GB1379490A - High frequency inductance coils - Google Patents

High frequency inductance coils

Info

Publication number
GB1379490A
GB1379490A GB5955172A GB5955172A GB1379490A GB 1379490 A GB1379490 A GB 1379490A GB 5955172 A GB5955172 A GB 5955172A GB 5955172 A GB5955172 A GB 5955172A GB 1379490 A GB1379490 A GB 1379490A
Authority
GB
United Kingdom
Prior art keywords
coil
high frequency
core component
core
component
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.)
Expired
Application number
GB5955172A
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.)
Siemens AG
Original Assignee
Siemens AG
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 DE19722218135 external-priority patent/DE2218135C3/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1379490A publication Critical patent/GB1379490A/en
Expired 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
    • H01F17/043—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
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • H01F2027/2819—Planar transformers with printed windings, e.g. surrounded by two cores and to be mounted on printed circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

1379490 Transformers SIEMENS AG 22 Dec 1972 [29 Dec 1971 14 April 1972] 59551/72 Heading HIT A high frequency induction having a ferrite core comprises a cylindrical core component 1, displaceable through a central bore 2 in a first core component 3 to form a variable air gap d with an upstanding element 6 of a second core component 7, said element 6 being surrounded by a flat coil 8. Each turn of said coil (Fig. 1, not shown) is a circle interrupted by a gap, adjacent turns being connected by radial parts. The coil plane is parallel to and distant from the end face of core element 6 by a distance related to the air gap and may be a printed circuit or formed by thicklayer or thin-layer techniques on a substrate body or by punching or etching from sheet metal, and may be silver plated. Component 3 may also be cup or bell-shaped.
GB5955172A 1971-12-29 1972-12-22 High frequency inductance coils Expired GB1379490A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7149293 1971-12-29
DE19722218135 DE2218135C3 (en) 1972-04-14 1972-04-14 High-frequency coil with an adjustable ferrite bowl

Publications (1)

Publication Number Publication Date
GB1379490A true GB1379490A (en) 1975-01-02

Family

ID=25763071

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5955172A Expired GB1379490A (en) 1971-12-29 1972-12-22 High frequency inductance coils

Country Status (6)

Country Link
US (1) US3855561A (en)
FR (1) FR2179710B1 (en)
GB (1) GB1379490A (en)
IT (1) IT972614B (en)
NL (1) NL7217744A (en)
SE (1) SE381364B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1036092C (en) * 2008-10-21 2010-04-22 Tetradon B V METHOD AND DEVICE FOR A MODULAR BUILT-IN TRANSFORMER

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4766906A (en) * 1981-05-06 1988-08-30 Ko Pen Wang Bronchoscopic needle assembly
US4532935A (en) * 1982-11-01 1985-08-06 Wang Ko P Bronchoscopic needle assembly
JPH02122410A (en) * 1988-10-31 1990-05-10 Yamaha Corp Thin film magnetic head
US6650217B1 (en) * 1997-03-07 2003-11-18 Koninklijke Philips Electronics N.V. Low profile magnetic component with planar winding structure having reduced conductor loss
US6569375B1 (en) * 2000-04-11 2003-05-27 Apex Medical Technologies, Inc. Vulcanization of dip-molded rubber articles with molten media baths
US6501362B1 (en) 2000-11-28 2002-12-31 Umec Usa, Inc. Ferrite core
US7508290B2 (en) * 2002-07-19 2009-03-24 Siemens Aktiengesellschaft Inductive component and use of said component
JP2004186628A (en) * 2002-12-06 2004-07-02 Koito Mfg Co Ltd Transformer
US7432793B2 (en) * 2005-12-19 2008-10-07 Bose Corporation Amplifier output filter having planar inductor
US7332993B1 (en) 2007-04-10 2008-02-19 Bose Corporation Planar transformer having fractional windings
EP2715334B1 (en) 2011-05-25 2020-04-08 Helmut Fischer GmbH Measuring probe for measuring the thickness of thin layers
JP6206654B2 (en) 2013-08-30 2017-10-04 セイコーエプソン株式会社 Liquid ejection device and head unit
JP6206655B2 (en) * 2013-08-30 2017-10-04 セイコーエプソン株式会社 Liquid ejection device and head unit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1017348A (en) * 1911-05-19 1912-02-13 Thomas E Murray Reactance-coil.
CH223151A (en) * 1941-01-22 1942-08-31 Lorenz C Ag High frequency coil.
US2476854A (en) * 1945-10-02 1949-07-19 Rca Corp Transformer
US2451026A (en) * 1945-10-02 1948-10-12 Rca Corp Television system
US2911605A (en) * 1956-10-02 1959-11-03 Monroe Calculating Machine Printed circuitry
US2921280A (en) * 1957-05-13 1960-01-12 Sperry Rand Corp Variable coupling transformer device
DE1234315B (en) * 1963-07-30 1967-02-16 Siemens Ag Adjustable electrical coil with a cup core
GB1180923A (en) * 1966-02-21 1970-02-11 Plessey Co Ltd Improvements relating to Electric Coil Assemblies.
US3536877A (en) * 1968-03-14 1970-10-27 Gen Electric Wafer construction for a switch tuner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1036092C (en) * 2008-10-21 2010-04-22 Tetradon B V METHOD AND DEVICE FOR A MODULAR BUILT-IN TRANSFORMER

Also Published As

Publication number Publication date
SE381364B (en) 1975-12-01
IT972614B (en) 1974-05-31
FR2179710A1 (en) 1973-11-23
FR2179710B1 (en) 1977-04-08
NL7217744A (en) 1973-07-03
US3855561A (en) 1974-12-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee