BE542688A - - Google Patents

Info

Publication number
BE542688A
BE542688A BE542688DA BE542688A BE 542688 A BE542688 A BE 542688A BE 542688D A BE542688D A BE 542688DA BE 542688 A BE542688 A BE 542688A
Authority
BE
Belgium
Application number
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.)
Publication of BE542688A publication Critical patent/BE542688A/xx

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
    • G05F1/42—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices discharge tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Ac-Ac Conversion (AREA)
BE542688D 1954-11-11 BE542688A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL338916X 1954-11-11

Publications (1)

Publication Number Publication Date
BE542688A true BE542688A (ja)

Family

ID=19784631

Family Applications (1)

Application Number Title Priority Date Filing Date
BE542688D BE542688A (ja) 1954-11-11

Country Status (4)

Country Link
US (1) US2905880A (ja)
BE (1) BE542688A (ja)
CH (1) CH338916A (ja)
DE (1) DE1110284B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1438406B2 (de) * 1961-06-13 1970-05-21 Brown, Boveri & Cie. AG, 6800 Mannheim-Käfertal Umrichter zur Frequenzumwandlung von Dreiphasen-Wechselströmen
US3297937A (en) * 1963-02-13 1967-01-10 Benchimol Augusto Frequency converter utilizing magnetic amplifiers and scr's
US3309605A (en) * 1963-08-19 1967-03-14 Tektronix Inc Frequency converter wherein an astable oscillator is free running at high frequency input signals and is synchronized to low frequency input signals

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1394565A (en) * 1917-08-24 1921-10-25 John E Long Electric sign
US1835912A (en) * 1929-11-19 1931-12-08 Sprague Signs Inc Universal electric sign system
BE406793A (ja) * 1934-07-04 1935-01-01
DE709781C (de) * 1934-09-13 1941-08-27 Siemens Schuckertwerke Akt Ges Steuerung von mehrphasigen Gas- oder Dampfentladungsstrecken mit einer verhaeltnismaessig schwachen Steuerenergiequelle
CH199296A (de) * 1936-04-25 1938-08-15 Licentia Gmbh Verfahren zur Regelung von Stromrichtern.
US2431083A (en) * 1944-09-01 1947-11-18 Welding Research Inc Electric valve converting system
US2474867A (en) * 1945-12-20 1949-07-05 Welding Research Inc Protective system for three-phase single-phase machines
US2549831A (en) * 1948-05-21 1951-04-24 Westinghouse Electric Corp Conversion system
US2619625A (en) * 1949-07-01 1952-11-25 Westinghouse Electric Corp Frequency converter control
US2704820A (en) * 1951-02-24 1955-03-22 William H Martin Phase and frequency conversion system
DE892932C (de) * 1951-09-01 1953-10-12 Licentia Gmbh Anordnung zur unsymmetrischen Steuerung von mit gittergesteuerten Dampf- oder Gasentladungsstrecken arbeitenden Stromrichtern
BE520456A (ja) * 1952-06-04 1900-01-01

Also Published As

Publication number Publication date
US2905880A (en) 1959-09-22
CH338916A (de) 1959-06-15
DE1110284B (de) 1961-07-06

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