EP1075002A3 - Variable inductance coil device - Google Patents

Variable inductance coil device Download PDF

Info

Publication number
EP1075002A3
EP1075002A3 EP00116632A EP00116632A EP1075002A3 EP 1075002 A3 EP1075002 A3 EP 1075002A3 EP 00116632 A EP00116632 A EP 00116632A EP 00116632 A EP00116632 A EP 00116632A EP 1075002 A3 EP1075002 A3 EP 1075002A3
Authority
EP
European Patent Office
Prior art keywords
cores
size
coil device
inductance coil
variable inductance
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
Application number
EP00116632A
Other languages
German (de)
French (fr)
Other versions
EP1075002A2 (en
EP1075002B1 (en
Inventor
Bernhard Apsner
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.)
Tridonicatco GmbH and Co KG
Original Assignee
Tridonic Bauelemente GmbH
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 Tridonic Bauelemente GmbH filed Critical Tridonic Bauelemente GmbH
Publication of EP1075002A2 publication Critical patent/EP1075002A2/en
Publication of EP1075002A3 publication Critical patent/EP1075002A3/en
Application granted granted Critical
Publication of EP1075002B1 publication Critical patent/EP1075002B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • 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
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/326—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures specifically adapted for discharge lamp ballasts

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulating Of Coils (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

The coil or transformer consists of a reed-like coil body (1) carrying a winding, and having winding chamber walls (3) at its end, and respectively two E-shaped cores (10a, 10b) of a first size put on the coil body. The middle legs (11) of the cores immerse in the reed aperture (2), and both outer legs (12a, 12b) lie with their insides, at least partially on the winding chamber walls. The walls comprise extrusions (4) for supporting the outside legs of E-shaped cores of a second size, whose leg distance is smaller than that of the cores of the first size.
EP00116632A 1999-08-02 2000-08-01 Variable inductance coil device Expired - Lifetime EP1075002B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29913485U 1999-08-02
DE29913485U DE29913485U1 (en) 1999-08-02 1999-08-02 Variable inductance coil

Publications (3)

Publication Number Publication Date
EP1075002A2 EP1075002A2 (en) 2001-02-07
EP1075002A3 true EP1075002A3 (en) 2002-03-20
EP1075002B1 EP1075002B1 (en) 2008-04-23

Family

ID=8076977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116632A Expired - Lifetime EP1075002B1 (en) 1999-08-02 2000-08-01 Variable inductance coil device

Country Status (3)

Country Link
EP (1) EP1075002B1 (en)
AT (1) ATE393457T1 (en)
DE (2) DE29913485U1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1936125A1 (en) * 1969-07-16 1971-01-28 May & Christe Gmbh Winding structure for small transformers and choke coils
GB2216729A (en) * 1988-03-08 1989-10-11 Kijima Co Ltd A compact transformer
US5010314A (en) * 1990-03-30 1991-04-23 Multisource Technology Corp. Low-profile planar transformer for use in off-line switching power supplies
EP0590741A1 (en) * 1992-09-28 1994-04-06 Siemens Aktiengesellschaft Transformer or choke
US5745021A (en) * 1993-03-12 1998-04-28 Matsushita Electric Industrial Co., Ltd. Line filter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3612209A1 (en) * 1986-04-11 1987-10-22 Thomson Brandt Gmbh Transformer having a core which consists of two outer limbs and one centre limb
US4857878A (en) * 1988-01-19 1989-08-15 Eng Jr Benjamin Modular high frequency power transformer
DE9301086U1 (en) * 1993-01-27 1993-03-25 Alcatel SEL Aktiengesellschaft, 7000 Stuttgart Coil body
DE19641388C2 (en) * 1996-09-27 2001-01-18 Siemens Ag Winding body for a transformer or a choke
DE19641387C2 (en) * 1996-09-27 2000-09-07 Siemens Ag Winding body for a transformer or a choke

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1936125A1 (en) * 1969-07-16 1971-01-28 May & Christe Gmbh Winding structure for small transformers and choke coils
GB2216729A (en) * 1988-03-08 1989-10-11 Kijima Co Ltd A compact transformer
US5010314A (en) * 1990-03-30 1991-04-23 Multisource Technology Corp. Low-profile planar transformer for use in off-line switching power supplies
EP0590741A1 (en) * 1992-09-28 1994-04-06 Siemens Aktiengesellschaft Transformer or choke
US5745021A (en) * 1993-03-12 1998-04-28 Matsushita Electric Industrial Co., Ltd. Line filter

Also Published As

Publication number Publication date
EP1075002A2 (en) 2001-02-07
DE29913485U1 (en) 2000-12-07
EP1075002B1 (en) 2008-04-23
DE50015116D1 (en) 2008-06-05
ATE393457T1 (en) 2008-05-15

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