GB917509A - A circuit arrangement for the supply of current to amplifiers in subscribers' stations - Google Patents

A circuit arrangement for the supply of current to amplifiers in subscribers' stations

Info

Publication number
GB917509A
GB917509A GB4348660A GB4348660A GB917509A GB 917509 A GB917509 A GB 917509A GB 4348660 A GB4348660 A GB 4348660A GB 4348660 A GB4348660 A GB 4348660A GB 917509 A GB917509 A GB 917509A
Authority
GB
United Kingdom
Prior art keywords
battery
potential
increases
current
amplifier
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4348660A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens 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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB917509A publication Critical patent/GB917509A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/44—Arrangements for feeding power to a repeater along the transmission line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
GB4348660A 1959-12-18 1960-12-16 A circuit arrangement for the supply of current to amplifiers in subscribers' stations Expired GB917509A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES66330A DE1134420B (de) 1959-12-18 1959-12-18 Schaltungsanordnung zur Stromversorgung von Verstaerkern in Teilnehmerstellen

Publications (1)

Publication Number Publication Date
GB917509A true GB917509A (en) 1963-02-06

Family

ID=7498737

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4348660A Expired GB917509A (en) 1959-12-18 1960-12-16 A circuit arrangement for the supply of current to amplifiers in subscribers' stations

Country Status (5)

Country Link
BE (1) BE598244A (enrdf_load_html_response)
CH (1) CH384640A (enrdf_load_html_response)
DE (1) DE1134420B (enrdf_load_html_response)
GB (1) GB917509A (enrdf_load_html_response)
NL (1) NL259106A (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064366A (en) * 1976-01-15 1977-12-20 Winster Engineering Group Limited Intrinsically safe telephone systems
US4258332A (en) * 1976-10-15 1981-03-24 Wheelock Signals, Inc. Loudspeaker amplifier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3244240C1 (de) * 1982-11-08 1984-03-15 Sodeco-Saia AG, 1211 Genève Fernsprechstelle mit niedrigem Speiseleistungsverbrauch

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL225553A (enrdf_load_html_response) * 1957-09-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064366A (en) * 1976-01-15 1977-12-20 Winster Engineering Group Limited Intrinsically safe telephone systems
US4258332A (en) * 1976-10-15 1981-03-24 Wheelock Signals, Inc. Loudspeaker amplifier

Also Published As

Publication number Publication date
DE1134420B (de) 1962-08-09
NL259106A (enrdf_load_html_response)
CH384640A (de) 1964-11-30
BE598244A (fr) 1961-04-14

Similar Documents

Publication Publication Date Title
US3916110A (en) Line circuit employing constant current devices for battery feed
ES263736A1 (es) Sistema telefënico
GB917509A (en) A circuit arrangement for the supply of current to amplifiers in subscribers' stations
GB742209A (en) Transistor relay devices
ES464741A1 (es) Equipo de linea de abonado para central telefonica.
GB826758A (en) Improved arrangement in automatic telephone and telegraph systems
GB679875A (en) Improvements in or relating to an arrangement for telephone subscribers sets
GB798055A (en) Negative-impedance repeater using a transistor amplifier
GB736934A (en) Improvements in or relating to trigger transistor circuits
US3270142A (en) Variable impedance electrical circuits
GB773850A (en) Improvements in or relating to telephone set circuits
GB759566A (en) Improvements in or relating to circuit arrangements employing transistors for controlling electric loads
GB770605A (en) Improvements in or relating to multistage cascade rectifier circuits
GB1472442A (en) Power supply circuits
GB706776A (en) Improvements in or relating to radio receivers
GB1081920A (en) Electric relay
US1695175A (en) Radio receiving station
GB805726A (en) Improvements in or relating to circuit arrangements for automatically regulating sidetone damping in telephone stations
GB819490A (en) Improvements in or relating to carrier communication systems
GB811413A (en) Telephone sub-station including transistors
GB1001575A (en) A telephone set
GB933043A (en) Circuit arrangement for supplying a distant load with power from a central station in telecommunication systems
GB879893A (en) Power supply for electronic equipment
GB853033A (en) Improvements in power feeding arrangements for telecommunication systems
GB1251150A (enrdf_load_html_response)