BE880144R - ELECTRONIC POWER BRIDGE FOR TELEPHONE LINE - Google Patents

ELECTRONIC POWER BRIDGE FOR TELEPHONE LINE

Info

Publication number
BE880144R
BE880144R BE2/58218A BE2058218A BE880144R BE 880144 R BE880144 R BE 880144R BE 2/58218 A BE2/58218 A BE 2/58218A BE 2058218 A BE2058218 A BE 2058218A BE 880144 R BE880144 R BE 880144R
Authority
BE
Belgium
Prior art keywords
telephone line
electronic power
power bridge
bridge
electronic
Prior art date
Application number
BE2/58218A
Other languages
French (fr)
Inventor
D M A F Bolus
J C Comte
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of BE880144R publication Critical patent/BE880144R/en

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)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
BE2/58218A 1978-11-22 1979-11-20 ELECTRONIC POWER BRIDGE FOR TELEPHONE LINE BE880144R (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7832931A FR2442557A1 (en) 1978-11-22 1978-11-22 Automatic telephone line asymmetrical signal balancing - using synthetic centre tap on power supply and regulation of supply transistors

Publications (1)

Publication Number Publication Date
BE880144R true BE880144R (en) 1980-05-20

Family

ID=9215187

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/58218A BE880144R (en) 1978-11-22 1979-11-20 ELECTRONIC POWER BRIDGE FOR TELEPHONE LINE

Country Status (3)

Country Link
BE (1) BE880144R (en)
DE (1) DE2937424A1 (en)
FR (1) FR2442557A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7903662A (en) * 1979-05-10 1980-11-12 Philips Nv LINE CIRCUIT.
DE3104138A1 (en) * 1981-02-06 1982-08-19 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg SUBSCRIBE CIRCUIT
AU554389B2 (en) * 1981-09-18 1986-08-21 Alcatel N.V. Control and filter circuit
DE3744130C2 (en) * 1987-12-24 1996-04-11 Licentia Gmbh Circuit arrangement for reducing longitudinal stresses on two-wire lines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT291356B (en) * 1969-05-09 1971-07-12 Itt Austria Circuit arrangement for the automatic maintenance of the symmetry of supply circuits for subscriber stations in telecommunication systems using transistors
DE2838038A1 (en) * 1978-08-31 1980-03-13 Siemens Ag Input circuit for telephone wire connection - has transistors, connected via collectors, to two wire and via transformer to four wire cable with supply to base and emitters
DE2839892C2 (en) * 1978-09-13 1982-06-09 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for carrying out a method for coil, relay contact and transformer-free ringing current and loop current feed

Also Published As

Publication number Publication date
DE2937424A1 (en) 1980-06-04
FR2442557A1 (en) 1980-06-20

Similar Documents

Publication Publication Date Title
FR2620296B1 (en) ELECTRONIC CIRCUIT BOX
FR2553953B1 (en) BRIDGE CIRCUIT FOR THE INTERCONNECTION OF NETWORKS
FR2542548B1 (en) TELEPHONE LINE INTERFACE CIRCUIT
FR2581274B1 (en) SUPPRESSION CIRCUIT WITH ADAPTATION BRIDGE FOR TELECOMMUNICATIONS.
FR2485309B1 (en) BATTERY SUPPLY CIRCUIT FOR TELEPHONE LINE
FR2406358B1 (en) INTERFACE CIRCUIT FOR TELEPHONE SET
FR2573948B1 (en) EXCHANGER DEVICE FOR ELECTRONIC BOX
BE889373A (en) CLOCK SELECTION CIRCUIT
FR2416600B1 (en) TELEPHONE LINE CIRCUIT
PT70144A (en) ELECTRIC CIRCUIT FOR IGNITIONING A DETONATOR
BE879204A (en) SUPPLY BRIDGE FOR SUBSCRIBER LINE
GB2015305B (en) Telephone line circuit
FR2527404B1 (en) ELECTRONIC SUBSCRIBER
BE876692A (en) ELECTRONIC TELEPHONE CIRCUIT FOR SUBSCRIBER LINE
FR2456439B1 (en) CIRCUIT FOR SUBSCRIBER LINE
FR2460078B1 (en) ELECTRONIC SUBSCRIBER
BE880144R (en) ELECTRONIC POWER BRIDGE FOR TELEPHONE LINE
BE879983A (en) ELECTRONIC POWER BRIDGE FOR TELEPHONE LINE
BE867538A (en) CIRCUIT FOR POWERING A SUBSCRIBER JUNCTION
FR2415866B1 (en) TRANSFORMER FOR ELECTRONIC BALLAST CIRCUIT
FR2471100B1 (en) TELEPHONE LINE SUPPLY CIRCUIT
GB2018093B (en) Telephone subscriber's line circuit
FR2551604B1 (en) TELEXING DEVICE FOR ELECTRONIC TELEPHONE TERMINAL
FR2491704B1 (en) SUPPLY CIRCUIT OF A TELEPHONE LINE
BE878621A (en) PROGRAMMABLE CLOCK CIRCUIT