JPS56140765A - Circuit current supply circuit - Google Patents

Circuit current supply circuit

Info

Publication number
JPS56140765A
JPS56140765A JP4216180A JP4216180A JPS56140765A JP S56140765 A JPS56140765 A JP S56140765A JP 4216180 A JP4216180 A JP 4216180A JP 4216180 A JP4216180 A JP 4216180A JP S56140765 A JPS56140765 A JP S56140765A
Authority
JP
Japan
Prior art keywords
circuit
current supply
voltage
fet
supply circuit
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.)
Granted
Application number
JP4216180A
Other languages
English (en)
Other versions
JPS6251548B2 (ja
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 JP4216180A priority Critical patent/JPS56140765A/ja
Publication of JPS56140765A publication Critical patent/JPS56140765A/ja
Publication of JPS6251548B2 publication Critical patent/JPS6251548B2/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)
JP4216180A 1980-04-01 1980-04-01 Circuit current supply circuit Granted JPS56140765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4216180A JPS56140765A (en) 1980-04-01 1980-04-01 Circuit current supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4216180A JPS56140765A (en) 1980-04-01 1980-04-01 Circuit current supply circuit

Publications (2)

Publication Number Publication Date
JPS56140765A true JPS56140765A (en) 1981-11-04
JPS6251548B2 JPS6251548B2 (ja) 1987-10-30

Family

ID=12628224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4216180A Granted JPS56140765A (en) 1980-04-01 1980-04-01 Circuit current supply circuit

Country Status (1)

Country Link
JP (1) JPS56140765A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0448466A (ja) * 1990-06-13 1992-02-18 Canon Inc 磁気記録再生装置のテープローディング機構

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5693476A (en) * 1979-11-28 1981-07-29 Int Standard Electric Corp Control current supply device for telephone line

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5693476A (en) * 1979-11-28 1981-07-29 Int Standard Electric Corp Control current supply device for telephone line

Also Published As

Publication number Publication date
JPS6251548B2 (ja) 1987-10-30

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