FR1152648A - Improvements to electromagnetic devices - Google Patents

Improvements to electromagnetic devices

Info

Publication number
FR1152648A
FR1152648A FR1152648DA FR1152648A FR 1152648 A FR1152648 A FR 1152648A FR 1152648D A FR1152648D A FR 1152648DA FR 1152648 A FR1152648 A FR 1152648A
Authority
FR
France
Prior art keywords
electromagnetic devices
electromagnetic
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
Other languages
French (fr)
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Application granted granted Critical
Publication of FR1152648A publication Critical patent/FR1152648A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/08—Amplitude modulation by means of variable impedance element
    • H03C1/10—Amplitude modulation by means of variable impedance element the element being a current-dependent inductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F9/00—Magnetic amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/80—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Measuring Magnetic Variables (AREA)
FR1152648D 1955-04-01 1956-03-30 Improvements to electromagnetic devices Expired FR1152648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9505/55A GB803235A (en) 1955-04-01 1955-04-01 Improvements in or relating to electromagnetic devices having variable reluctance

Publications (1)

Publication Number Publication Date
FR1152648A true FR1152648A (en) 1958-02-21

Family

ID=9873257

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1152648D Expired FR1152648A (en) 1955-04-01 1956-03-30 Improvements to electromagnetic devices

Country Status (4)

Country Link
US (1) US2996682A (en)
FR (1) FR1152648A (en)
GB (1) GB803235A (en)
NL (2) NL205894A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255414A (en) * 1963-01-21 1966-06-07 Bendix Corp Modulation-demodulation tuning control system using plural winding transformer and phase sensitive servo loop
US4378525A (en) * 1980-09-18 1983-03-29 Burdick Neal M Method and apparatus for measuring a DC current in a wire without making a direct connection to the wire
US5585766A (en) * 1994-10-27 1996-12-17 Applied Materials, Inc. Electrically tuned matching networks using adjustable inductance elements
DE102006022438A1 (en) * 2006-05-13 2007-11-15 Robert Bosch Gmbh Choke coil for e.g. multiple mains filter drive system, has primary winding, where choke coil is coupled with coupling coil and choke coil inductivity is adjusted by coupling coil that is realized as air core coil, which does not have core
US20110169520A1 (en) * 2010-01-14 2011-07-14 Mks Instruments, Inc. Apparatus for measuring minority carrier lifetime and method for using the same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL46063C (en) * 1934-12-29
US2130508A (en) * 1937-04-29 1938-09-20 Bell Telephone Labor Inc Inductance device
US2302893A (en) * 1939-09-29 1942-11-24 Rca Corp Variable inductance arrangement
US2661453A (en) * 1949-01-03 1953-12-01 Hemingway Arthur Victor Saturable core transformer system
US2716736A (en) * 1949-12-08 1955-08-30 Harold B Rex Saturable reactor
US2788500A (en) * 1952-03-07 1957-04-09 Charles F Gunderson Saturable reactor
US2820109A (en) * 1952-03-22 1958-01-14 Cgs Lab Inc Magnetic amplifier
US2760158A (en) * 1952-07-07 1956-08-21 Quentin A Kerns Method and apparatus for measuring electrical current
US2819444A (en) * 1953-12-18 1958-01-07 Westinghouse Brake & Signal Magnetic discriminator
US2826748A (en) * 1956-03-26 1958-03-11 F R Machine Works Inc Saturable variable inductor

Also Published As

Publication number Publication date
NL104987C (en)
NL205894A (en)
US2996682A (en) 1961-08-15
GB803235A (en) 1958-10-22

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