ATE54523T1 - Leitungsspeiseschaltung mit aktiver impedanz und mit erdschlussfehlerschutz. - Google Patents

Leitungsspeiseschaltung mit aktiver impedanz und mit erdschlussfehlerschutz.

Info

Publication number
ATE54523T1
ATE54523T1 AT85300533T AT85300533T ATE54523T1 AT E54523 T1 ATE54523 T1 AT E54523T1 AT 85300533 T AT85300533 T AT 85300533T AT 85300533 T AT85300533 T AT 85300533T AT E54523 T1 ATE54523 T1 AT E54523T1
Authority
AT
Austria
Prior art keywords
ring
amplifier
tip
active impedance
resistive
Prior art date
Application number
AT85300533T
Other languages
English (en)
Inventor
Stanley Daniel Rosenbaum
Calvin Plett
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Application granted granted Critical
Publication of ATE54523T1 publication Critical patent/ATE54523T1/de

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)
  • Amplifiers (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Microwave Amplifiers (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Networks Using Active Elements (AREA)
AT85300533T 1984-03-12 1985-01-25 Leitungsspeiseschaltung mit aktiver impedanz und mit erdschlussfehlerschutz. ATE54523T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA000449393A CA1209732A (en) 1984-03-12 1984-03-12 Active impedance line feed circuit with improved ground fault protection
EP85300533A EP0155074B1 (de) 1984-03-12 1985-01-25 Leitungsspeiseschaltung mit aktiver Impedanz und mit Erdschlussfehlerschutz

Publications (1)

Publication Number Publication Date
ATE54523T1 true ATE54523T1 (de) 1990-07-15

Family

ID=4127382

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85300533T ATE54523T1 (de) 1984-03-12 1985-01-25 Leitungsspeiseschaltung mit aktiver impedanz und mit erdschlussfehlerschutz.

Country Status (6)

Country Link
EP (1) EP0155074B1 (de)
JP (1) JPS60155255U (de)
AT (1) ATE54523T1 (de)
CA (1) CA1209732A (de)
DE (1) DE3578589D1 (de)
TR (1) TR22516A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1257027A (en) * 1987-03-10 1989-07-04 Rolf Meier Compensation circuit for use with an integrating amplifier
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.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1563803A (en) * 1975-11-26 1980-04-02 Post Office Telecommunications transmission and signalling curcuits
DE3032970C2 (de) * 1980-09-02 1987-04-16 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Schaltungsanordnung zur Symmetrierung der Arbeitspunkte bei elektronisch gleichstromgespeisten Anschlußleitungen in Fernmelde-, insbesondere Fernsprechvermittlungsanlagen
GB2087199A (en) * 1980-10-16 1982-05-19 Texas Instruments Ltd Amplifiers for driving balanced lines
DE3138649A1 (de) * 1981-09-29 1983-04-14 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren und schaltungsanordnung zur speisung einer teilnehmerendeinrichtung

Also Published As

Publication number Publication date
EP0155074A3 (en) 1987-04-22
EP0155074B1 (de) 1990-07-11
JPS60155255U (ja) 1985-10-16
EP0155074A2 (de) 1985-09-18
CA1209732A (en) 1986-08-12
TR22516A (tr) 1987-09-17
DE3578589D1 (de) 1990-08-16

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee