FR2418581A1 - Circuit de joncteur bidirectionnel sans transformateur - Google Patents

Circuit de joncteur bidirectionnel sans transformateur

Info

Publication number
FR2418581A1
FR2418581A1 FR7835484A FR7835484A FR2418581A1 FR 2418581 A1 FR2418581 A1 FR 2418581A1 FR 7835484 A FR7835484 A FR 7835484A FR 7835484 A FR7835484 A FR 7835484A FR 2418581 A1 FR2418581 A1 FR 2418581A1
Authority
FR
France
Prior art keywords
circuit
pair
transformerless
transformer
unbalanced
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
FR7835484A
Other languages
English (en)
Other versions
FR2418581B1 (fr
Inventor
Patrick R Beirne
Michael C J Cowpland
Raymond J Whitbread
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.)
Microsemi Semiconductor ULC
Original Assignee
Mitel Corp
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 Mitel Corp filed Critical Mitel Corp
Publication of FR2418581A1 publication Critical patent/FR2418581A1/fr
Application granted granted Critical
Publication of FR2418581B1 publication Critical patent/FR2418581B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/587—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using opto-couplers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/32—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/586—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using an electronic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0096—Trunk circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Dc Digital Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

Le circuit de joncteur bidirectionnel sans transformateur est prévu pour relier une paire symétrique et une paire dissymétrique, en évitant les renvois de signaux et en commandant les niveaux. La paire symétrique se termine par une première impédance d'adaptation et sur une résistance. Un premier circuit sans transformateur applique un signal de la paire dissymétrique à la paire symétrique tandis qu'un second circuit sans transformateur fait l'inverse. Un troisième circuit sans transformateur empêche des retours dans un sens et un quatrième des retours dans l'autre sens. On peut prévoir un couplage lumineux dans le premier circuit. Utilisable notamment dans les standards privés.
FR7835484A 1978-02-28 1978-12-08 Circuit de joncteur bidirectionnel sans transformateur Granted FR2418581A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA297,883A CA1123131A (fr) 1978-02-28 1978-02-28 Circuit de prolongement sans transformateur

Publications (2)

Publication Number Publication Date
FR2418581A1 true FR2418581A1 (fr) 1979-09-21
FR2418581B1 FR2418581B1 (fr) 1983-05-13

Family

ID=4110878

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7835484A Granted FR2418581A1 (fr) 1978-02-28 1978-12-08 Circuit de joncteur bidirectionnel sans transformateur
FR7918179A Expired FR2457608B1 (fr) 1978-02-28 1979-07-09 Circuit de joncteur bidirectionnel

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR7918179A Expired FR2457608B1 (fr) 1978-02-28 1979-07-09 Circuit de joncteur bidirectionnel

Country Status (6)

Country Link
US (2) US4182936A (fr)
JP (2) JPS6028477B2 (fr)
CA (1) CA1123131A (fr)
DE (3) DE2857761C2 (fr)
FR (2) FR2418581A1 (fr)
GB (1) GB2016242B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457608A1 (fr) * 1978-02-28 1980-12-19 Mitel Corp Circuit de joncteur bidirectionnel

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120498B (en) * 1982-04-29 1985-11-20 Motorola Inc Regulator circuit
CA1182230A (fr) * 1982-12-17 1985-02-05 Patrick R. Beirne Circuit d'interface pour ligne d'abonne
US4503289A (en) * 1983-01-17 1985-03-05 At&T Bell Laboratories Line circuit with flux compensation and active impedance termination
US4591663A (en) * 1983-11-17 1986-05-27 Trad, Inc. Servo-linearized opto-electronic analog interface
AT384919B (de) * 1984-10-05 1988-01-25 Alcatel Austria Ag Schaltungsanordnung fuer fernsprechnetze
US5172409A (en) * 1990-07-02 1992-12-15 Motorola, Inc. Precision FET control loop
GB0325301D0 (en) * 2003-10-30 2003-12-03 Mitel Networks Corp Direct access arrangement
US8385538B2 (en) * 2008-12-10 2013-02-26 Utc Fire & Security Americas Corporation, Inc. Method, system, and apparatus for a differential transformer-free hybrid circuit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2431485A1 (de) * 1974-07-01 1976-01-15 Siemens Ag Schaltungsanordnung zur abgabe einer symmetrischen ausgangsspannung
FR2305080A1 (fr) * 1975-03-20 1976-10-15 Jeumont Schneider Termineur electronique
US3987257A (en) * 1975-05-29 1976-10-19 International Telephone And Telegraph Corporation Optically coupled two-wire to four-wire hybrid lines
FR2343378A1 (fr) * 1976-03-02 1977-09-30 Ibm Circuit de ligne pour relier une ligne a deux fils a un systeme de commutation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2160308B1 (fr) * 1971-11-19 1977-01-28 Labo Cent Telecommunicat
US3889072A (en) * 1973-10-19 1975-06-10 Itt Bi-directional amplification apparatus
FR2251975B1 (fr) * 1973-11-16 1979-08-03 Labo Cent Telecommunicat
FR2315811A1 (fr) * 1975-06-27 1977-01-21 Labo Cent Telecommunicat Dipole electronique pour le bouclage d'une ligne telephonique
DE2543861C3 (de) * 1975-10-01 1981-06-25 Nixdorf Computer Ag, 4790 Paderborn Schaltung für eine zweirichtungsverstärkeranordnung in Fernmeldeanlagen, insbesondere Datenübertragungsanlagen, zur Sperrung des jeweiligen Verstärkereingangs gegen die Aufnahme abgehender Signale
DE2543866B1 (de) * 1975-10-01 1976-11-11 Siemens Ag Schaltungsanordnung fuer zweiadrige verbindungsleitungen in fernmelde-, insbesondere fernsprechanlagen, mit schleifenstromsignalisierung
US4064377A (en) * 1976-03-11 1977-12-20 Wescom Switching, Inc. Electronic hybrid and hybrid repeater
US4163878A (en) * 1977-09-07 1979-08-07 Wescom, Inc. Electronic hybrid and hybrid repeater with bridge circuit
CA1123131A (fr) * 1978-02-28 1982-05-04 Michael C.J. Cowpland Circuit de prolongement sans transformateur
US4174470A (en) * 1978-10-10 1979-11-13 Bell Telephone Laboratories, Incorporated Electronic hybrid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2431485A1 (de) * 1974-07-01 1976-01-15 Siemens Ag Schaltungsanordnung zur abgabe einer symmetrischen ausgangsspannung
FR2305080A1 (fr) * 1975-03-20 1976-10-15 Jeumont Schneider Termineur electronique
US3987257A (en) * 1975-05-29 1976-10-19 International Telephone And Telegraph Corporation Optically coupled two-wire to four-wire hybrid lines
FR2343378A1 (fr) * 1976-03-02 1977-09-30 Ibm Circuit de ligne pour relier une ligne a deux fils a un systeme de commutation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/78 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457608A1 (fr) * 1978-02-28 1980-12-19 Mitel Corp Circuit de joncteur bidirectionnel

Also Published As

Publication number Publication date
JPS6028477B2 (ja) 1985-07-04
DE2834673C2 (de) 1982-08-19
US4321431A (en) 1982-03-23
US4182936A (en) 1980-01-08
JPS6223950B2 (fr) 1987-05-26
DE2928309A1 (de) 1980-12-04
DE2928309C2 (fr) 1987-05-27
GB2016242A (en) 1979-09-19
GB2016242B (en) 1982-12-22
DE2834673A1 (de) 1979-09-06
JPS54118113A (en) 1979-09-13
FR2457608A1 (fr) 1980-12-19
CA1123131A (fr) 1982-05-04
FR2457608B1 (fr) 1985-10-25
JPS55158793A (en) 1980-12-10
FR2418581B1 (fr) 1983-05-13
DE2857761C2 (de) 1985-12-19

Similar Documents

Publication Publication Date Title
DE3783963T2 (de) Treiberschaltung mit einstellbarer impedanz.
DE69013185D1 (de) Elektrische Leistungsübertragungsvorrichtung mit induktiver Kopplungsvorrichtung.
DE69005660T2 (de) Ton- und Sichtkommunikationsendgerät mit verbesserten Einstellungen.
FR2418581A1 (fr) Circuit de joncteur bidirectionnel sans transformateur
DE69115076D1 (de) Diarylacetylen endgekappte Polyimide.
FR2415983A1 (fr) Classeur de livres perfectionne
DE68907017T2 (de) Photoempfindliche vorrichtung mit signalverstaerkung im bereich der photoempfindlichen punkte.
DE59008542D1 (de) Hörgeräteschaltung mit einer Endstufe mit einer Begrenzungseinrichtung.
FR2385269A1 (fr) Comparateur/inverseur complementaire
IT8125065A0 (it) Dispositivo di comando e di regolazione della coppia d'uscita con regolazione sovrapposta della potenza limite in una trasmissione idrostatica.
DE69412696D1 (de) Verbinder mit selektiv aufhebbarem Kurzschluss der Anschlüsse
IT7921100A0 (it) Gruppo pompa-motore e procedimentodi assemblaggio.
DE69028936D1 (de) Nichtlinearer nichtinvertierender Übertragungsimpedanzverstärker
FR2403443A1 (fr) Dispositif pour la pose d'un element isolant
DE3880648D1 (de) Impedanzmessgeraet.
FR2479586B1 (fr) Generateur d'ondes electromagnetiques dans l'infrarouge lointain
DE69121540D1 (de) Imid- und Amid-Imid-Copolymer
DE58905102D1 (de) Regelbarer daempfungsvierpol mit konstantem eingangs- und ausgangswiderstand.
DE58908646D1 (de) Differentieller Operationsverstärker mit Gleichtakt-Rückkoppelschaltung.
ATE83080T1 (de) Optische schaltvorrichtung.
DK566881A (da) Kredsloeb med variabel impedans
DE69025112T2 (de) Verstärkerschaltung mit zwei Invertern
IT1216525B (it) Apparato elettrico di cottura unita' elettrica di cottura e dotato della stessa.
JPS647701A (en) Drop-in isolator
DE69121928D1 (de) Verstärkerschaltung mit Rückkopplungskreis

Legal Events

Date Code Title Description
ST Notification of lapse