GB998413A - Improvements in variable impedance devices - Google Patents

Improvements in variable impedance devices

Info

Publication number
GB998413A
GB998413A GB21285/61A GB2128561A GB998413A GB 998413 A GB998413 A GB 998413A GB 21285/61 A GB21285/61 A GB 21285/61A GB 2128561 A GB2128561 A GB 2128561A GB 998413 A GB998413 A GB 998413A
Authority
GB
United Kingdom
Prior art keywords
resistor
june
phase
variable impedance
impedance devices
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
GB21285/61A
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.)
General Precision Inc
Original Assignee
General Precision Inc
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 General Precision Inc filed Critical General Precision Inc
Publication of GB998413A publication Critical patent/GB998413A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/162—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division using galvano- magnetic effects, e.g. Hall effect; using similar magnetic effects
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/18—Networks for phase shifting
    • H03H7/20—Two-port phase shifters providing an adjustable phase shift

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

998,413. Impedance networks. GENERAL PRECISION Inc. June 13, 1961 [June 13, 1960], No. 21285/61. Heading H3U. [Also in Divisions G4 and H1] A phase-shifting network comprises a bridge circuit including magnetically variable resistor 69. The resistor is on a common backing with an identical resistor 65 in a feed-back circuit which controls the current in coil 63 in the field of which the resistors are mounted. Thus the resistance of 69 which determines the phase of the constant amplitude output signal at terminal 72 is a function of the control signal X.
GB21285/61A 1960-06-13 1961-06-13 Improvements in variable impedance devices Expired GB998413A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35829A US3172032A (en) 1960-06-13 1960-06-13 Magneto-resistive device

Publications (1)

Publication Number Publication Date
GB998413A true GB998413A (en) 1965-07-14

Family

ID=21885022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21285/61A Expired GB998413A (en) 1960-06-13 1961-06-13 Improvements in variable impedance devices

Country Status (2)

Country Link
US (1) US3172032A (en)
GB (1) GB998413A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315204A (en) * 1967-04-18 Galvanomagnetic semiconductor device
GB1111331A (en) * 1964-04-24 1968-04-24 Seismograph Service England Correlation of variables
US3405355A (en) * 1965-02-26 1968-10-08 Navy Usa Thin film magnetoresistance magnetometer having a current path etched at an angle tothe axes of magnetization
US3400354A (en) * 1965-12-28 1968-09-03 Matsushita Electronics Corp Hall-effect device
US3497717A (en) * 1966-09-29 1970-02-24 Alfred W Barber Analog device for multiplying/dividing using photoconductive means
FR1602845A (en) * 1968-03-18 1971-02-01
US3581264A (en) * 1969-04-21 1971-05-25 Dale Electronics Method of creating variable electrical resistance and means for creating the same
US3995210A (en) * 1974-11-06 1976-11-30 General Electric Company Variable gain electronic current transformer
US3931566A (en) * 1974-12-10 1976-01-06 Northern Electric Company Limited Temperature compensated current sensing circuit for a power supply
US5404102A (en) * 1993-01-06 1995-04-04 General Motors Corporation Method and apparatus for electrically exciting a magneto-resistor device
JP2655106B2 (en) * 1994-12-07 1997-09-17 日本電気株式会社 Magnetoresistive sensor
US6225801B1 (en) * 1999-01-14 2001-05-01 Lucent Technologies Inc. Article comprising electronic circuits and devices with magnetically programmable electrical resistance

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL87166C (en) *
US2852732A (en) * 1958-09-16 Hall voltage generators
US2226846A (en) * 1937-09-29 1940-12-31 Honeywell Regulator Co Variable resistor
US2529117A (en) * 1945-08-30 1950-11-07 Philco Corp Electrical phase shift system
US2513899A (en) * 1947-02-27 1950-07-04 Ferranti Ltd Piezoelectric multiplying device
US2536806A (en) * 1948-08-04 1951-01-02 Gen Electric Hall effect control initiator
US2606966A (en) * 1951-08-23 1952-08-12 Myron G Pawley Phase shifting network
US2767911A (en) * 1952-11-21 1956-10-23 Boeing Co Electrical multiplier using hall effect
NL248948A (en) * 1959-04-25

Also Published As

Publication number Publication date
US3172032A (en) 1965-03-02

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