BE449679A - - Google Patents

Info

Publication number
BE449679A
BE449679A BE449679DA BE449679A BE 449679 A BE449679 A BE 449679A BE 449679D A BE449679D A BE 449679DA BE 449679 A BE449679 A BE 449679A
Authority
BE
Belgium
Prior art keywords
voltage
field
motor
transmitted
frequency
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE449679A publication Critical patent/BE449679A/fr

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18Automatic scanning over a band of frequencies
    • H03J7/30Automatic scanning over a band of frequencies where the scanning is accomplished by mechanical means, e.g. by a motor
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/02Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00Automatic frequency control; Automatic scanning over a band of frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
BE449679D BE449679A (pm)

Publications (1)

Publication Number Publication Date
BE449679A true BE449679A (pm)

Family

ID=104948

Family Applications (1)

Application Number Title Priority Date Filing Date
BE449679D BE449679A (pm)

Country Status (1)

Country Link
BE (1) BE449679A (pm)

Similar Documents

Publication Publication Date Title
FR2532511A1 (pm)
JPH077988A (ja) 単相ac電動機速度制御装置
FR2398414A1 (fr) Circuit d'accord automatique de frequence, notamment pour recepteur ou demodulateur fm pour la detection d'un signal
BE449679A (pm)
US4868435A (en) Single phase synchronous motor vibration apparatus
US1854863A (en) Reed converter
BE383814A (pm)
BE1012514A3 (fr) Dispositif de traducteur piezoelectrique a circuit oscillant excite par un circuit de commande.
GB518480A (en) Improvements in or relating to electrical frequency-dependent control means, primarily for radio apparatus
US2439065A (en) Speed control by means of tuning forks
BE426817A (pm)
EP0495611A2 (en) Method of and circuit for starting sensorless motor
US1795616A (en) Synchronization for facsimile transmission
BE442241A (pm)
US2423086A (en) Synchronizing device
BE530341A (pm)
JPS6212477B2 (pm)
BE454585A (pm)
BE463174A (pm)
EP0540417A1 (fr) Dispositif de protection contre les surcharges pour moteur électrique à commutation électronique
BE463483A (pm)
BE496937A (pm)
BE432420A (pm)
JP2000069798A (ja) ブラシレス自励型同期発電機
BE480882A (pm)