ES470952A1 - Perfeccionamientos en dispositivos para la vigilancia de unacorriente continua en convertidores estaticos de frecuencia - Google Patents

Perfeccionamientos en dispositivos para la vigilancia de unacorriente continua en convertidores estaticos de frecuencia

Info

Publication number
ES470952A1
ES470952A1 ES470952A ES470952A ES470952A1 ES 470952 A1 ES470952 A1 ES 470952A1 ES 470952 A ES470952 A ES 470952A ES 470952 A ES470952 A ES 470952A ES 470952 A1 ES470952 A1 ES 470952A1
Authority
ES
Spain
Prior art keywords
component
detecting
voltage
signaling
converter
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
ES470952A
Other languages
English (en)
Spanish (es)
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.)
Institutul de Cercetari Pentru Industria Electro Tehnica
Original Assignee
Institutul de Cercetari Pentru Industria Electro Tehnica
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 Institutul de Cercetari Pentru Industria Electro Tehnica filed Critical Institutul de Cercetari Pentru Industria Electro Tehnica
Publication of ES470952A1 publication Critical patent/ES470952A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Amplifiers (AREA)
  • Dc-Dc Converters (AREA)
ES470952A 1977-06-27 1978-06-20 Perfeccionamientos en dispositivos para la vigilancia de unacorriente continua en convertidores estaticos de frecuencia Expired ES470952A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO7790829A RO66192A2 (fr) 1977-06-27 1977-06-27 Dispositif pour le surveillance d'une composante continue

Publications (1)

Publication Number Publication Date
ES470952A1 true ES470952A1 (es) 1979-02-01

Family

ID=20097918

Family Applications (1)

Application Number Title Priority Date Filing Date
ES470952A Expired ES470952A1 (es) 1977-06-27 1978-06-20 Perfeccionamientos en dispositivos para la vigilancia de unacorriente continua en convertidores estaticos de frecuencia

Country Status (8)

Country Link
CS (1) CS219340B2 (fr)
DD (1) DD135428A5 (fr)
EG (1) EG13261A (fr)
ES (1) ES470952A1 (fr)
GB (1) GB1577112A (fr)
HU (1) HU176683B (fr)
PL (1) PL126070B1 (fr)
RO (1) RO66192A2 (fr)

Also Published As

Publication number Publication date
EG13261A (en) 1981-12-31
PL207888A1 (pl) 1979-07-16
CS219340B2 (en) 1983-03-25
RO66192A2 (fr) 1982-07-06
HU176683B (en) 1981-04-28
PL126070B1 (en) 1983-07-30
GB1577112A (en) 1980-10-22
DD135428A5 (de) 1979-05-02

Similar Documents

Publication Publication Date Title
CH533838A (fr) Dispositif détecteur des temps de saturation éventuelle d'un transformateur de courant
FR2315720A1 (fr) Circuit de commande pour engendrer un signal de commande destine a un convertisseur de tension
ES470952A1 (es) Perfeccionamientos en dispositivos para la vigilancia de unacorriente continua en convertidores estaticos de frecuencia
FR1284360A (fr) Dispositif pour la modulation de phase en hautes fréquences ou en hyperfréquences
GB1070081A (en) Improvements in or relating to apparatus for the direct measurement of capacitance
KR830008447A (ko) 링깅 콘버어터
FR1279001A (fr) Dispositif pour fournir des intensités de courant constantes, notamment pour des buts d'étalonnage d'appareils de mesure
CH409078A (de) Einrichtung zur Ein- und Ausschaltung von Gleichstromkreisen
DK110241C (da) Måleindretning til overvågning af i drift værende afsnit af koaksialledninger til bærefrekvenstelefoni.
SU871081A1 (ru) Устройство дл измерени посто нного тока
FR1259724A (fr) Réseaux à transistors pour la détection de niveaux de signaux électriques
JPS53144240A (en) Signal detection circuit
FR1271693A (fr) Dispositif perfectionné pour circuits électriques préfabriqués
GB1073668A (en) Apparatus for ascertaining and monitoring the foetal heart action
DD127930A1 (de) Schaltungsanordnung zur elektronischen durchschaltung analoger messsignale mit mos-feldeffekttransistoren
FR1449824A (fr) Dispositif de signalisation de la présence d'un liquide
JPS5366145A (en) Oscillator circuit
FR2409625A1 (fr) Installation permettant de prelever une tension sur un condensateur tampon d'un onduleur
JPS53123039A (en) Detection circuit for signal voltage
FR1281153A (fr) Dispositif convertisseur de courant ou de tension électriques
DD129845A1 (de) Wandleranordnung zur elektronischen digitalen durchschaltung von sprachsignalen
ES447719A1 (es) Metodo y su correspondiente aparato de deteccion de senal decorriente continua.
FR1283704A (fr) Dispositif pour palper des rails
FR1301181A (fr) Dispositif de portée musicale servant de clavier pour instrument de musique électronique
JPS5227236A (en) Transistor circuit

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990405