SE7807288L - Matningskrets for en abonnentlinjekrets - Google Patents

Matningskrets for en abonnentlinjekrets

Info

Publication number
SE7807288L
SE7807288L SE7807288A SE7807288A SE7807288L SE 7807288 L SE7807288 L SE 7807288L SE 7807288 A SE7807288 A SE 7807288A SE 7807288 A SE7807288 A SE 7807288A SE 7807288 L SE7807288 L SE 7807288L
Authority
SE
Sweden
Prior art keywords
circuit
supply
line
subscriber line
supply circuit
Prior art date
Application number
SE7807288A
Other languages
Unknown language ( )
English (en)
Inventor
E C Dijkmans
K-D K Brockmann
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of SE7807288L publication Critical patent/SE7807288L/sv

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
    • H04M19/008—Using DC/DC converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Rectifiers (AREA)
SE7807288A 1978-03-06 1978-06-28 Matningskrets for en abonnentlinjekrets SE7807288L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7802421A NL7802421A (nl) 1978-03-06 1978-03-06 Voedingsschakeling voor een abonneelijnstroom- loop.

Publications (1)

Publication Number Publication Date
SE7807288L true SE7807288L (sv) 1979-09-07

Family

ID=19830440

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7807288A SE7807288L (sv) 1978-03-06 1978-06-28 Matningskrets for en abonnentlinjekrets

Country Status (10)

Country Link
US (1) US4238644A (sv)
JP (1) JPS54118713A (sv)
AU (1) AU512887B2 (sv)
BE (1) BE867538A (sv)
CA (1) CA1109172A (sv)
DE (1) DE2826763C2 (sv)
FR (1) FR2419626A1 (sv)
GB (1) GB1557148A (sv)
NL (1) NL7802421A (sv)
SE (1) SE7807288L (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5680993A (en) * 1979-12-05 1981-07-02 Fujitsu Ltd State monitor system
US4759059A (en) * 1984-06-01 1988-07-19 Christensen Larry B Analog telephone circuit for digital telephone system
US4993064A (en) * 1987-06-15 1991-02-12 Northern Telecom Limited Subscriber line interface circuit and transformer therefor northern telecom limited
JP2711897B2 (ja) * 1989-05-22 1998-02-10 オリジン電気株式会社 進行波管用電源装置
KR940001430B1 (ko) * 1991-04-23 1994-02-23 삼성전자 주식회사 무선전화기에서 정전대피 회로 및 방법
US6633642B1 (en) * 1999-05-11 2003-10-14 Fluke Corporation Balance network directional coupler system and method
CA2395302A1 (en) * 1999-12-22 2001-06-28 Aharon M. Agizim Remote line feeding

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE700280C (de) * 1938-02-06 1940-12-17 Normalzeit G M B H Schaltungsanordnung fuer aus einem Wechselstromnetz gespeiste Gleichstromanlagen
US2357418A (en) * 1942-05-29 1944-09-05 Standard Telephones Cables Ltd Rectifier and circuit
DE1069214B (de) * 1955-09-17 1959-11-19 Antoi., zugl Schaltungsanordnung ziuim Regeln des Speisestroms für zentrallgespeiste Anschlußstellen in Fernmeldeanlagen
FR1525156A (fr) * 1967-03-13 1968-05-17 Constr Telephoniques Perfectionnements aux systèmes de sélection pour circuits ou équipements électriques
DE2103851C3 (de) * 1971-01-27 1973-09-20 Siemens Ag, 1000 Berlin U. 8000 Muenchen Schaltungsanordnung zur Speisung von an Leitungen in Fernsprechvermittlungsanlagen angeschlossenen Einrichtungen
DE2241136C3 (de) * 1972-08-22 1979-06-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zum Erzeugen einer konstanten Gleichspannung aus einer getasteten Gleichspannung
DE2347696C3 (de) * 1973-09-21 1978-12-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zum Speisen von Teilnehmeranschlußleitungen in Fernsprechvermittlungsanlagen
CA1013080A (en) * 1973-11-13 1977-06-28 Gte Automatic Electric Laboratories Incorporated Communication system interface circuits
JPS5636078Y2 (sv) * 1974-09-11 1981-08-25
JPS52119805A (en) * 1976-03-31 1977-10-07 Anaconda Co Loop current detector
FR2355423A1 (fr) * 1976-06-17 1978-01-13 Jeumont Schneider Equipement de ligne d'abonne pour central telephonique
FR2371840A1 (fr) * 1976-10-04 1978-06-16 Ibm France Circuit d'interface
FR2372554A1 (fr) * 1976-11-25 1978-06-23 Jeumont Schneider Equipement de ligne d'abonne pour central telephonique
US4084217A (en) * 1977-04-19 1978-04-11 Bbc Brown, Boveri & Company, Limited Alternating-current fed power supply

Also Published As

Publication number Publication date
GB1557148A (en) 1979-12-05
JPS54118713A (en) 1979-09-14
FR2419626B1 (sv) 1983-02-04
CA1109172A (en) 1981-09-15
DE2826763A1 (de) 1979-09-13
DE2826763C2 (de) 1984-02-02
AU3672878A (en) 1979-12-06
BE867538A (fr) 1978-11-27
FR2419626A1 (fr) 1979-10-05
AU512887B2 (en) 1980-10-30
NL7802421A (nl) 1979-09-10
US4238644A (en) 1980-12-09

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