JPS53100708A - Current supply circuit - Google Patents

Current supply circuit

Info

Publication number
JPS53100708A
JPS53100708A JP1462877A JP1462877A JPS53100708A JP S53100708 A JPS53100708 A JP S53100708A JP 1462877 A JP1462877 A JP 1462877A JP 1462877 A JP1462877 A JP 1462877A JP S53100708 A JPS53100708 A JP S53100708A
Authority
JP
Japan
Prior art keywords
supply circuit
current supply
current
supplying
communication terminal
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
JP1462877A
Other languages
Japanese (ja)
Other versions
JPS584866B2 (en
Inventor
Yasunobu Suzuki
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
Original Assignee
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP52014628A priority Critical patent/JPS584866B2/en
Publication of JPS53100708A publication Critical patent/JPS53100708A/en
Publication of JPS584866B2 publication Critical patent/JPS584866B2/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
    • H04M19/001—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)

Abstract

PURPOSE:To obtain a small-size and economical electromagnetic element, by supplying the DC current to the communication terminal unit of the telephone set, etc. through the semiconductor circuit.
JP52014628A 1977-02-15 1977-02-15 current supply circuit Expired JPS584866B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52014628A JPS584866B2 (en) 1977-02-15 1977-02-15 current supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52014628A JPS584866B2 (en) 1977-02-15 1977-02-15 current supply circuit

Publications (2)

Publication Number Publication Date
JPS53100708A true JPS53100708A (en) 1978-09-02
JPS584866B2 JPS584866B2 (en) 1983-01-28

Family

ID=11866451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52014628A Expired JPS584866B2 (en) 1977-02-15 1977-02-15 current supply circuit

Country Status (1)

Country Link
JP (1) JPS584866B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0230658U (en) * 1989-08-17 1990-02-27

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123713A (en) * 1973-03-30 1974-11-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123713A (en) * 1973-03-30 1974-11-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0230658U (en) * 1989-08-17 1990-02-27

Also Published As

Publication number Publication date
JPS584866B2 (en) 1983-01-28

Similar Documents

Publication Publication Date Title
JPS5386507A (en) Telephone subscriber constant current supplying circuit
ES400493A1 (en) Power supply circuit for an electronic telephone set
JPS5310235A (en) Simple type wire telecommunication unit
JPS5326952A (en) Integrated current supplying circuit
JPS53100708A (en) Current supply circuit
JPS5389306A (en) Dc current supplying circuit
JPS53146505A (en) Power circuit for cordless telephone set
JPS53140906A (en) Direct current supplying circuit
JPS5339808A (en) Control circuit
JPS5252505A (en) Lie-bus display circuit of ke telephone equipment
JPS5317214A (en) Direct current supply circuit
JPS5439509A (en) Dc current supplying circuit
JPS5236402A (en) Tone-ringer circuit for telephone
JPS52102608A (en) Direct current supllier circuit
JPS5268945A (en) Constant-current circuit
JPS5247305A (en) Extension calling systemof button telephone system
JPS52102557A (en) Constant current source
JPS5612142A (en) Dial signal converting circuit
JPS5310203A (en) Telephone circuit
JPS53123646A (en) Limiter circuit
JPS53140907A (en) Current supplying circuit
JPS54848A (en) Oscillator circuit
JPS5421206A (en) Absence communication system
JPS52142905A (en) Control device of telephone call current supply
JPS5259504A (en) Dc power supply circuit for push-button telephone