EP1212774A4 - Laser gapping of magnetic cores - Google Patents

Laser gapping of magnetic cores

Info

Publication number
EP1212774A4
EP1212774A4 EP00905805A EP00905805A EP1212774A4 EP 1212774 A4 EP1212774 A4 EP 1212774A4 EP 00905805 A EP00905805 A EP 00905805A EP 00905805 A EP00905805 A EP 00905805A EP 1212774 A4 EP1212774 A4 EP 1212774A4
Authority
EP
European Patent Office
Prior art keywords
gapping
laser
magnetic cores
cores
magnetic
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Withdrawn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
EP00905805A
Other languages
German (de)
French (fr)
Other versions
EP1212774A1 (en
Inventor
Larry D Rund
Richard P Hewitt
Stuart O Sigafoos
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.)
DATATRONIC DISTRIBUTION Inc
DATATRONIC DISTRIB Inc
Original Assignee
DATATRONIC DISTRIBUTION Inc
DATATRONIC DISTRIB 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
Priority claimed from US09/310,025 external-priority patent/US6243940B1/en
Application filed by DATATRONIC DISTRIBUTION Inc, DATATRONIC DISTRIB Inc filed Critical DATATRONIC DISTRIBUTION Inc
Publication of EP1212774A1 publication Critical patent/EP1212774A1/en
Publication of EP1212774A4 publication Critical patent/EP1212774A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)
EP00905805A 1999-03-11 2000-01-31 Laser gapping of magnetic cores Withdrawn EP1212774A4 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US310025 1981-10-13
US12381799P 1999-03-11 1999-03-11
US123817P 1999-03-11
US09/310,025 US6243940B1 (en) 1999-05-11 1999-05-11 Laser gapping of magnetic cores
PCT/US2000/002231 WO2000054302A1 (en) 1999-03-11 2000-01-31 Laser gapping of magnetic cores

Publications (2)

Publication Number Publication Date
EP1212774A1 EP1212774A1 (en) 2002-06-12
EP1212774A4 true EP1212774A4 (en) 2002-08-14

Family

ID=26821930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00905805A Withdrawn EP1212774A4 (en) 1999-03-11 2000-01-31 Laser gapping of magnetic cores

Country Status (4)

Country Link
EP (1) EP1212774A4 (en)
AU (1) AU2743000A (en)
HK (1) HK1049230A1 (en)
WO (1) WO2000054302A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6251838B1 (en) * 2017-09-11 2017-12-20 高周波熱錬株式会社 Output current synthesizer and power supply device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55110017A (en) * 1979-02-15 1980-08-25 Matsushita Electric Works Ltd Electromagnetic unit
EP0167293A1 (en) * 1984-06-05 1986-01-08 Standex International Corporation Trimmable coil assembly and method
GB2284102A (en) * 1993-11-18 1995-05-24 Anthony James Doyle Inductors
EP0775765A2 (en) * 1995-11-27 1997-05-28 Vlt Corporation Plating permeable cores

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3238484A (en) * 1963-05-16 1966-03-01 Cambridge Thermionic Corp D-cores with associated windings for producing high q
US3548492A (en) * 1967-09-29 1970-12-22 Texas Instruments Inc Method of adjusting inductive devices
US4224500A (en) * 1978-11-20 1980-09-23 Western Electric Company, Inc. Method for adjusting electrical devices
US5839185A (en) * 1997-02-26 1998-11-24 Sundstrand Corporation Method of fabricating a magnetic flux concentrating core

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55110017A (en) * 1979-02-15 1980-08-25 Matsushita Electric Works Ltd Electromagnetic unit
EP0167293A1 (en) * 1984-06-05 1986-01-08 Standex International Corporation Trimmable coil assembly and method
GB2284102A (en) * 1993-11-18 1995-05-24 Anthony James Doyle Inductors
EP0775765A2 (en) * 1995-11-27 1997-05-28 Vlt Corporation Plating permeable cores

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 004, no. 162 (E - 033) 12 November 1980 (1980-11-12) *
See also references of WO0054302A1 *

Also Published As

Publication number Publication date
HK1049230A1 (en) 2003-05-02
AU2743000A (en) 2000-09-28
EP1212774A1 (en) 2002-06-12
WO2000054302A1 (en) 2000-09-14

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