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EP1076345A3 - Variables induktives Element - Google Patents

Variables induktives Element Download PDF

Info

Publication number
EP1076345A3
EP1076345A3 EP00402278A EP00402278A EP1076345A3 EP 1076345 A3 EP1076345 A3 EP 1076345A3 EP 00402278 A EP00402278 A EP 00402278A EP 00402278 A EP00402278 A EP 00402278A EP 1076345 A3 EP1076345 A3 EP 1076345A3
Authority
EP
European Patent Office
Prior art keywords
inductance element
variable inductance
conductor pattern
pattern
inductor
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Withdrawn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
EP00402278A
Other languages
English (en)
French (fr)
Other versions
EP1076345A2 (de
Inventor
Naoki Murata Manufac. Co. Ltd. Iida
Masahiko Murata Manufac. Co. Ltd. Kawaguchi
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of EP1076345A2 publication Critical patent/EP1076345A2/de
Publication of EP1076345A3 publication Critical patent/EP1076345A3/de
Withdrawn legal-status Critical Current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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/0006—Printed inductances
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/0006—Printed inductances
    • H01F2017/0073—Printed inductances with a special conductive pattern, e.g. flat spiral
    • 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
    • H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
    • H01F2021/125—Printed variable inductor with taps, e.g. for VCO
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)
EP00402278A 1999-08-12 2000-08-11 Variables induktives Element Withdrawn EP1076345A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22887999 1999-08-12
JP11228879A JP2001052927A (ja) 1999-08-12 1999-08-12 可変インダクタンス素子

Publications (2)

Publication Number Publication Date
EP1076345A2 EP1076345A2 (de) 2001-02-14
EP1076345A3 true EP1076345A3 (de) 2001-03-07

Family

ID=16883305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00402278A Withdrawn EP1076345A3 (de) 1999-08-12 2000-08-11 Variables induktives Element

Country Status (4)

Country Link
EP (1) EP1076345A3 (de)
JP (1) JP2001052927A (de)
KR (1) KR100370513B1 (de)
TW (1) TW451229B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3307382B2 (ja) * 2000-03-07 2002-07-24 株式会社村田製作所 可変インダクタンス素子およびその製造方法
WO2023008531A1 (ja) * 2021-07-30 2023-02-02 住友電工プリントサーキット株式会社 プリント配線板

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619613A (en) * 1979-07-25 1981-02-24 Mitsubishi Electric Corp Manufacture of inductance element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619613A (en) * 1979-07-25 1981-02-24 Mitsubishi Electric Corp Manufacture of inductance element

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 070 (E - 056) 12 May 1981 (1981-05-12) *

Also Published As

Publication number Publication date
EP1076345A2 (de) 2001-02-14
KR100370513B1 (ko) 2003-01-29
KR20010021286A (ko) 2001-03-15
TW451229B (en) 2001-08-21
JP2001052927A (ja) 2001-02-23

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