GB679151A - Improvements in or relating to electric resistances - Google Patents

Improvements in or relating to electric resistances

Info

Publication number
GB679151A
GB679151A GB284950A GB284950A GB679151A GB 679151 A GB679151 A GB 679151A GB 284950 A GB284950 A GB 284950A GB 284950 A GB284950 A GB 284950A GB 679151 A GB679151 A GB 679151A
Authority
GB
United Kingdom
Prior art keywords
coil
resistance
feb
relating
current
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
GB284950A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB679151A publication Critical patent/GB679151A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/001—Mass resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
    • H01B1/08—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances oxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/022—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/022—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances
    • H01C7/023—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances containing oxides or oxidic compounds, e.g. ferrites
    • H01C7/025—Perovskites, e.g. titanates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
    • H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds
    • H01C7/045—Perovskites, e.g. titanates

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Non-Adjustable Resistors (AREA)

Abstract

679,151. Non -contact making relays. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 3, 1950 [Feb. 8, 1949], No. 2849/50. Class 40 (iv). [Also in Groups XXXV and XXXVI] A resistance made of semi-conducting material having a Perovskite structure (see Group XXXVI) is surrounded by a coil and the conductivity of the resistance changes in dependence on the strength of the magnetic field developed by the coil. Thus, with the resistance in one circuit and the coil in another the current through the resistance may be controlled by varying the current through the coil.
GB284950A 1949-02-08 1950-02-03 Improvements in or relating to electric resistances Expired GB679151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL77388T 1949-02-08

Publications (1)

Publication Number Publication Date
GB679151A true GB679151A (en) 1952-09-10

Family

ID=31944902

Family Applications (1)

Application Number Title Priority Date Filing Date
GB284950A Expired GB679151A (en) 1949-02-08 1950-02-03 Improvements in or relating to electric resistances

Country Status (6)

Country Link
BE (1) BE493785A (en)
CH (1) CH286248A (en)
DE (1) DE808851C (en)
FR (1) FR1010901A (en)
GB (1) GB679151A (en)
NL (1) NL77388C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048985B (en) * 1952-06-25 1959-01-22 Siemens Ag Voltage-dependent resistance
DE102016107931A1 (en) 2016-04-28 2017-11-02 Epcos Ag Electronic component for inrush current limiting and use of an electronic component

Also Published As

Publication number Publication date
CH286248A (en) 1952-10-15
NL77388C (en) 1955-02-15
FR1010901A (en) 1952-06-17
BE493785A (en) 1950-06-01
DE808851C (en) 1951-07-19

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