GB679151A - Improvements in or relating to electric resistances - Google Patents
Improvements in or relating to electric resistancesInfo
- 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
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.
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)
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 |
-
1949
- 1949-02-08 NL NL77388D patent/NL77388C/xx active
-
1950
- 1950-02-03 GB GB284950A patent/GB679151A/en not_active Expired
- 1950-02-05 DE DEN476A patent/DE808851C/en not_active Expired
- 1950-02-06 FR FR1010901D patent/FR1010901A/en not_active Expired
- 1950-02-06 CH CH286248D patent/CH286248A/en unknown
- 1950-02-08 BE BE493785D patent/BE493785A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE808851C (en) | 1951-07-19 |
BE493785A (en) | 1950-06-01 |
NL77388C (en) | 1955-02-15 |
CH286248A (en) | 1952-10-15 |
FR1010901A (en) | 1952-06-17 |
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