-I transmitter 10 has one around the middle leg EM wound first coil 1, one around the middle leg EM wound second coil 2, one around the outer leg E1 wound third coil 3 and one around the outer leg E1 wound fourth coil 4.
  • the coil 1 has connections 11, 12, the coil 2 connections 21, 22, the coil 3 Connections 31, 32 and the coil 4 connections 41, 42.
  • Fig. 1 are the coils 1, 2 on the central leg EM next to one another, preferably closely adjacent to one another.
  • FIG Embodiment of an E-I transmitter shown.
  • E-I transformer 10 ' has a ferromagnetic E core E' and a ferromagnetic yoke I 'in the shape of a straight one Rod on.
  • the E core E ' has a first outer leg E1 'and a second outer leg E2' and one Middle leg EM '.
  • E-core E 'and yoke I' are like this arranged that there are two closed magnetic circuits result.
  • the first magnetic circuit comprises the outer leg E1 ' this part of the Yokes I ', the middle leg EM' and the latter with the Outer leg E1 'connecting part of the E core E'.
  • the second magnetic circuit comprises the outer leg E2 ' this part of the Yokes I ', the middle leg EM' and the latter with the Outer leg E2 'connecting part of the E core E'.
  • the E-I transmitter 10 ' has a around the middle leg EM' wound first coil, one around the middle leg EM 'and on the first coil wound second coil 2 ', one around Outer leg E1 'wound third coil and one around first outer leg E1 'and on the third coil wound fourth coil 4 '. Because the first and the third Coil are each covered, they are not closed in Fig. 2 see.
  • the first coil has connections 11 ', 12', the coil 2 'connections 21', 22 ', the third coil connections 31', 32 'and the coil 4' connections 41 ', 42'.
  • E-E transmitter 20 has a first ferromagnetic E core E1 and a second ferromagnetic E core E2 on.
  • the E core E1 has a first outer leg ES11 and a second outer leg ES12 and a middle leg EM1.
  • the E core E2 has a first outer leg ES21 and a second outer leg ES22 and a middle leg EM2.
  • the two E cores E1, E2 are arranged such that there are two closed magnetic circuits.
  • the first magnetic circuit comprises the outer leg ES11, the Outer leg ES21, this with the middle leg EM2 connecting part of the E core E2, the middle leg EM2, the middle leg EM1 and the latter with the outer leg ES11 connecting part of the E core E1.
  • the second magnetic circuit comprises the outer leg ES21, the Outer leg ES22, this with the middle leg EM2 connecting part of the E core E2, the middle leg EM2, the middle leg EM1 and the latter with the outer leg ES21 connecting part of the E core E1.
  • the outer legs When assembled, the outer legs form ES11, ES12 a first outer web ST1, the outer legs ES21, ES22 a second outer web ST2 and the middle leg EM1, EM2 a center bar STM.
  • the E-E transmitter 20 has one around the central web STM wound first coil 6, one around the middle leg STM wound second coil 7, one around the outer web ST1 wound third coil 8 and one around the outer web ST1 wound fourth coil 9.
  • the coil 6 has connections 61, 62, the coil 7 connections 71, 72, the coil 8 Connections 81, 82 and the coil 9 connections 91, 92.
  • the coils 8, 9 on the outer web ST1 next to arranged preferably closely adjacent to each other.
  • the spools 6, 7, however, are on the middle leg STM with a selectable mutual distance next to each other; however, like the coils 8, 9, they can also be closely adjacent to be arranged to each other.
  • E-E transformer 20 On E-E transformer 20 'has a first ferromagnetic E core E1 'and a second ferromagnetic E core E2' on.
  • the E core E1 ' has a first outer leg ES11' and a second outer leg ES12 'and one Middle leg EM1 '.
  • the E core E2 ' has a first Outer leg ES21 'and a second outer leg ES22' and a middle leg EM2 '.
  • the first magnetic circuit comprises the outer leg ES11 ' Outer leg ES21 ', this with the middle leg EM2' connecting part of the E core E2 ', the middle leg EM2 ', the middle leg EM1' and the latter with the Outer leg ES11 'connecting part of the E core E1'.
  • the second magnetic circuit comprises the outer leg ES21 ' Outer leg ES22 ', this with the middle leg EM2' connecting part of the E core E2 ', the middle leg EM2 ', the middle leg EM1' and the latter with the Outer leg ES21 'connecting part of the E core E1'.
  • the outer legs When assembled, the outer legs form ES11 ', ES12' a first outer web ST1 ', the outer legs ES21 ', ES22' a second outer web ST2 'and the Middle leg EM1 ', EM2' a middle bar STM '.
  • the E-E transmitter 20 ' has a around the central web STM' wound first coil, a second wound on this Coil 7 ', a third wound around the outer web ST1' Coil and a fourth coil 9 'wound on this.
  • the first coil has connections 61 ', 62', the coil 7 ' Connections 71 ', 72', the third coil connections 81 ', 82' and the coil 9 'connections 91', 92 '.
  • the coils on the outer web ST1 ' are approximately in its center, on the other hand, the coils on the center bar STM ' arranged on the middle leg EM1 '; however, it is also any other position on the outside or the Middle bar possible.
  • the E core E, E ', the yoke I, I' and the two E cores E1, E2, E1 ', E2' e.g. a package of ferromagnetic Individual sheets or corresponding ferrite components.
  • the respective coils are also because of their clarity, the respective coils as Air coils, i.e. shown as coils without bobbins.
  • FIG. 5 is schematic in the form of a block diagram a preferred application of a transformer according to FIG. 1 to 4, namely the respective first coil and the respective second coil is a primary coil or one Secondary coil of a first alternating energy transmission path W1 and the respective third coil and the respective fourth coil is a primary or a Secondary coil of a second alternating energy transmission link W2.
  • the frequency is preferred the first alternating energy much smaller than that Frequency of the second alternating energy.
  • the respective first coil and the respective second coil primary or secondary coil a DC-DC converter and the third and the fourth coil are used for galvanically isolated forwarding of digital signals, such as that in EP-A 977 406, which the U.S. Patent Application 09 / 354,689 dated July 16, 1999 corresponds, is described.
  • a primary circuit 51 of the DC-DC converter is located on the one hand at a first DC voltage U1 to be converted and at a circuit zero point SN and on the other hand the coil 1 of Fig. 1; the corresponding first coil of Fig. 2 to 4 to choose, is of course also possible. Because this option also for the others Applies to coils, this is only due to the following Indication of the corresponding reference sign after a Dash indicated.
  • a secondary circuit 52 of the DC / DC converter is located on the one hand on the coil 2 - 2 ', 7, 7' and on the other hand there a converted second DC voltage U2, which is larger, can be equal to or less than the DC voltage U1.
  • the DC-DC converter is only as off the subcircuits 51, 52 and the coils 1, 2 etc. represented existing.
  • swing DC voltage converter at frequencies from 20 kHz to 100 kHz.
  • the third coil 3 - 3 ', 8 is on the primary side and fourth coil 4 - 4 ', 9, 9' is on the secondary side in one Subcircuit TS for galvanic digital signal separation corresponding to the aforementioned EP-A 977 406.
  • a digital signal D1 is the connection 31 - 31 ', 81, 81' of the coil 3 - 3 ', 8 fed.
  • connection 32 - 32 ', 82, 82' of coil 3 - 3 ', 8 there is an output of a delay element 53, which here consists of the series connection of four inverters.
  • connection 41 - 41 ', 91, 91' of the coil 4 - 4 ', 9, 9' is connected to an input of an inverter 54 during the
  • the connection 42 - 42 ', 92, 92' of the coil 4 - 4 ', 9, 9' of the Output of the secondary side of the subcircuit TS is at which a practically identical to the digital signal D1, however Galvanically isolated digital signal D2 occurs.
  • An output of the inverter 54 is connected to a Capacitor K connected, from which another connection via a resistor R at the circuit zero SN.
  • connection point of capacitor K and resistor R is located at an input of an inverter 55, one of which Output with connection 42 - 42 ', 92, 92' of coil 4 - 4 ', 9, 9' is connected.
  • inverter 55 one of which Output with connection 42 - 42 ', 92, 92' of coil 4 - 4 ', 9, 9' is connected.
  • the invention can be used particularly advantageously today usual physical-electrical sensors apply, such as for those for pressure, level, Temperature, flow - that means per unit of time a given cross-sectional area flowing volume or the per unit of time through a given cross-sectional area flowing mass of a fluid - or pH value etc.
  • Such sensors usually have on-board evaluation electronics; this is prepared by one physical-electrical converter signal such that it is a standard, e.g. the usual for a long time Current standard from 4 mA to 20 mA or one Frequency standard.
  • On-board means that Evaluation electronics spatially close to the physical-electrical Transducer, so arranged in its housing is.
  • the third coil is an external two-wire fieldbus, e.g. HART, FIELDBUS, PROFIBUS etc., connected and the fourth coil with a digital circuit of the on-board evaluation electronics cooperates or vice versa.
EP01115366A 2001-06-26 2001-06-26 E-I- oder E-E-Übertrager Withdrawn EP1271576A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP01115366A EP1271576A1 (de) 2001-06-26 2001-06-26 E-I- oder E-E-Übertrager
DK02751041.1T DK1399934T3 (da) 2001-06-26 2002-06-19 E-I eller E-E transformer
EP02751041A EP1399934B1 (de) 2001-06-26 2002-06-19 E-i- oder e-e-übertrager
PCT/EP2002/006738 WO2003003391A1 (de) 2001-06-26 2002-06-19 E-i- oder e-e-übertrager
AT02751041T ATE497629T1 (de) 2001-06-26 2002-06-19 E-i- oder e-e-übertrager
DE50214897T DE50214897D1 (de) 2001-06-26 2002-06-19 E-i- oder e-e-übertrager
JP2003509475A JP2004531090A (ja) 2001-06-26 2002-06-19 Ｅ−ｉあるいはｅ−ｅ変圧器
US10/179,029 US6831545B2 (en) 2001-06-26 2002-06-26 E-I or E-E transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01115366A EP1271576A1 (de) 2001-06-26 2001-06-26 E-I- oder E-E-Übertrager

Publications (1)

Publication Number Publication Date
EP1271576A1 true EP1271576A1 (de) 2003-01-02

Family

ID=8177822

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01115366A Withdrawn EP1271576A1 (de) 2001-06-26 2001-06-26 E-I- oder E-E-Übertrager
EP02751041A Expired - Lifetime EP1399934B1 (de) 2001-06-26 2002-06-19 E-i- oder e-e-übertrager

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP02751041A Expired - Lifetime EP1399934B1 (de) 2001-06-26 2002-06-19 E-i- oder e-e-übertrager

Country Status (6)

Country Link
EP (2) EP1271576A1 (ja)
JP (1) JP2004531090A (ja)
AT (1) ATE497629T1 (ja)
DE (1) DE50214897D1 (ja)
DK (1) DK1399934T3 (ja)
WO (1) WO2003003391A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111105925A (zh) * 2018-10-27 2020-05-05 杨勇 基于去磁电感滤波磁路的高压直流输电线感应取能装置及方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8048497B2 (en) 2007-04-27 2011-11-01 Hewlett-Packard Development Company, L.P. Gloss-enhancing coating for ink-jet media
WO2012136720A1 (de) 2011-04-04 2012-10-11 Immundiagnostik Ag Bestimmung von vitamin-d-metaboliten in trockenblut
DE102015108911A1 (de) 2015-06-05 2016-12-08 Phoenix Contact Gmbh & Co. Kg Planar-Transformator zur Energieübertragung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914652A (en) * 1971-11-17 1975-10-21 Philips Corp Color television display apparatus provided with a modulator for generating a correction current for correcting deflection errors
DE4124509A1 (de) * 1991-07-24 1993-01-28 Zielinski Adolf Herbert Astor Transformator fuer elektrische energie
US5760669A (en) * 1994-12-02 1998-06-02 Dale Electronics, Inc. Low profile inductor/transformer component

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914652A (en) * 1971-11-17 1975-10-21 Philips Corp Color television display apparatus provided with a modulator for generating a correction current for correcting deflection errors
DE4124509A1 (de) * 1991-07-24 1993-01-28 Zielinski Adolf Herbert Astor Transformator fuer elektrische energie
US5760669A (en) * 1994-12-02 1998-06-02 Dale Electronics, Inc. Low profile inductor/transformer component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111105925A (zh) * 2018-10-27 2020-05-05 杨勇 基于去磁电感滤波磁路的高压直流输电线感应取能装置及方法
CN111105925B (zh) * 2018-10-27 2021-12-28 杨勇 基于去磁电感滤波磁路的高压直流输电线感应取能装置及方法

Also Published As

Publication number Publication date
DE50214897D1 (de) 2011-03-17
EP1399934A1 (de) 2004-03-24
EP1399934B1 (de) 2011-02-02
ATE497629T1 (de) 2011-02-15
DK1399934T3 (da) 2011-04-18
WO2003003391A1 (de) 2003-01-09
JP2004531090A (ja) 2004-10-07

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