JPS637498B2 - - Google Patents

Info

Publication number
JPS637498B2
JPS637498B2 JP4215780A JP4215780A JPS637498B2 JP S637498 B2 JPS637498 B2 JP S637498B2 JP 4215780 A JP4215780 A JP 4215780A JP 4215780 A JP4215780 A JP 4215780A JP S637498 B2 JPS637498 B2 JP S637498B2
Authority
JP
Japan
Prior art keywords
voltage
circuit
output
line
current
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
JP4215780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56140763A (en
Inventor
Kazuo Hamasato
Shogo Usuda
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4215780A priority Critical patent/JPS56140763A/ja
Publication of JPS56140763A publication Critical patent/JPS56140763A/ja
Publication of JPS637498B2 publication Critical patent/JPS637498B2/ja
Granted legal-status Critical Current

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
    • H04M19/006—Circuits for increasing the range of current supply source

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP4215780A 1980-04-01 1980-04-01 Supply system of circuit current Granted JPS56140763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4215780A JPS56140763A (en) 1980-04-01 1980-04-01 Supply system of circuit current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4215780A JPS56140763A (en) 1980-04-01 1980-04-01 Supply system of circuit current

Publications (2)

Publication Number Publication Date
JPS56140763A JPS56140763A (en) 1981-11-04
JPS637498B2 true JPS637498B2 (enrdf_load_stackoverflow) 1988-02-17

Family

ID=12628105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4215780A Granted JPS56140763A (en) 1980-04-01 1980-04-01 Supply system of circuit current

Country Status (1)

Country Link
JP (1) JPS56140763A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS56140763A (en) 1981-11-04

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