AR213892A1 - Circuito de alimentacion de linea telefonica - Google Patents

Circuito de alimentacion de linea telefonica

Info

Publication number
AR213892A1
AR213892A1 AR271282A AR27128278A AR213892A1 AR 213892 A1 AR213892 A1 AR 213892A1 AR 271282 A AR271282 A AR 271282A AR 27128278 A AR27128278 A AR 27128278A AR 213892 A1 AR213892 A1 AR 213892A1
Authority
AR
Argentina
Prior art keywords
supply circuit
telephone line
line supply
telephone
circuit
Prior art date
Application number
AR271282A
Other languages
English (en)
Original Assignee
Int Standard Electric 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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of AR213892A1 publication Critical patent/AR213892A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
    • 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)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephone Function (AREA)
AR271282A 1977-03-02 1978-03-01 Circuito de alimentacion de linea telefonica AR213892A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7706101A FR2382810A1 (fr) 1977-03-02 1977-03-02 Circuit d'alimentation de ligne telephonique avec protection

Publications (1)

Publication Number Publication Date
AR213892A1 true AR213892A1 (es) 1979-03-30

Family

ID=9187455

Family Applications (1)

Application Number Title Priority Date Filing Date
AR271282A AR213892A1 (es) 1977-03-02 1978-03-01 Circuito de alimentacion de linea telefonica

Country Status (8)

Country Link
US (1) US4167654A (es)
AR (1) AR213892A1 (es)
BE (1) BE864426R (es)
BR (1) BR7801240A (es)
CH (1) CH627894A5 (es)
ES (1) ES467492A1 (es)
FR (1) FR2382810A1 (es)
MX (1) MX143920A (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7807706A (nl) * 1978-07-19 1980-01-22 Philips Nv Voedingsbrug met d.c.-compensatie voor beide richtin- gen van de voedingstroom.
US4264787A (en) * 1979-12-31 1981-04-28 Akzona Incorporated Hazardous voltage protection circuit
NL8001136A (nl) * 1980-02-26 1981-09-16 Philips Nv Schakeling voor toepassing in een telefoontoestel.
US4306119A (en) * 1980-07-03 1981-12-15 Bell Telephone Laboratories, Incorporated Telephone outpulsing circuit
NL8103419A (nl) * 1981-04-01 1982-11-01 Philips Nv Lijntestcircuit voor een abonneetelefoontoestel.
DE3237681C2 (de) * 1982-10-12 1986-03-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Speiseschaltung für einen veränderlichen Verbraucherwiderstand und mit unterschiedlich wirkendem Ausgangswiderstand
NL8204377A (nl) * 1982-11-12 1984-06-01 Philips Nv Abonneecircuit voor een telefoonnet.
US4618743A (en) * 1984-11-27 1986-10-21 Harris Corporation Monolithic transient protector
US4634814A (en) * 1985-02-04 1987-01-06 Gte Communication Systems Corp. Surge protected electronic switch for telephone voiceband circuits
AR241360A1 (es) * 1986-06-30 1992-05-29 Siemens Ag Disposicion de circuito para desconectar los hilos de una linea de conexion de abonado de una red telefonica digital tiempo-multiplex con respecto a un circuito de alimentacion.
DE3712572C1 (de) * 1987-04-14 1988-08-04 Telefonbau & Normalzeit Gmbh Schaltungsanordnung fuer den UEberspannungsschutz und die Rufstromeinspeisung an einer Anschlussleitung fuer Fernmelde-,insbesondere Fernsprechvermittlungsanlagen
CA1333189C (en) * 1987-06-17 1994-11-22 Toshiro Tojo Protection circuit for battery feed circuit
US5359655A (en) * 1991-06-06 1994-10-25 U.S. Philips Corporation Supply circuit for a telecommunication line, providing highly symmetrical and rapid response to line voltage disturbances
KR20000064316A (ko) * 1996-09-03 2000-11-06 요트.게.아. 롤페즈 전자 임피던스 전원 회로

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE788539A (fr) * 1971-09-10 1973-03-08 Westinghouse Electric Corp Systeme electrique a barriere d'energie
US3787739A (en) * 1972-12-29 1974-01-22 Microsystems Int Ltd Coupler circuit for telephone networks and the like
FR2254168A1 (en) * 1973-12-11 1975-07-04 Ass Ouvriers Instr Precision Telephone line supply device - is an active electronic device acting as resistance for direct current and high impedance for A.C.
CA1032221A (en) * 1974-06-14 1978-05-30 Mitel Canada Limited Telephone line impedance regulator

Also Published As

Publication number Publication date
MX143920A (es) 1981-07-31
CH627894A5 (de) 1982-01-29
BE864426R (fr) 1978-09-01
BR7801240A (pt) 1978-10-31
US4167654A (en) 1979-09-11
FR2382810B1 (es) 1983-01-07
ES467492A1 (es) 1978-10-16
FR2382810A1 (fr) 1978-09-29

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