ES2066835T3 - Regulador de corriente del bucle de una linea telefonica. - Google Patents

Regulador de corriente del bucle de una linea telefonica.

Info

Publication number
ES2066835T3
ES2066835T3 ES89201805T ES89201805T ES2066835T3 ES 2066835 T3 ES2066835 T3 ES 2066835T3 ES 89201805 T ES89201805 T ES 89201805T ES 89201805 T ES89201805 T ES 89201805T ES 2066835 T3 ES2066835 T3 ES 2066835T3
Authority
ES
Spain
Prior art keywords
circuit
resistor
current
transistor
telephone line
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 - Lifetime
Application number
ES89201805T
Other languages
English (en)
Inventor
William Henry C O Phi Gardiner
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of ES2066835T3 publication Critical patent/ES2066835T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0096—Trunk circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/40—Impedance converters
    • H03H11/42—Gyrators

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Structures For Mounting Electric Components On Printed Circuit Boards (AREA)

Abstract

EL REGULADOR DE CORRIENTE DEL CIRCUITO DE LA LINEA TELEFONICA COMBINA LAS FUNCIONES DE REGULACION DE LA CORRIENTE, DETECCION DE LA CORRIENTE, INDICACION DE DESCONEXION DEL CIRCUITO Y CONMUTACION DE CONVERSACION. CONSTA DE UN CIRCUITO GIRADOR FORMADO POR UN RESISTOR (R1), UN CAPACITOR (C1), UN TRANSISTOR (T1) Y UN RESISTOR (R3). LA CORRIENTE DEL CIRCUITO ES REGULADA POR EL TRANSISTOR (T1) Y EL RESISTOR (R3) MIENTRAS QUE LA DETECCION DE LA CORRIENTE DEL CIRCUITO SE CONSIGUE CONTROLANDO EL VOLTAJE QUE PASA POR EL RESISTOR (R3) MEDIANTE UN OPTO-DIODO QUE FORMA PARTE DE UN ACOPLADOR OPTO-ELECTRONICO (OP2). LA CONMUTACION DE LA CONVERSACION LA REALIZA UN TRANSISTOR (T3) QUE CONTROLA ASIMISMO EL VOLTAJE QUE PASA POR EL RESISTOR (R3) DE FORMA QUE LA CONVERSACION SE CONMUTA A LA LINEA MEDIANTE UN TRANSFORMADOR (TR1) CUANDO EXISTE CORRIENTE DE CIRCUITO CONTINUA. LA TOMA DE LA LINEA Y LA INDICACION DE DESCONEXION DEL CIRCUITO SE EFECTUAN CONMUTANDO EL OPTO-ACOPLADOR (OP1) PARA ACTIVAR Y DESACTIVAREL TRANSISTOR (T1).
ES89201805T 1988-07-13 1989-07-07 Regulador de corriente del bucle de una linea telefonica. Expired - Lifetime ES2066835T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8816634A GB2220820B (en) 1988-07-13 1988-07-13 Telephone line loop current regulator

Publications (1)

Publication Number Publication Date
ES2066835T3 true ES2066835T3 (es) 1995-03-16

Family

ID=10640356

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89201805T Expired - Lifetime ES2066835T3 (es) 1988-07-13 1989-07-07 Regulador de corriente del bucle de una linea telefonica.

Country Status (7)

Country Link
US (1) US5020100A (es)
EP (1) EP0351009B1 (es)
JP (1) JP3285348B2 (es)
KR (1) KR0128252B1 (es)
DE (1) DE68919558T2 (es)
ES (1) ES2066835T3 (es)
GB (1) GB2220820B (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195130A (en) * 1988-05-05 1993-03-16 Transaction Technology, Inc. Computer and telephone apparatus with user friendly computer interface and enhanced integrity features
US5485370A (en) 1988-05-05 1996-01-16 Transaction Technology, Inc. Home services delivery system with intelligent terminal emulator
US5572572A (en) 1988-05-05 1996-11-05 Transaction Technology, Inc. Computer and telephone apparatus with user friendly interface and enhanced integrity features
US5870724A (en) 1989-12-08 1999-02-09 Online Resources & Communications Corporation Targeting advertising in a home retail banking delivery service
US5144287A (en) * 1990-12-28 1992-09-01 Rolm Systems Current level sensing circuit for use with gyrator circuitry
JPH05176354A (ja) * 1991-12-20 1993-07-13 Fujitsu Ltd 加入者インタフェース回路
WO1994003990A1 (en) * 1992-08-07 1994-02-17 Pascom Technologies Pty. Ltd. Isolation interface apparatus
CA2146596C (en) * 1994-04-29 1999-09-21 Harry W. Moore, Iii Loop current detector
JP2902569B2 (ja) * 1995-03-28 1999-06-07 株式会社東京通機 直流抵抗制御回路
US5796832A (en) 1995-11-13 1998-08-18 Transaction Technology, Inc. Wireless transaction and information system
US6160887A (en) * 1997-05-02 2000-12-12 Goodrich; Patrick Telephone loop-current regulator
US5982878A (en) * 1997-05-15 1999-11-09 Hubbell Incorporated Combined loop current sink, battery detector, and ringing detector circuit
JPH10322463A (ja) * 1997-05-16 1998-12-04 Brother Ind Ltd 網制御装置
GB2333653A (en) * 1998-01-21 1999-07-28 Motorola Ltd Interface apparatus for a communications device
WO1999053627A1 (en) 1998-04-10 1999-10-21 Chrimar Systems, Inc. Doing Business As Cms Technologies System for communicating with electronic equipment on a network
US6272220B1 (en) * 1998-07-01 2001-08-07 Sentient Communications, Inc. Electronically switched optically coupled line interface
US7346785B2 (en) * 1999-01-12 2008-03-18 Microsemi Corp. - Analog Mixed Signal Group Ltd. Structure cabling system
FR2913165A1 (fr) * 2007-02-26 2008-08-29 France Telecom Dispositif de reinjection de signaux a basses frequences entre un modem d'un usager et une installation telephonique de l'usager
KR101847026B1 (ko) * 2011-03-01 2018-04-09 어플라이드 머티어리얼스, 인코포레이티드 공유된 펌프를 갖는 진공 챔버들

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2251975B1 (es) * 1973-11-16 1979-08-03 Labo Cent Telecommunicat
US4190745A (en) * 1978-12-01 1980-02-26 Gte Automatic Electric Laboratories Incorporated Call for service and continuity sensor circuit
US4230912A (en) * 1979-02-21 1980-10-28 Gte Automatic Electric Laboratories Incorporated Dial pulse sensor and repeater circuit
FR2530105B1 (fr) * 1982-07-07 1985-07-05 Constr Telephoniques Circuit de boucle pour ligne telephonique
HU193107B (en) * 1985-03-29 1987-08-28 Bhg Hiradastech Vallalat Circuit arrangement for making circuit of main route, in particular to digital sub-exchanges
GB2184630A (en) * 1985-12-10 1987-06-24 Lake Electronic Tech A telephone apparatus
DE3629938A1 (de) * 1986-09-03 1988-03-10 Standard Elektrik Lorenz Ag Schaltungsanordnung mit einer elektronischen drossel

Also Published As

Publication number Publication date
DE68919558T2 (de) 1995-06-14
DE68919558D1 (de) 1995-01-12
KR910003989A (ko) 1991-02-28
JP3285348B2 (ja) 2002-05-27
KR0128252B1 (ko) 1998-04-30
GB8816634D0 (en) 1988-08-17
GB2220820A (en) 1990-01-17
GB2220820B (en) 1992-07-08
EP0351009B1 (en) 1994-11-30
EP0351009A2 (en) 1990-01-17
JPH0267072A (ja) 1990-03-07
US5020100A (en) 1991-05-28
EP0351009A3 (en) 1991-07-03

Similar Documents

Publication Publication Date Title
ES2066835T3 (es) Regulador de corriente del bucle de una linea telefonica.
BR9107166A (pt) Dispositivo de protecao de circuito
KR880701034A (ko) 스위칭 레귤레이터
MY112907A (en) Dual voltage regulator with foldback current limiting
KR880013286A (ko) 비상상태가 극성 반전으로 표시되는 비상 d.c. 전원공급기
KR880701062A (ko) 간략화한 가스 방전장치 심머링 회로
DK0664602T3 (da) Flyback-konverter med reguleret udgangsspænding.
ATE142056T1 (de) Automatische laststromrückregelung
JPS5714218A (en) Direct-current two-wire proximity switch
KR920702801A (ko) 스위칭 파워 써플라이
JPS56134832A (en) Two-wire photoelectric switch for alternating current and direct current
SU1188873A1 (ru) Способ управлени силовым транзисторным ключом
JPS5585142A (en) Semiconductor fail safe logic circuit
JPS56134834A (en) Alternating current two-wire photoelectric switch
JPS55154866A (en) Current supply circuit for telephone switchboard
KR960024782A (ko) 전원공급장치의 정전압 검출 회로
FR2279287A1 (fr) Unite d'alimentation a intensite constante
ATE11986T1 (de) Gleichspannungswandler.
JPS58114211A (ja) 電源装置
JPS5468959A (en) Two-line ac contactless switch
JPS6432709A (en) Constant current source circuit
JPS57143622A (en) Switching regulator
JPS57143621A (en) Switching regulator
KR960036263A (ko) 링잉 쵸크 컨버터
KR940027275A (ko) 출력전압 안정화 회로를 구비한 스위칭 모드 파워 써플라이