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FR2414832A1 - SUPPLY BRIDGE FOR TELEPHONE LINE - Google Patents

SUPPLY BRIDGE FOR TELEPHONE LINE

Info

Publication number
FR2414832A1
FR2414832A1 FR7800970A FR7800970A FR2414832A1 FR 2414832 A1 FR2414832 A1 FR 2414832A1 FR 7800970 A FR7800970 A FR 7800970A FR 7800970 A FR7800970 A FR 7800970A FR 2414832 A1 FR2414832 A1 FR 2414832A1
Authority
FR
France
Prior art keywords
telephone line
supply bridge
dipole
noise
supply
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.)
Pending
Application number
FR7800970A
Other languages
French (fr)
Inventor
Daniel Michel Auguste Fe Bolus
Jean-Pierre Chevillon
Jean-Charles Comte
Pierre Denis Paul Philippe
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.)
Laboratoire Central de Telecommunications SA
Original Assignee
Laboratoire Central de Telecommunications SA
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 Laboratoire Central de Telecommunications SA filed Critical Laboratoire Central de Telecommunications SA
Priority to FR7800970A priority Critical patent/FR2414832A1/en
Priority to GB7900252A priority patent/GB2012521B/en
Priority to BR7900101A priority patent/BR7900101A/en
Priority to BE2/57546A priority patent/BE873459A/en
Publication of FR2414832A1 publication Critical patent/FR2414832A1/en
Pending 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)
  • Devices For Supply Of Signal Current (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un pont d'alimentation électronique à deux dipôles gyrateurs couplés pour ligne téléphonique, avec réjection du bruit d'alimentation. Le principe de réjection du bruit d'alimentation consiste, pour chaque dipôle, à produire sur l'émetteur du transistor une tension identique à la tension de bruit reçue par le dipôle, imposant ainsi un courant nul dans la résistance d'émetteur. Application à la téléphonie.The invention relates to an electronic power supply bridge with two coupled gyrating dipoles for a telephone line, with rejection of the supply noise. The principle of supply noise rejection consists, for each dipole, in producing on the emitter of the transistor a voltage identical to the noise voltage received by the dipole, thus imposing a zero current in the emitter resistor. Application to telephony.

FR7800970A 1978-01-13 1978-01-13 SUPPLY BRIDGE FOR TELEPHONE LINE Pending FR2414832A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7800970A FR2414832A1 (en) 1978-01-13 1978-01-13 SUPPLY BRIDGE FOR TELEPHONE LINE
GB7900252A GB2012521B (en) 1978-01-13 1979-01-04 Feed bridge for telephone line
BR7900101A BR7900101A (en) 1978-01-13 1979-01-09 POWER SOURCE FOR A TELEPHONE LINE
BE2/57546A BE873459A (en) 1978-01-13 1979-01-15 GYRATORS AND SUPPLY BRIDGES FOR TELEPHONE LINES USING THEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7800970A FR2414832A1 (en) 1978-01-13 1978-01-13 SUPPLY BRIDGE FOR TELEPHONE LINE

Publications (1)

Publication Number Publication Date
FR2414832A1 true FR2414832A1 (en) 1979-08-10

Family

ID=9203442

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800970A Pending FR2414832A1 (en) 1978-01-13 1978-01-13 SUPPLY BRIDGE FOR TELEPHONE LINE

Country Status (4)

Country Link
BE (1) BE873459A (en)
BR (1) BR7900101A (en)
FR (1) FR2414832A1 (en)
GB (1) GB2012521B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438394A1 (en) * 1978-10-06 1980-04-30 Philips Nv SUPPLY BRIDGE FOR SUBSCRIBER LINE

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU182390B (en) * 1981-12-18 1983-12-28 Telefongyar With the active elements formed two-pole terminal network equivalent to a resistor
GB2120498B (en) * 1982-04-29 1985-11-20 Motorola Inc Regulator circuit
NL8801619A (en) * 1988-02-24 1989-09-18 Alcatel Nederland TELEPHONE LINE INTERFACE SWITCHING.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290202B (en) * 1966-09-30 1969-03-06 Merk Gmbh Telefonbau Fried Circuit arrangement for the supply of telephone subscriber stations
FR2296339A1 (en) * 1974-12-23 1976-07-23 Ibm SUBSCRIBER LINE INTERFACE CIRCUIT
US4007335A (en) * 1975-11-12 1977-02-08 Bell Telephone Laboratories, Incorporated Telephone line battery feed circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290202B (en) * 1966-09-30 1969-03-06 Merk Gmbh Telefonbau Fried Circuit arrangement for the supply of telephone subscriber stations
FR2296339A1 (en) * 1974-12-23 1976-07-23 Ibm SUBSCRIBER LINE INTERFACE CIRCUIT
US4007335A (en) * 1975-11-12 1977-02-08 Bell Telephone Laboratories, Incorporated Telephone line battery feed circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438394A1 (en) * 1978-10-06 1980-04-30 Philips Nv SUPPLY BRIDGE FOR SUBSCRIBER LINE

Also Published As

Publication number Publication date
BR7900101A (en) 1979-08-07
BE873459A (en) 1979-07-16
GB2012521A (en) 1979-07-25
GB2012521B (en) 1982-01-20

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