EP0185149A1 - Bobine d'accumulation - Google Patents
Bobine d'accumulation Download PDFInfo
- 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- Withdrawn
Links
Images
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)
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)
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)
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)
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)
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 |
-
1984
- 1984-09-24 DE DE19848428108U patent/DE8428108U1/de not_active Expired
-
1985
- 1985-08-02 US US06/761,649 patent/US4728918A/en not_active Expired - Fee Related
- 1985-09-19 EP EP85111867A patent/EP0185149A1/fr not_active Withdrawn
Patent Citations (4)
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)
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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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 CH DE FR GB IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19860728 |
|
17Q | First examination report despatched |
Effective date: 19871027 |
|
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: 19880307 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: NEUSSER, PAUL, DR. Inventor name: ROESSLER, WERNER |