ATE52644T1 - Leitungsspeiseschaltung mit aktiver impedanz. - Google Patents

Leitungsspeiseschaltung mit aktiver impedanz.

Info

Publication number
ATE52644T1
ATE52644T1 AT85300263T AT85300263T ATE52644T1 AT E52644 T1 ATE52644 T1 AT E52644T1 AT 85300263 T AT85300263 T AT 85300263T AT 85300263 T AT85300263 T AT 85300263T AT E52644 T1 ATE52644 T1 AT E52644T1
Authority
AT
Austria
Prior art keywords
direct current
tip
communication line
line
active impedance
Prior art date
Application number
AT85300263T
Other languages
English (en)
Inventor
Stanley Daniel Rosenbaum
Zdenek Holy
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 ATE52644T1 publication Critical patent/ATE52644T1/de

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/001Current supply source at the exchanger providing current to substations
    • H04M19/005Feeding arrangements without the use of line transformers
AT85300263T 1984-02-13 1985-01-15 Leitungsspeiseschaltung mit aktiver impedanz. ATE52644T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA000447319A CA1200335A (en) 1984-02-13 1984-02-13 Active impedance line feed circuit
EP85300263A EP0152178B1 (de) 1984-02-13 1985-01-15 Leitungsspeiseschaltung mit aktiver Impedanz

Publications (1)

Publication Number Publication Date
ATE52644T1 true ATE52644T1 (de) 1990-05-15

Family

ID=4127175

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85300263T ATE52644T1 (de) 1984-02-13 1985-01-15 Leitungsspeiseschaltung mit aktiver impedanz.

Country Status (6)

Country Link
EP (1) EP0152178B1 (de)
JP (1) JPS60142552U (de)
AT (1) ATE52644T1 (de)
CA (1) CA1200335A (de)
DE (1) DE3577629D1 (de)
TR (1) TR22463A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1214603B (it) * 1985-04-30 1990-01-18 Ates Componenti Elettron Circuito telefonico, integrabile monoliticamente, perl'alimentazione di una linea telefonica d'utente.
AT386307B (de) * 1986-05-23 1988-08-10 Siemens Ag Oesterreich Fernsprechteilnehmerschaltung

Family Cites Families (3)

* 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
CA1179078A (en) * 1982-06-04 1984-12-04 Stanley D. Rosenbaum Active impedance line feed circuit
CA1178386A (en) * 1982-06-07 1984-11-20 Stanley D. Rosenbaum Active impedance transformer assisted line feed circuit

Also Published As

Publication number Publication date
DE3577629D1 (de) 1990-06-13
EP0152178B1 (de) 1990-05-09
TR22463A (tr) 1987-07-17
EP0152178A2 (de) 1985-08-21
EP0152178A3 (en) 1987-04-15
JPS60142552U (ja) 1985-09-20
CA1200335A (en) 1986-02-04

Similar Documents

Publication Publication Date Title
ATE84178T1 (de) Leitungsspeiseschaltung mit aktiver impedanz.
ES8106387A1 (es) Un aparato para regular la corriente suministrada a una li- nea telefonica
DE3850201D1 (de) Leitungsschnittstellenschaltung.
ATE14178T1 (de) Verfahren und schaltungsanordnung zur stromversorgung einer zweidraht-fernmeldeleitung.
US4631359A (en) Arrangement for supplying current to a subscriber telephone set
US4190822A (en) Current telemetering interface apparatus
ATE52644T1 (de) Leitungsspeiseschaltung mit aktiver impedanz.
US4577064A (en) Auto-balance circuit for battery feed in a telephone circuit
DE3575832D1 (de) Leitungsschaltung fuer schleifenstromzufuehrung an einer zweidraht-telefonteilnehmerleitung.
ATE21603T1 (de) Leitungsspeiseschaltung aktiver impedanz.
US4345117A (en) Telephone line feed circuit
US4560834A (en) Current limiter circuit for battery feed in a telephone circuit
GB2172472A (en) Constant current line circuit
ATE54523T1 (de) Leitungsspeiseschaltung mit aktiver impedanz und mit erdschlussfehlerschutz.
WO1985000684A1 (en) Two wire circuit having an adjustable span
KR870001707A (ko) 회로의 응답과 이득을 독립적으로 제어 할 수 있는 연산증폭기
JPS574610A (en) Automatic gain controlling circuit
JPS568912A (en) Gain control circuit
ATE47266T1 (de) Uebertragungsunterstuetzte leitungsspeiseschaltung ativer impedanz mit filterfunktion fuer ueberwachungssignale.
JPS57146325A (en) Constant current circuit
GB1186735A (en) Automatic Arc Length Control
JPS5755605A (en) Differential amplifier
ATE41578T1 (de) Schaltungsanordnung mit einer speiseschaltung zur speisung eines lastwiderstandes.
JPS56114413A (en) Current control type variable gain amplifying circuit
JPS5660108A (en) Gain control circuit

Legal Events

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