JPH0153836B2 - - Google Patents

Info

Publication number
JPH0153836B2
JPH0153836B2 JP3374683A JP3374683A JPH0153836B2 JP H0153836 B2 JPH0153836 B2 JP H0153836B2 JP 3374683 A JP3374683 A JP 3374683A JP 3374683 A JP3374683 A JP 3374683A JP H0153836 B2 JPH0153836 B2 JP H0153836B2
Authority
JP
Japan
Prior art keywords
current
terminal
mirror circuit
operational amplifier
voltage conversion
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
JP3374683A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59160394A (ja
Inventor
Tadao Imai
Hiroyasu Uehara
Toshio Hayashi
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.)
Oki Electric Industry Co Ltd
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
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, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP58033746A priority Critical patent/JPS59160394A/ja
Publication of JPS59160394A publication Critical patent/JPS59160394A/ja
Publication of JPH0153836B2 publication Critical patent/JPH0153836B2/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
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
JP58033746A 1983-03-03 1983-03-03 不平衡・平衡変換回路 Granted JPS59160394A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58033746A JPS59160394A (ja) 1983-03-03 1983-03-03 不平衡・平衡変換回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58033746A JPS59160394A (ja) 1983-03-03 1983-03-03 不平衡・平衡変換回路

Publications (2)

Publication Number Publication Date
JPS59160394A JPS59160394A (ja) 1984-09-11
JPH0153836B2 true JPH0153836B2 (enExample) 1989-11-15

Family

ID=12394975

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58033746A Granted JPS59160394A (ja) 1983-03-03 1983-03-03 不平衡・平衡変換回路

Country Status (1)

Country Link
JP (1) JPS59160394A (enExample)

Also Published As

Publication number Publication date
JPS59160394A (ja) 1984-09-11

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