[go: up one dir, main page]

FR944399A - Dispositif pour engendrer des oscillations électriques à basse fréquence - Google Patents

Dispositif pour engendrer des oscillations électriques à basse fréquence

Info

Publication number
FR944399A
FR944399A FR944399DA FR944399A FR 944399 A FR944399 A FR 944399A FR 944399D A FR944399D A FR 944399DA FR 944399 A FR944399 A FR 944399A
Authority
FR
France
Prior art keywords
low frequency
frequency electrical
generating low
electrical oscillations
oscillations
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
English (en)
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Application granted granted Critical
Publication of FR944399A publication Critical patent/FR944399A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/03—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source using non-linear inductance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/34—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp to provide a sequence of flashes

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Ac-Ac Conversion (AREA)
FR944399D 1946-03-28 1947-03-31 Dispositif pour engendrer des oscillations électriques à basse fréquence Expired FR944399A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2567383X 1946-03-28

Publications (1)

Publication Number Publication Date
FR944399A true FR944399A (fr) 1949-04-04

Family

ID=20426249

Family Applications (1)

Application Number Title Priority Date Filing Date
FR944399D Expired FR944399A (fr) 1946-03-28 1947-03-31 Dispositif pour engendrer des oscillations électriques à basse fréquence

Country Status (2)

Country Link
US (1) US2567383A (fr)
FR (1) FR944399A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730670A (en) * 1949-11-14 1956-01-10 Asea Ab Means for producing low-frequency electrical oscillations
US2786177A (en) * 1950-02-11 1957-03-19 Siemens Ag Saturation-controllable reactor devices
US2727199A (en) * 1953-05-18 1955-12-13 Gen Electric Variable frequency power control systems for a. c. motors
US2787755A (en) * 1953-08-13 1957-04-02 North American Aviation Inc Magnetic frequency divider
US2907944A (en) * 1956-05-11 1959-10-06 Westinghouse Electric Corp Frequency multiplier

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1639695A (en) * 1924-10-31 1927-08-23 Drahtlose Telegraphie Gmbh Arrangement for the regulation of the frequency in frequency changers
US1739579A (en) * 1928-06-20 1929-12-17 Union Switch & Signal Co Electrical translating apparatus
US1862211A (en) * 1928-06-20 1932-06-07 Union Switch & Signal Co Electrical translating apparatus
US1921789A (en) * 1932-07-01 1933-08-08 Gen Electric Pulsation apparatus
US1946297A (en) * 1933-04-26 1934-02-06 Gen Electric Alternating current control apparatus
GB431460A (en) * 1933-10-02 1935-07-08 British Thomson Houston Co Ltd Improvements in and relating to variable pulsation apparatus
US2169093A (en) * 1937-01-02 1939-08-08 Gen Electric Electrical control system
US2222048A (en) * 1938-11-23 1940-11-19 Union Switch & Signal Co Apparatus for the production of electric oscillations
NL57679C (fr) * 1938-12-24 1900-01-01

Also Published As

Publication number Publication date
US2567383A (en) 1951-09-11

Similar Documents

Publication Publication Date Title
FR946946A (fr) Appareil d'accord de haute fréquence
FR952475A (fr) Dispositif amplificateur pour haute fréquence
FR944399A (fr) Dispositif pour engendrer des oscillations électriques à basse fréquence
FR945062A (fr) Dispositif tendeur pour bobinoirs
FR1007290A (fr) Chromogènes pour bleus
FR925060A (fr) Dispositif de verrouillage pour réceptacles
FR950362A (fr) Dispositif pour la détermination des fréquences
FR919582A (fr) Générateur d'oscillations de haute fréquence pour appareils médicaux
FR929575A (fr) Dispositif adaptateur pour amplificateur à basse fréquence
FR1017189A (fr) Dispositif pour dessiner
FR925987A (fr) Dispositif électro-acoustique pour jouets
FR926861A (fr) Dispositif de transformation des vibrations mécaniques en oscillations électriqueset inversement
FR943717A (fr) Antennes pour très hautes fréquences
FR939862A (fr) Dispositif pour le refroidissement des fluides
ES175021A1 (es) Detector de silicio para oscilaciones eléctricas
FR924793A (fr) Transformateur pour fréquences acoustiques
FR932021A (fr) Dispositif pour le tracé des sourcils
FR945126A (fr) Appareil pour le dévissage des boîtiers de montres
CH272933A (fr) Appareil électronique pour très hautes fréquences.
FR922483A (fr) Dispositif permettant de produire des oscillations électriques modulées
FR934273A (fr) Indicateur visuel d'accord pour appareil radioélectrique
FR924086A (fr) Câble pour hautes fréquences
CH260229A (fr) Dispositif pour la décomposition des amalgames alcalins.
FR972984A (fr) Dispositif de production d'oscillations électriques à basse fréquence
FR1027653A (fr) Dispositif destiné à produire des oscillations électriques à basse fréquence