JPH0444862B2 - - Google Patents

Info

Publication number
JPH0444862B2
JPH0444862B2 JP59084515A JP8451584A JPH0444862B2 JP H0444862 B2 JPH0444862 B2 JP H0444862B2 JP 59084515 A JP59084515 A JP 59084515A JP 8451584 A JP8451584 A JP 8451584A JP H0444862 B2 JPH0444862 B2 JP H0444862B2
Authority
JP
Japan
Prior art keywords
circuit
resistor
power supply
operational amplifier
subscriber
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 - Lifetime
Application number
JP59084515A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60229465A (ja
Inventor
Takashi Sato
Mitsutoshi Ayano
Kyoshi Shibuya
Kenji Takato
Shinichi Ito
Toshiro Tojo
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP59084515A priority Critical patent/JPS60229465A/ja
Publication of JPS60229465A publication Critical patent/JPS60229465A/ja
Publication of JPH0444862B2 publication Critical patent/JPH0444862B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP59084515A 1984-04-26 1984-04-26 通話電流供給回路 Granted JPS60229465A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59084515A JPS60229465A (ja) 1984-04-26 1984-04-26 通話電流供給回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59084515A JPS60229465A (ja) 1984-04-26 1984-04-26 通話電流供給回路

Publications (2)

Publication Number Publication Date
JPS60229465A JPS60229465A (ja) 1985-11-14
JPH0444862B2 true JPH0444862B2 (enrdf_load_stackoverflow) 1992-07-23

Family

ID=13832768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59084515A Granted JPS60229465A (ja) 1984-04-26 1984-04-26 通話電流供給回路

Country Status (1)

Country Link
JP (1) JPS60229465A (enrdf_load_stackoverflow)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5389306A (en) * 1977-01-17 1978-08-05 Hitachi Ltd Dc current supplying circuit

Also Published As

Publication number Publication date
JPS60229465A (ja) 1985-11-14

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