GB771701A - Inductance coils - Google Patents

Inductance coils

Info

Publication number
GB771701A
GB771701A GB57555A GB57555A GB771701A GB 771701 A GB771701 A GB 771701A GB 57555 A GB57555 A GB 57555A GB 57555 A GB57555 A GB 57555A GB 771701 A GB771701 A GB 771701A
Authority
GB
United Kingdom
Prior art keywords
ribbons
core
jan
joining
wires
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
GB57555A
Inventor
Geoffrey Stephen Evans
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.)
Murphy Radio Ltd
Original Assignee
Murphy Radio 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 Murphy Radio Ltd filed Critical Murphy Radio Ltd
Priority to GB57555A priority Critical patent/GB771701A/en
Publication of GB771701A publication Critical patent/GB771701A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01F2027/2814—Printed windings with only part of the coil or of the winding in the printed circuit board, e.g. the remaining coil or winding sections can be made of wires or sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

771,701. Inductors. MURPHY RADIO, Ltd. Jan. 9, 1956 [Jan. 7, 1955], No. 575/55. Class 38 (2). A variable inductor comprises a winding composed in part of a number of parallel ribbons 1 of metal adherent to an insulating base 2 and in part of wires 4 joining the ribbons into a continuous coil a magnetic dust core 6 being provided, together with means for moving it into and out of the coil. The wires 4 joining the ends of the ribbons 1 are moulded into a cast resin block 5, the core 6 being arranged to be moved in an axial hole in the block by a screw and nut mechanism 7, 8. In another embodiment two sets of parallel ribbons are provided and are placed one above the other and joined by straight pieces of bare wire on either side, the magnetic core being rectangular in shape and moving between the two sets of ribbons.
GB57555A 1955-01-07 1955-01-07 Inductance coils Expired GB771701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB57555A GB771701A (en) 1955-01-07 1955-01-07 Inductance coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB57555A GB771701A (en) 1955-01-07 1955-01-07 Inductance coils

Publications (1)

Publication Number Publication Date
GB771701A true GB771701A (en) 1957-04-03

Family

ID=9706800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57555A Expired GB771701A (en) 1955-01-07 1955-01-07 Inductance coils

Country Status (1)

Country Link
GB (1) GB771701A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344237A (en) * 1967-09-26 Desposited film transducing apparatus and method op producing the apparatus
US3497859A (en) * 1968-05-28 1970-02-24 Stackpole Carbon Co Electrical resistors for printed circuits
DE2148475A1 (en) * 1971-09-29 1973-04-05 Licentia Gmbh HIGH FREQUENCY COIL FIXED ON AN INSULATING PLATE WITH AT LEAST ONE TAP
US4249229A (en) * 1978-08-28 1981-02-03 Litton Systems, Inc. Transformer having novel multiple winding and support structure and method of making same
USRE31704E (en) * 1978-08-28 1984-10-09 Litton Systems, Inc. Transformer having novel multiple winding and support structure and method of making same
EP0134950A2 (en) * 1983-08-13 1985-03-27 Richard Hirschmann GmbH & Co. High frequency directional coupler comprising a tubular core with printed coils
FR2556493A1 (en) * 1983-12-09 1985-06-14 Inf Milit Spatiale Aeronaut Electromagnetic winding and transformer containing such a winding
US4536733A (en) * 1982-09-30 1985-08-20 Sperry Corporation High frequency inverter transformer for power supplies
EP0175069A1 (en) * 1984-09-20 1986-03-26 Vacuumschmelze GmbH Process for making an inductive element with a wound toroidal core
US4737903A (en) * 1983-04-28 1988-04-12 Canon Kabushiki Kaisha Electronic apparatus
WO1991015021A1 (en) * 1990-03-29 1991-10-03 SIEMENS AKTIENGESELLSCHAFT öSTERREICH Inductive circuit element for assembly of printed circuit broads
US5055816A (en) * 1989-06-26 1991-10-08 Motorola, Inc. Method for fabricating an electronic device
US5461353A (en) * 1994-08-30 1995-10-24 Motorola, Inc. Printed circuit board inductor
US5828283A (en) * 1995-12-31 1998-10-27 Daewoo Electronics Co., Ltd. Apparatus for connecting primary conductive lines of flexible transformer
DE102011118288A1 (en) * 2011-11-10 2013-05-16 Epcos Ag Cap for covering inductive component of transformer, has contacting elements for receiving and measuring electrical signal, and lid which is made of material shaped in preset manner such that contacting elements are maintained on lid

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344237A (en) * 1967-09-26 Desposited film transducing apparatus and method op producing the apparatus
US3497859A (en) * 1968-05-28 1970-02-24 Stackpole Carbon Co Electrical resistors for printed circuits
DE2148475A1 (en) * 1971-09-29 1973-04-05 Licentia Gmbh HIGH FREQUENCY COIL FIXED ON AN INSULATING PLATE WITH AT LEAST ONE TAP
US4249229A (en) * 1978-08-28 1981-02-03 Litton Systems, Inc. Transformer having novel multiple winding and support structure and method of making same
USRE31704E (en) * 1978-08-28 1984-10-09 Litton Systems, Inc. Transformer having novel multiple winding and support structure and method of making same
US4536733A (en) * 1982-09-30 1985-08-20 Sperry Corporation High frequency inverter transformer for power supplies
US4737903A (en) * 1983-04-28 1988-04-12 Canon Kabushiki Kaisha Electronic apparatus
EP0134950A2 (en) * 1983-08-13 1985-03-27 Richard Hirschmann GmbH & Co. High frequency directional coupler comprising a tubular core with printed coils
EP0134950A3 (en) * 1983-08-13 1986-12-17 Richard Hirschmann Radiotechnisches Werk High frequency directional coupler comprising a tubular core with printed coils
FR2556493A1 (en) * 1983-12-09 1985-06-14 Inf Milit Spatiale Aeronaut Electromagnetic winding and transformer containing such a winding
EP0175069A1 (en) * 1984-09-20 1986-03-26 Vacuumschmelze GmbH Process for making an inductive element with a wound toroidal core
US5055816A (en) * 1989-06-26 1991-10-08 Motorola, Inc. Method for fabricating an electronic device
WO1991015021A1 (en) * 1990-03-29 1991-10-03 SIEMENS AKTIENGESELLSCHAFT öSTERREICH Inductive circuit element for assembly of printed circuit broads
US5461353A (en) * 1994-08-30 1995-10-24 Motorola, Inc. Printed circuit board inductor
US5828283A (en) * 1995-12-31 1998-10-27 Daewoo Electronics Co., Ltd. Apparatus for connecting primary conductive lines of flexible transformer
DE102011118288A1 (en) * 2011-11-10 2013-05-16 Epcos Ag Cap for covering inductive component of transformer, has contacting elements for receiving and measuring electrical signal, and lid which is made of material shaped in preset manner such that contacting elements are maintained on lid
DE102011118288B4 (en) 2011-11-10 2022-05-12 Tdk Electronics Ag Transformer with a cap for covering an inductive component

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