FR2404976A1 - Circuit d'alimentation de ligne - Google Patents

Circuit d'alimentation de ligne

Info

Publication number
FR2404976A1
FR2404976A1 FR7729439A FR7729439A FR2404976A1 FR 2404976 A1 FR2404976 A1 FR 2404976A1 FR 7729439 A FR7729439 A FR 7729439A FR 7729439 A FR7729439 A FR 7729439A FR 2404976 A1 FR2404976 A1 FR 2404976A1
Authority
FR
France
Prior art keywords
master
value
follower
line
generator
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.)
Granted
Application number
FR7729439A
Other languages
English (en)
Other versions
FR2404976B1 (fr
Inventor
Clement Blanchard
Daniel Jean Raymond Benard
Alain Denhez
Pascal Moree
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Priority to FR7729439A priority Critical patent/FR2404976A1/fr
Priority to IT28119/78A priority patent/IT1099192B/it
Priority to DE19782842634 priority patent/DE2842634A1/de
Priority to ES473790A priority patent/ES473790A1/es
Priority to BE190803A priority patent/BE870885A/fr
Publication of FR2404976A1 publication Critical patent/FR2404976A1/fr
Application granted granted Critical
Publication of FR2404976B1 publication Critical patent/FR2404976B1/fr
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/001Current supply source at the exchanger providing current to substations
    • H04M19/005Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Amplifiers (AREA)

Abstract

L'invention concerne un circuit d'alimentation de ligne, comportant un générateur directeur 3 alimentant un premier fil de ligne, un générateur suiveur 4 alimentant un deuxième fil de ligne, et un organe de commande 5 du générateur suiveur pour assurer l'équilibre de la ligne. Suivant l'invention, le générateur directeur 3 est commandé par un organe de commande 6 destiné à adapter la valeur du courant continu fourni à la ligne à la valeur de la résistance de la ligne. Application à la téléphonie.
FR7729439A 1977-09-30 1977-09-30 Circuit d'alimentation de ligne Granted FR2404976A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7729439A FR2404976A1 (fr) 1977-09-30 1977-09-30 Circuit d'alimentation de ligne
IT28119/78A IT1099192B (it) 1977-09-30 1978-09-27 Circuito di alimentazione di linea
DE19782842634 DE2842634A1 (de) 1977-09-30 1978-09-29 Leitungs-stromversorgungsschaltung
ES473790A ES473790A1 (es) 1977-09-30 1978-09-29 Circuito de alimentacion de linea, destinado especialmente a un empalme de central telefonica.
BE190803A BE870885A (fr) 1977-09-30 1978-09-29 Circuit d'alimentation de ligne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7729439A FR2404976A1 (fr) 1977-09-30 1977-09-30 Circuit d'alimentation de ligne

Publications (2)

Publication Number Publication Date
FR2404976A1 true FR2404976A1 (fr) 1979-04-27
FR2404976B1 FR2404976B1 (fr) 1980-04-18

Family

ID=9195948

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729439A Granted FR2404976A1 (fr) 1977-09-30 1977-09-30 Circuit d'alimentation de ligne

Country Status (5)

Country Link
BE (1) BE870885A (fr)
DE (1) DE2842634A1 (fr)
ES (1) ES473790A1 (fr)
FR (1) FR2404976A1 (fr)
IT (1) IT1099192B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441303A1 (fr) * 1978-11-13 1980-06-06 Labo Cent Telecommunicat Pont d'alimentation electronique pour ligne telephonique
FR2481035A1 (fr) * 1980-04-18 1981-10-23 Trt Telecom Radio Electr Perfectionnements aux joncteurs d'abonne electroniques

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2065418B (en) * 1979-12-06 1984-02-15 Standard Telephones Cables Ltd Telephone line feed

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441303A1 (fr) * 1978-11-13 1980-06-06 Labo Cent Telecommunicat Pont d'alimentation electronique pour ligne telephonique
FR2481035A1 (fr) * 1980-04-18 1981-10-23 Trt Telecom Radio Electr Perfectionnements aux joncteurs d'abonne electroniques
EP0038594A1 (fr) * 1980-04-18 1981-10-28 Telecommunications Radioelectriques Et Telephoniques T.R.T. Perfectionnements aux joncteurs d'abonné électroniques
EP0038594B1 (fr) * 1980-04-18 1984-06-13 Telecommunications Radioelectriques Et Telephoniques T.R.T. Perfectionnements aux joncteurs d'abonné électroniques

Also Published As

Publication number Publication date
FR2404976B1 (fr) 1980-04-18
IT1099192B (it) 1985-09-18
BE870885A (fr) 1979-01-15
IT7828119A0 (it) 1978-09-27
ES473790A1 (es) 1979-04-16
DE2842634A1 (de) 1979-04-12

Similar Documents

Publication Publication Date Title
AU545011B2 (en) Telephone line circuit
DE3171217D1 (en) Method of and circuit arrangement for supplying current to a two-wire telecommunications line
GB1167741A (en) Photon-coupled Circuit
IE810289L (en) Telephone line feed
DE3167719D1 (en) Telephone circuit
FR2404976A1 (fr) Circuit d'alimentation de ligne
GB800064A (en) Improvements in or relating to printed circuits
JPS522113A (en) Telephone current suplying system
GB1164931A (en) Automatic Regulation of Telephone Sets.
ATE50103T1 (de) Leitungsschaltung fuer schleifenstromzufuehrung an einer zweidraht-telefonteilnehmerleitung.
SE7807288L (sv) Matningskrets for en abonnentlinjekrets
SE7902832L (sv) Abonnentanslutningskrets innefattande en symmetrisk effektforsterkare for matning av en abonnentledning
ES464223A1 (es) Equipo para linea telefonica.
JPS53140906A (en) Direct current supplying circuit
ES426575A1 (es) Perfeccionamientos introducidos en un circuito de adapta- cion de linea para uso en un aparato telefonico de abonado con marcacion de numero por pulsadores de tono.
JPS6485495A (en) Terminal power supplying circuit for key telephone system
ES473664A1 (es) Equipo electronico de abonado, con circuito de conversion dos hilos-cuatro hilos, para central telefonica
JPS5439509A (en) Dc current supplying circuit
GB1353282A (en) Circuit for detecting signals transmitted onto a two wire line
JPS522309A (en) Operator's communication system
GB928172A (en) Improvements relating to telephone exchange systems
TH313A (th) เครื่องกำเนิดเสียงสำหรับการแบ่งเวลกของชุมสายโทรศัพท์
GB1478816A (en) Electrical delay line assembly
CA1116767A (fr) Circuit en pont pour alimenter une ligne d'abonne en courant continu et en tonalites
TH313EX (th) เครื่องกำเนิดเสียงสำหรับการแบ่งเวลกของชุมสายโทรศัพท์

Legal Events

Date Code Title Description
ST Notification of lapse