FR2437123A1 - Nouveau dispositif d'alimentation electronique - Google Patents

Nouveau dispositif d'alimentation electronique

Info

Publication number
FR2437123A1
FR2437123A1 FR7826821A FR7826821A FR2437123A1 FR 2437123 A1 FR2437123 A1 FR 2437123A1 FR 7826821 A FR7826821 A FR 7826821A FR 7826821 A FR7826821 A FR 7826821A FR 2437123 A1 FR2437123 A1 FR 2437123A1
Authority
FR
France
Prior art keywords
operational amplifier
power supply
telephone lines
electronic power
voltage
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
FR7826821A
Other languages
English (en)
Other versions
FR2437123B1 (fr
Inventor
Andre Chataignon
Marielle Taureau
Jean-Pierre Chapelain
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.)
Societe des Telephones Thomson Ericsson
Original Assignee
Societe des Telephones Thomson Ericsson
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 Societe des Telephones Thomson Ericsson filed Critical Societe des Telephones Thomson Ericsson
Priority to FR7826821A priority Critical patent/FR2437123A1/fr
Publication of FR2437123A1 publication Critical patent/FR2437123A1/fr
Application granted granted Critical
Publication of FR2437123B1 publication Critical patent/FR2437123B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

DISPOSITIF D'ALIMENTATION EN COURANT CONTINU POUR EQUIPEMENT DE LIGNES TELEPHONIQUES COMPRENANT ENTRE LA SOURCE ET CHAQUE FIL UNE RESISTANCE EN SERIE AVEC LE CIRCUIT COLLECTEUR EMETTEUR D'UN TRANSISTOR, LA BASE DESDITS TRANSISTORS ETANT RELIEE L'UNE AU COLLECTEUR, L'AUTRE A L'EMETTEUR D'UN TROISIEME TRANSISTOR DE COMMANDE.
FR7826821A 1978-09-19 1978-09-19 Nouveau dispositif d'alimentation electronique Granted FR2437123A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7826821A FR2437123A1 (fr) 1978-09-19 1978-09-19 Nouveau dispositif d'alimentation electronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7826821A FR2437123A1 (fr) 1978-09-19 1978-09-19 Nouveau dispositif d'alimentation electronique

Publications (2)

Publication Number Publication Date
FR2437123A1 true FR2437123A1 (fr) 1980-04-18
FR2437123B1 FR2437123B1 (fr) 1982-03-05

Family

ID=9212772

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7826821A Granted FR2437123A1 (fr) 1978-09-19 1978-09-19 Nouveau dispositif d'alimentation electronique

Country Status (1)

Country Link
FR (1) FR2437123A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498389A1 (fr) * 1981-01-20 1982-07-23 Philips Nv Protection d'un circuit de ligne contre les surtensions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2063623A5 (fr) * 1969-10-24 1971-07-09 Constr Telephoniques
FR2342508A1 (fr) * 1976-02-25 1977-09-23 Western Electric Co Cable de communications optiques
FR2363952A1 (fr) * 1976-09-03 1978-03-31 Thomson Csf Circuit de ligne telephonique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2063623A5 (fr) * 1969-10-24 1971-07-09 Constr Telephoniques
FR2342508A1 (fr) * 1976-02-25 1977-09-23 Western Electric Co Cable de communications optiques
FR2363952A1 (fr) * 1976-09-03 1978-03-31 Thomson Csf Circuit de ligne telephonique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498389A1 (fr) * 1981-01-20 1982-07-23 Philips Nv Protection d'un circuit de ligne contre les surtensions

Also Published As

Publication number Publication date
FR2437123B1 (fr) 1982-03-05

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Legal Events

Date Code Title Description
ST Notification of lapse