JPS5779757A - Power feeding system for exchanger - Google Patents

Power feeding system for exchanger

Info

Publication number
JPS5779757A
JPS5779757A JP15483580A JP15483580A JPS5779757A JP S5779757 A JPS5779757 A JP S5779757A JP 15483580 A JP15483580 A JP 15483580A JP 15483580 A JP15483580 A JP 15483580A JP S5779757 A JPS5779757 A JP S5779757A
Authority
JP
Japan
Prior art keywords
power supply
control circuit
battery
given
commercial power
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.)
Pending
Application number
JP15483580A
Other languages
Japanese (ja)
Inventor
Susumu Suginaga
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 JP15483580A priority Critical patent/JPS5779757A/en
Publication of JPS5779757A publication Critical patent/JPS5779757A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

PURPOSE:To reduce the load of a battery and power consumption, by stopping the power supply to a spare system at failure of commercial power supply. CONSTITUTION:A commercial power supply is inputted to a rectifying circuit 1 normally, a DC power is outputted and given to a converter 5' in control circuits 3, 4 and charges a battery 2. If the commercial power supply is in failure, it is detected by a commercial power supply interruption circuit 6 and the information is transmitted to a power supply control circuit 7. Normally, an output Q of flip-flops FF0, FF1 is both at ''1'', but since ''1'' is given to one input of a gate R1 from a present use/spare control circuit if the control circuit 4 is used as spare system, the flip-flop FF1 is reset on mains failure, the converter 5' of the control circuit 4 is inoperative and no power is given to the spare system from the battery 2.
JP15483580A 1980-11-04 1980-11-04 Power feeding system for exchanger Pending JPS5779757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15483580A JPS5779757A (en) 1980-11-04 1980-11-04 Power feeding system for exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15483580A JPS5779757A (en) 1980-11-04 1980-11-04 Power feeding system for exchanger

Publications (1)

Publication Number Publication Date
JPS5779757A true JPS5779757A (en) 1982-05-19

Family

ID=15592917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15483580A Pending JPS5779757A (en) 1980-11-04 1980-11-04 Power feeding system for exchanger

Country Status (1)

Country Link
JP (1) JPS5779757A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178018A (en) * 1999-12-20 2001-06-29 Fujitsu Ltd Power supply controller, method of controlling power supply, and storage medium
JP2010259156A (en) * 2009-04-22 2010-11-11 Fujitsu Telecom Networks Ltd Communication system
JPWO2020152829A1 (en) * 2019-01-24 2021-09-09 三菱電機株式会社 Ground radio and train control system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178018A (en) * 1999-12-20 2001-06-29 Fujitsu Ltd Power supply controller, method of controlling power supply, and storage medium
US6691248B1 (en) 1999-12-20 2004-02-10 Fujitsu Limited Method and apparatus for controlling supply of power, and storage medium
JP2010259156A (en) * 2009-04-22 2010-11-11 Fujitsu Telecom Networks Ltd Communication system
JPWO2020152829A1 (en) * 2019-01-24 2021-09-09 三菱電機株式会社 Ground radio and train control system

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