JPH0787501B2 - 電話用給電回路 - Google Patents

電話用給電回路

Info

Publication number
JPH0787501B2
JPH0787501B2 JP9700386A JP9700386A JPH0787501B2 JP H0787501 B2 JPH0787501 B2 JP H0787501B2 JP 9700386 A JP9700386 A JP 9700386A JP 9700386 A JP9700386 A JP 9700386A JP H0787501 B2 JPH0787501 B2 JP H0787501B2
Authority
JP
Japan
Prior art keywords
circuit
terminal
voltage
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
JP9700386A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61253969A (ja
Inventor
マルコ・シリゴーニ
バニ・サビオッティ
エミリオ・ロレナ
Original Assignee
エスジ−エス・マイクロエレツトロニカ・エス・ピ−・エ−
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 エスジ−エス・マイクロエレツトロニカ・エス・ピ−・エ− filed Critical エスジ−エス・マイクロエレツトロニカ・エス・ピ−・エ−
Publication of JPS61253969A publication Critical patent/JPS61253969A/ja
Publication of JPH0787501B2 publication Critical patent/JPH0787501B2/ja
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
    • 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)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP9700386A 1985-04-30 1986-04-28 電話用給電回路 Expired - Lifetime JPH0787501B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8520549A IT1214603B (it) 1985-04-30 1985-04-30 Circuito telefonico, integrabile monoliticamente, perl'alimentazione di una linea telefonica d'utente.
IT20549A/85 1985-04-30

Publications (2)

Publication Number Publication Date
JPS61253969A JPS61253969A (ja) 1986-11-11
JPH0787501B2 true JPH0787501B2 (ja) 1995-09-20

Family

ID=11168626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9700386A Expired - Lifetime JPH0787501B2 (ja) 1985-04-30 1986-04-28 電話用給電回路

Country Status (6)

Country Link
US (1) US4841565A (en, 2012)
JP (1) JPH0787501B2 (en, 2012)
DE (1) DE3613913C2 (en, 2012)
FR (1) FR2581279A1 (en, 2012)
GB (1) GB2176373B (en, 2012)
IT (1) IT1214603B (en, 2012)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1248548B (it) * 1991-06-25 1995-01-19 St Microelectronics Srl Circuito elettronico d'interfaccia d'utente, con limitazione di corrente, a caratteristica tensione-corrente bilanciata fuori limitazione e sbilanciata in limitazione.
US6775531B1 (en) 1994-07-21 2004-08-10 Interdigital Technology Corporation Subscriber terminal temperature regulation
ES2263422T3 (es) * 1994-07-21 2006-12-16 Interdigital Technology Corporation Metodo y aparato de control del consumo de energia de una unidad de abonado de un sistema de comunicaciones.
DE19623827C1 (de) * 1996-06-14 1998-01-08 Siemens Ag Elektronische Sprechschaltungsanordnung

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH586983A5 (en, 2012) * 1974-12-23 1977-04-15 Ibm
FR2437757A2 (fr) * 1978-06-26 1980-04-25 Trt Telecom Radio Electr Joncteur d'abonne destine a assurer un couplage en deux fils ou quatre fils avec un central telephonique
US4272656A (en) * 1979-04-05 1981-06-09 Precision Monolithics, Inc. Quasi-resistive battery feed for telephone circuits
JPS5670A (en) * 1979-06-12 1981-01-06 Seiko Epson Corp Magnetic recorder
US4315207A (en) * 1980-06-20 1982-02-09 Advanced Micro Devices, Inc. Current controlled battery feed circuit
US4358645A (en) * 1980-08-05 1982-11-09 Motorola, Inc. Loop sensing circuit for use with a subscriber loop interface circuit
US4476350A (en) * 1981-02-17 1984-10-09 Bell Telephone Laboratories, Incorporated Battery feed circuit
FR2527404B1 (fr) * 1982-05-19 1987-10-23 Cit Alcatel Joncteur d'abonne electronique
JPS5915357A (ja) * 1982-07-19 1984-01-26 Nippon Telegr & Teleph Corp <Ntt> 電流供給回路
SE433285B (sv) * 1982-09-22 1984-05-14 Ericsson Telefon Ab L M Anordning for strommatning av en abonnentapparat
JPS60141006A (ja) * 1983-12-28 1985-07-26 Nec Corp インピ−ダンス合成回路
CA1200335A (en) * 1984-02-13 1986-02-04 Stanley D. Rosenbaum Active impedance line feed circuit
US4558272A (en) * 1984-07-05 1985-12-10 At&T Bell Laboratories Current characteristic shaper
IT1215254B (it) * 1985-03-20 1990-01-31 Ates Componenti Elettron Circuito, integrabile monoliticamente, per la misura di correnti longitudinali e trasversali in una linea ditrasmissione bifilare.

Also Published As

Publication number Publication date
US4841565A (en) 1989-06-20
IT1214603B (it) 1990-01-18
DE3613913C2 (de) 1994-10-20
FR2581279A1 (fr) 1986-10-31
GB2176373A (en) 1986-12-17
FR2581279B1 (en, 2012) 1994-04-22
IT8520549A0 (it) 1985-04-30
DE3613913A1 (de) 1986-10-30
JPS61253969A (ja) 1986-11-11
GB8610627D0 (en) 1986-06-04
GB2176373B (en) 1989-12-13

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