EP1540675A4 - Controlled inductance device and method - Google Patents

Controlled inductance device and method

Info

Publication number
EP1540675A4
EP1540675A4 EP02775837A EP02775837A EP1540675A4 EP 1540675 A4 EP1540675 A4 EP 1540675A4 EP 02775837 A EP02775837 A EP 02775837A EP 02775837 A EP02775837 A EP 02775837A EP 1540675 A4 EP1540675 A4 EP 1540675A4
Authority
EP
European Patent Office
Prior art keywords
inductance device
controlled inductance
controlled
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.)
Withdrawn
Application number
EP02775837A
Other languages
German (de)
French (fr)
Other versions
EP1540675A1 (en
Inventor
Frederick J Kiko
Lucian Scripca
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.)
Pulse Electronics Inc
Original Assignee
Pulse Engineering Inc
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 Pulse Engineering Inc filed Critical Pulse Engineering Inc
Publication of EP1540675A1 publication Critical patent/EP1540675A1/en
Publication of EP1540675A4 publication Critical patent/EP1540675A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/045—Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/043—Fixed inductances of the signal type  with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole
    • H01F21/065—Measures for obtaining a desired relation between the position of the core and the inductance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/041—Printed circuit coils
    • H01F41/045—Trimming

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Filters And Equalizers (AREA)
EP02775837A 2002-09-17 2002-09-17 Controlled inductance device and method Withdrawn EP1540675A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/029480 WO2004027793A1 (en) 2002-09-17 2002-09-17 Controlled inductance device and method

Publications (2)

Publication Number Publication Date
EP1540675A1 EP1540675A1 (en) 2005-06-15
EP1540675A4 true EP1540675A4 (en) 2009-11-11

Family

ID=32028450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02775837A Withdrawn EP1540675A4 (en) 2002-09-17 2002-09-17 Controlled inductance device and method

Country Status (4)

Country Link
EP (1) EP1540675A4 (en)
CN (1) CN1695212A (en)
AU (1) AU2002341687A1 (en)
WO (1) WO2004027793A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000223419A (en) 1998-06-30 2000-08-11 Sony Corp Method of forming single crystal silicon layer, and semiconductor device and manufacture thereof
US8237530B2 (en) * 2009-08-10 2012-08-07 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
EP1901539A1 (en) * 2006-09-13 2008-03-19 Ycl Electronics Co., Ltd. DSL splitter
EP2175667B1 (en) * 2008-10-10 2014-01-01 Alcatel Lucent Universal ISDN/POTS splitter
CN102301435B (en) * 2009-07-15 2014-12-24 脉冲电子(新加坡)私人有限公司 Substrate Inductive Devices And Methods
US9019063B2 (en) 2009-08-10 2015-04-28 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
US9584187B2 (en) 2012-10-15 2017-02-28 Broadcom Corporation Non-interruptive filtering of transmission line communications

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3546571A (en) * 1968-06-21 1970-12-08 Varo Constant voltage ferroresonant transformer utilizing unequal area core structure
EP0005386A1 (en) * 1978-04-06 1979-11-14 SAT (Société Anonyme de Télécommunications),Société Anonyme Inductance with a ferrite pot core and method to adjust the reluctance of the core
EP0757364A2 (en) * 1995-08-01 1997-02-05 Deutsche Thomson-Brandt Gmbh Transformer
JPH11195541A (en) * 1998-01-06 1999-07-21 Fuji Elelctrochem Co Ltd Linearity coil
US6212259B1 (en) * 1998-11-19 2001-04-03 Excelsus Technologies, Inc. Impedance blocking filter circuit
US20020033747A1 (en) * 2000-08-04 2002-03-21 Tokin Corporation Inductance component having a permanent magnet in the vicinity of a magnetic gap

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4138636A (en) * 1977-06-13 1979-02-06 Zenith Radio Corporation Voltage regulating transformer having EI laminations and two center legs of different reluctance
US4874990A (en) * 1988-08-22 1989-10-17 Qse Sales & Management, Inc. Notch gap transformer and lighting system incorporating same
US5289359A (en) * 1991-02-13 1994-02-22 Charles Industries, Limited DC-DC power converter including sensing means for providing an output when the reserve power of the converter falls below a predetermined amount for a given input voltage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3546571A (en) * 1968-06-21 1970-12-08 Varo Constant voltage ferroresonant transformer utilizing unequal area core structure
EP0005386A1 (en) * 1978-04-06 1979-11-14 SAT (Société Anonyme de Télécommunications),Société Anonyme Inductance with a ferrite pot core and method to adjust the reluctance of the core
EP0757364A2 (en) * 1995-08-01 1997-02-05 Deutsche Thomson-Brandt Gmbh Transformer
JPH11195541A (en) * 1998-01-06 1999-07-21 Fuji Elelctrochem Co Ltd Linearity coil
US6212259B1 (en) * 1998-11-19 2001-04-03 Excelsus Technologies, Inc. Impedance blocking filter circuit
US20020033747A1 (en) * 2000-08-04 2002-03-21 Tokin Corporation Inductance component having a permanent magnet in the vicinity of a magnetic gap

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004027793A1 *

Also Published As

Publication number Publication date
CN1695212A (en) 2005-11-09
WO2004027793A1 (en) 2004-04-01
AU2002341687A1 (en) 2004-04-08
EP1540675A1 (en) 2005-06-15

Similar Documents

Publication Publication Date Title
AU2003244310A8 (en) Inter-authentication method and device
EP1528658A4 (en) Coil forming device and coil forming method
HK1081891A1 (en) Communication device and communication method
AU2003245712A8 (en) Infusion device and method thereof
EP1361604A4 (en) Device and method for treatment
AU2003223514A8 (en) Lighting device and method
EP1368863A4 (en) Securing device and method
GB0301775D0 (en) Device and method for 3Dimaging
EP1591875A4 (en) Handwriting-input device and method
EP1643907A4 (en) Lumen-measuring devices and method
EP1622532A4 (en) Device and method for dacryocystorhinostomy
EP1679739A4 (en) Sheet-peeling device and method
EP1699041A4 (en) Device control device and device control method
GB0318417D0 (en) Method and device
EP1492116A4 (en) Editing method and device
GB0313032D0 (en) Device and method
EP1542311A4 (en) Control device and control method
HK1064159A1 (en) File-delivering method and file-delivering device
GB0217248D0 (en) Device and method
EP1540675A4 (en) Controlled inductance device and method
GB0223717D0 (en) Cellular device and method
GB0320773D0 (en) Method and device
GB0120612D0 (en) Method and device
GB0421349D0 (en) Device and method for preventing speeding
GB0300764D0 (en) Device and method

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

17P Request for examination filed

Effective date: 20050316

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

DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: H01F 3/14 20060101ALI20090903BHEP

Ipc: H01F 17/04 20060101AFI20090903BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20090909

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20110215

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: 20110628