GB2002996B - Power supply circuits - Google Patents

Power supply circuits

Info

Publication number
GB2002996B
GB2002996B GB7832937A GB7832937A GB2002996B GB 2002996 B GB2002996 B GB 2002996B GB 7832937 A GB7832937 A GB 7832937A GB 7832937 A GB7832937 A GB 7832937A GB 2002996 B GB2002996 B GB 2002996B
Authority
GB
United Kingdom
Prior art keywords
power supply
supply circuits
circuits
power
supply
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
GB7832937A
Other versions
GB2002996A (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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Priority to GB7832937A priority Critical patent/GB2002996B/en
Publication of GB2002996A publication Critical patent/GB2002996A/en
Application granted granted Critical
Publication of GB2002996B publication Critical patent/GB2002996B/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Interface Circuits In Exchanges (AREA)
GB7832937A 1977-08-10 1978-08-10 Power supply circuits Expired GB2002996B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7832937A GB2002996B (en) 1977-08-10 1978-08-10 Power supply circuits

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3350277 1977-08-10
GB7832937A GB2002996B (en) 1977-08-10 1978-08-10 Power supply circuits

Publications (2)

Publication Number Publication Date
GB2002996A GB2002996A (en) 1979-02-28
GB2002996B true GB2002996B (en) 1982-01-27

Family

ID=26261899

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7832937A Expired GB2002996B (en) 1977-08-10 1978-08-10 Power supply circuits

Country Status (1)

Country Link
GB (1) GB2002996B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2517150A1 (en) * 1981-11-20 1983-05-27 Thomson Csf Mat Tel MICROPROCESSOR MANAGED MICROPROCESSOR CIRCUIT WITH INTEGRATED 2-WIRE 4-WIRE TRANSMISSION CIRCUIT AND CURRENT LINE BACKUP POWER SUPPLY
FR2518858A1 (en) * 1981-12-23 1983-06-24 Jeumont Schneider DEVICE FOR TRANSMITTING SIGNALS ON A LINE ALSO PROVIDING A CONTINUOUS VOLTAGE SUPPLY
EP1003309A3 (en) * 1998-11-19 2003-09-17 Firma Lingg & Janke OHG Arrangement for coupling to a bus without polarity faults

Also Published As

Publication number Publication date
GB2002996A (en) 1979-02-28

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee