EP0185149A1 - Bobine d'accumulation - Google Patents

Bobine d'accumulation Download PDF

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Publication number
EP0185149A1
EP0185149A1 EP85111867A EP85111867A EP0185149A1 EP 0185149 A1 EP0185149 A1 EP 0185149A1 EP 85111867 A EP85111867 A EP 85111867A EP 85111867 A EP85111867 A EP 85111867A EP 0185149 A1 EP0185149 A1 EP 0185149A1
Authority
EP
European Patent Office
Prior art keywords
core
air gap
end faces
adjacent end
areas
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Withdrawn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
EP85111867A
Other languages
German (de)
English (en)
Inventor
Paul Dr. Neusser
Werner Rössler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0185149A1 publication Critical patent/EP0185149A1/fr
Withdrawn legal-status Critical Current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
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
    • H01F38/023—Adaptations of transformers or inductances for specific applications or functions for non-linear operation of inductances

Definitions

  • the invention relates to a storage inductor, in particular for flux converters and buck converters, with a magnetizable core, in particular shell core, E core, RM core and U core, with an air gap formed between adjacent end faces of core parts
  • Storage chokes intended for flux converters and buck converters must have a non-linear DC bias characteristic.
  • the inductance should be as high as possible, eg 1 50 pH and at nominal load; ie around 1 to 10 A much lower, namely 30 ⁇ H for example. This requirement cannot be met with ferrite cores with a constant air gap, ie with a constant air gap height.
  • the present invention has for its object to provide a storage inductor of the type mentioned, which meets the requirements shown with regard to the non-linear DC bias characteristics despite little effort.
  • the invention provides for a storage choke according to the preamble of the claim that the adjacent end faces e.g. the central slug of shell core, RM core and E core, are aligned in some areas without an air gap and in some areas with an air gap of changing air gap height.
  • 1, 2 has a ferrite RM core with core halves 1, 2, which are formed with central slugs 5, 6. With 3 a coil body pushed onto the middle slugs 5, 6 is designated, which carries a winding 4 in its winding space.
  • the central slug 5 On its front-side part facing the central slug 6, the central slug 5 is shaped like a truncated cone. With its surface 7, this truncated cone lies on the end face of the central slug 6 without an air gap.
  • the angle of the truncated cone can be between 5 and 60 °, the angle ⁇ and the “contact surface” 7 being chosen depending on the desired DC bias characteristic.
  • 1, 2 shows, for example, the curve c in FIG. 3.
  • the inductance lies in the desired range of approx. 150 pH and remains at a value of approx. 30 over a large current range pH.
  • the mutually facing end parts for example the central slug of the cores, can also be shaped like a roof.
  • FIG. 4 shows an embodiment for this, in which 8 denotes the "flat" end face, which, so to speak, bears without air gap against the end face of the adjacent central panel facing it.
  • the "roof pitch” and the "x" width of the airless area are again selected depending on the desired DC bias characteristics. Examples of DC bias characteristics such as those at an angle of 15 ° and widths x of 1; 1.5; 3 or 4 mm are obtained, FIG. 5 shows

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Coils Or Transformers For Communication (AREA)
EP85111867A 1984-09-24 1985-09-19 Bobine d'accumulation Withdrawn EP0185149A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8428108U 1984-09-24
DE19848428108U DE8428108U1 (de) 1984-09-24 1984-09-24 Speicherdrossel

Publications (1)

Publication Number Publication Date
EP0185149A1 true EP0185149A1 (fr) 1986-06-25

Family

ID=6771017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111867A Withdrawn EP0185149A1 (fr) 1984-09-24 1985-09-19 Bobine d'accumulation

Country Status (3)

Country Link
US (1) US4728918A (fr)
EP (1) EP0185149A1 (fr)
DE (1) DE8428108U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004569A1 (fr) * 1991-08-23 1993-03-04 Robert Bosch Gmbh Dispositif pour le fonctionnement d'une lampe a decharge
EP0585650A1 (fr) * 1992-08-22 1994-03-09 Robert Bosch Gmbh Transducteur et son application

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4939600A (en) * 1989-01-05 1990-07-03 Micropolis Corporation Efficient head positioner power amplifier
DE69019033T2 (de) * 1989-02-27 1995-08-31 Tdk Corp Spulenvorrichtung.
DE19515226A1 (de) * 1995-04-28 1996-11-07 Thomson Brandt Gmbh Hochspannungstransformator für einen Fernsehempfänger
TR199902411A3 (tr) 1998-11-02 2000-06-21 Lincoln Global, Inc. Dogru akim kaynak makinasi için çikis bobini ve kullanma yöntemi
US8321449B2 (en) * 2007-01-22 2012-11-27 Jook Inc. Media rating
US7889026B2 (en) * 2008-01-08 2011-02-15 Harris Corporation Electronically variable inductor, associated tunable filter and methods
GB2463503A (en) * 2008-09-16 2010-03-17 Cambridge Semiconductor Ltd Crossed ridges in a gap of a ferrite core arrangement
CN102543370A (zh) * 2010-12-22 2012-07-04 旭丽电子(广州)有限公司 铁芯及电感器
TWI539473B (zh) * 2012-08-21 2016-06-21 乾坤科技股份有限公司 可變耦合電感器
FR3103624B1 (fr) 2019-11-21 2021-12-17 Commissariat Energie Atomique dispositif d’induction électromagnétique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2403114A1 (de) * 1974-01-23 1975-07-24 Licentia Gmbh Drossel als nichtlineare speicherdrossel
DE2848119A1 (de) * 1978-11-06 1980-05-14 Siemens Ag Getaktetes netzgeraet
DE3008861A1 (de) * 1980-03-07 1981-09-17 Siemens AG, 1000 Berlin und 8000 München Transformatorkern fuer einen gegentaktsaettigungsumrichter
DE3123006A1 (de) * 1981-06-10 1983-01-05 Ernst Roederstein Spezialfabrik für Kondensatoren GmbH, 8300 Landshut Transformator

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB449763A (en) * 1933-12-29 1936-06-30 Siemens Ag Improvements in and relating to high frequency coils provided with magnetisable coils
GB442849A (en) * 1934-05-11 1936-02-17 Ericsson Telefon Ab L M Improvements in inductance coils
US2823359A (en) * 1954-06-01 1958-02-11 Rca Corp Miniature intermediate-frequency transformer
FR1114143A (fr) * 1954-11-27 1956-04-09 Transformateur
FR1175256A (fr) * 1957-05-16 1959-03-23 Csf Bobines ajustables d'auto-inductance
US3631534A (en) * 1969-09-05 1971-12-28 Matsushita Electric Ind Co Ltd Variable inductance device
US3603864A (en) * 1969-12-31 1971-09-07 Nasa Current dependent filter inductance
GB1341038A (en) * 1970-05-08 1973-12-19 Thorn Automation Ltd Inductors
DE2203210A1 (de) * 1972-01-24 1973-08-02 Siemens Ag Transduktor
DE2209071A1 (de) * 1972-02-25 1973-08-30 Siemens Ag Abgleichbare elektrische spule, insbesondere fuer hybrid- und gedruckte schaltungen
US4150278A (en) * 1975-09-15 1979-04-17 Western Electric Company, Incorporated Methods of tuning inductive device by beam-machine altering a central air gap thereof
US4282567A (en) * 1976-10-26 1981-08-04 Texas Instruments Incorporated Modified power transformer for self-oscillating converter regulator power supply
DE2805387A1 (de) * 1978-02-09 1979-08-23 Blum Eisen & Metallind Eisenkern fuer transformatoren, drosselspulen, elektromotoren, generatoren o.dgl. elektrische maschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2403114A1 (de) * 1974-01-23 1975-07-24 Licentia Gmbh Drossel als nichtlineare speicherdrossel
DE2848119A1 (de) * 1978-11-06 1980-05-14 Siemens Ag Getaktetes netzgeraet
DE3008861A1 (de) * 1980-03-07 1981-09-17 Siemens AG, 1000 Berlin und 8000 München Transformatorkern fuer einen gegentaktsaettigungsumrichter
DE3123006A1 (de) * 1981-06-10 1983-01-05 Ernst Roederstein Spezialfabrik für Kondensatoren GmbH, 8300 Landshut Transformator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004569A1 (fr) * 1991-08-23 1993-03-04 Robert Bosch Gmbh Dispositif pour le fonctionnement d'une lampe a decharge
AU662755B2 (en) * 1991-08-23 1995-09-14 Robert Bosch Gmbh Device for operating a gas-discharge lamp
US5506479A (en) * 1991-08-23 1996-04-09 Robert Bosch Gmbh Device for operating a gas-discharge lamp
EP0585650A1 (fr) * 1992-08-22 1994-03-09 Robert Bosch Gmbh Transducteur et son application

Also Published As

Publication number Publication date
DE8428108U1 (de) 1985-01-03
US4728918A (en) 1988-03-01

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Inventor name: NEUSSER, PAUL, DR.

Inventor name: ROESSLER, WERNER