JPS5639673A - Electric talking current supply circuit - Google Patents

Electric talking current supply circuit

Info

Publication number
JPS5639673A
JPS5639673A JP11503579A JP11503579A JPS5639673A JP S5639673 A JPS5639673 A JP S5639673A JP 11503579 A JP11503579 A JP 11503579A JP 11503579 A JP11503579 A JP 11503579A JP S5639673 A JPS5639673 A JP S5639673A
Authority
JP
Japan
Prior art keywords
scr101
circuit
exercises
telephone set
electric
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
JP11503579A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6236424B2 (enrdf_load_html_response
Inventor
Kunio Nagashima
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11503579A priority Critical patent/JPS5639673A/ja
Publication of JPS5639673A publication Critical patent/JPS5639673A/ja
Publication of JPS6236424B2 publication Critical patent/JPS6236424B2/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)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP11503579A 1979-09-07 1979-09-07 Electric talking current supply circuit Granted JPS5639673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11503579A JPS5639673A (en) 1979-09-07 1979-09-07 Electric talking current supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11503579A JPS5639673A (en) 1979-09-07 1979-09-07 Electric talking current supply circuit

Publications (2)

Publication Number Publication Date
JPS5639673A true JPS5639673A (en) 1981-04-15
JPS6236424B2 JPS6236424B2 (enrdf_load_html_response) 1987-08-06

Family

ID=14652585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11503579A Granted JPS5639673A (en) 1979-09-07 1979-09-07 Electric talking current supply circuit

Country Status (1)

Country Link
JP (1) JPS5639673A (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763348A (en) * 1985-04-30 1988-08-09 Iwatsu Electric Co., Ltd. Controlled power supply for key telephone system
JPH03297297A (ja) * 1990-04-16 1991-12-27 Nec Corp 多重化装置の回線対応部における消費電力削減方式

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763348A (en) * 1985-04-30 1988-08-09 Iwatsu Electric Co., Ltd. Controlled power supply for key telephone system
JPH03297297A (ja) * 1990-04-16 1991-12-27 Nec Corp 多重化装置の回線対応部における消費電力削減方式

Also Published As

Publication number Publication date
JPS6236424B2 (enrdf_load_html_response) 1987-08-06

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