NL7810086A - Voedingsbrug voor een abonneestroomloop. - Google Patents

Voedingsbrug voor een abonneestroomloop. Download PDF

Info

Publication number
NL7810086A
NL7810086A NL7810086A NL7810086A NL7810086A NL 7810086 A NL7810086 A NL 7810086A NL 7810086 A NL7810086 A NL 7810086A NL 7810086 A NL7810086 A NL 7810086A NL 7810086 A NL7810086 A NL 7810086A
Authority
NL
Netherlands
Prior art keywords
supply
input
circuit
resistor
output
Prior art date
Application number
NL7810086A
Other languages
English (en)
Dutch (nl)
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
Priority to NL7810086A priority Critical patent/NL7810086A/nl
Priority to US06/077,470 priority patent/US4287393A/en
Priority to FR7924099A priority patent/FR2438394A1/fr
Priority to DK413079A priority patent/DK413079A/da
Priority to BR7906373A priority patent/BR7906373A/pt
Priority to GB7903422A priority patent/GB2032733B/en
Priority to AU51415/79A priority patent/AU528288B2/en
Priority to CA000336884A priority patent/CA1138139A/en
Priority to DE2940025A priority patent/DE2940025C3/de
Priority to IT26247/79A priority patent/IT1193352B/it
Priority to SE7908193A priority patent/SE436961B/xx
Priority to CH892179A priority patent/CH646827A5/de
Priority to JP54127439A priority patent/JPS5831789B2/ja
Priority to BE0/197477A priority patent/BE879204A/fr
Publication of NL7810086A publication Critical patent/NL7810086A/nl

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)
  • Amplifiers (AREA)
NL7810086A 1978-10-06 1978-10-06 Voedingsbrug voor een abonneestroomloop. NL7810086A (nl)

Priority Applications (14)

Application Number Priority Date Filing Date Title
NL7810086A NL7810086A (nl) 1978-10-06 1978-10-06 Voedingsbrug voor een abonneestroomloop.
US06/077,470 US4287393A (en) 1978-10-06 1979-09-20 Transmission bridge for a subscriber's circuit
FR7924099A FR2438394A1 (fr) 1978-10-06 1979-09-27 Pont d'alimentation pour ligne d'abonne
DK413079A DK413079A (da) 1978-10-06 1979-10-02 Transmissionsbro til en abonnentkreds
BR7906373A BR7906373A (pt) 1978-10-06 1979-10-03 Ponte de transmissao para um circuito de assinante
GB7903422A GB2032733B (en) 1978-10-06 1979-10-03 Transmission bridges
AU51415/79A AU528288B2 (en) 1978-10-06 1979-10-03 Transmission bridge for a subscribers circuit
CA000336884A CA1138139A (en) 1978-10-06 1979-10-03 Transmission bridge for a subscriber's circuit
DE2940025A DE2940025C3 (de) 1978-10-06 1979-10-03 Speisebrücke für einen Teilnehmerstromkreis
IT26247/79A IT1193352B (it) 1978-10-06 1979-10-03 Ponte di trasmissione per un circuito di abbonato
SE7908193A SE436961B (sv) 1978-10-06 1979-10-03 Transmissionsbrygga for en abonnentkrets
CH892179A CH646827A5 (de) 1978-10-06 1979-10-03 Speisebruecke fuer einen teilnehmerstromkreis.
JP54127439A JPS5831789B2 (ja) 1978-10-06 1979-10-04 加入者回路用伝送ブリツジ
BE0/197477A BE879204A (fr) 1978-10-06 1979-10-04 Pont d'alimentation pour ligne d'abonne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7810086 1978-10-06
NL7810086A NL7810086A (nl) 1978-10-06 1978-10-06 Voedingsbrug voor een abonneestroomloop.

Publications (1)

Publication Number Publication Date
NL7810086A true NL7810086A (nl) 1980-04-09

Family

ID=19831672

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7810086A NL7810086A (nl) 1978-10-06 1978-10-06 Voedingsbrug voor een abonneestroomloop.

Country Status (14)

Country Link
US (1) US4287393A (de)
JP (1) JPS5831789B2 (de)
AU (1) AU528288B2 (de)
BE (1) BE879204A (de)
BR (1) BR7906373A (de)
CA (1) CA1138139A (de)
CH (1) CH646827A5 (de)
DE (1) DE2940025C3 (de)
DK (1) DK413079A (de)
FR (1) FR2438394A1 (de)
GB (1) GB2032733B (de)
IT (1) IT1193352B (de)
NL (1) NL7810086A (de)
SE (1) SE436961B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491704B1 (fr) * 1980-10-03 1985-06-07 Constr Telephoniques Circuit d'alimentation d'une ligne telephonique
DE3116783C2 (de) * 1981-04-28 1983-09-01 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung für eine Teilnehmeranschlußschaltung für Fernsprechanlagen
US4431868A (en) * 1981-07-09 1984-02-14 International Telephone And Telegraph Corporation Solid state telephone line interface circuit with ringing capability
NL8103572A (nl) * 1981-07-29 1983-02-16 Philips Nv Drijverschakeling.
DE3473803D1 (en) * 1984-06-20 1988-10-06 Ibm Detection circuit for current varations
JPS61154347A (ja) * 1984-12-27 1986-07-14 Fujitsu Ltd 交換機の給電回路
AT386307B (de) * 1986-05-23 1988-08-10 Siemens Ag Oesterreich Fernsprechteilnehmerschaltung
US4852160A (en) * 1987-03-03 1989-07-25 Kiko Frederick J Channel unit interface circuit
US5586181A (en) * 1990-09-04 1996-12-17 Tollgrade Communications, Inc. Metallic channel unit network
US5457743A (en) * 1990-09-04 1995-10-10 Tollgrade Communications, Inc. Metallic channel unit network
US5202919A (en) * 1990-09-04 1993-04-13 Tollgrade Communications, Inc. Metallic channel unit network
US5557672A (en) * 1993-03-10 1996-09-17 Antec Corporation Channel interface unit
DE19733250A1 (de) * 1997-08-01 1999-02-04 Deutsche Telephonwerk Kabel Schaltungsanordnung für eine Netzabschlußeinheit
US8847705B2 (en) * 2009-11-02 2014-09-30 Matsue Elmec Corporation Common mode filter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH586984A5 (de) * 1974-12-23 1977-04-15 Ibm
GB1563802A (en) * 1975-11-10 1980-04-02 Post Office Electronic current feed circuit
US4007335A (en) * 1975-11-12 1977-02-08 Bell Telephone Laboratories, Incorporated Telephone line battery feed circuit
US4041252A (en) * 1976-06-07 1977-08-09 North Electric Company Transformerless two-wire/four-wire hybrid with DC sourcing capability
FR2363952A1 (fr) * 1976-09-03 1978-03-31 Thomson Csf Circuit de ligne telephonique
DE2655005C3 (de) * 1976-12-02 1980-04-17 Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin Schaltungsanordnung für eine elektronische Teilnehmerspeisung
FR2414832A1 (fr) * 1978-01-13 1979-08-10 Labo Cent Telecommunicat Pont d'alimentation pour ligne telephonique
GB2013000A (en) * 1978-01-20 1979-08-01 Hitachi Ltd Dc D.C. magnetic field cancellation circuit

Also Published As

Publication number Publication date
SE436961B (sv) 1985-01-28
DE2940025C3 (de) 1982-02-11
BE879204A (fr) 1980-04-04
JPS5550769A (en) 1980-04-12
IT1193352B (it) 1988-06-15
JPS5831789B2 (ja) 1983-07-08
FR2438394B1 (de) 1983-02-18
GB2032733B (en) 1982-09-29
SE7908193L (sv) 1980-04-07
US4287393A (en) 1981-09-01
CH646827A5 (de) 1984-12-14
GB2032733A (en) 1980-05-08
DE2940025A1 (de) 1980-04-10
FR2438394A1 (fr) 1980-04-30
AU528288B2 (en) 1983-04-21
DK413079A (da) 1980-04-07
CA1138139A (en) 1982-12-21
DE2940025B2 (de) 1981-06-19
AU5141579A (en) 1980-04-17
BR7906373A (pt) 1980-06-24
IT7926247A0 (it) 1979-10-03

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BC A request for examination has been filed
BI The patent application has been withdrawn