JPS6074761A - 電話端末機の停電時電源供給回路 - Google Patents

電話端末機の停電時電源供給回路

Info

Publication number
JPS6074761A
JPS6074761A JP58180449A JP18044983A JPS6074761A JP S6074761 A JPS6074761 A JP S6074761A JP 58180449 A JP58180449 A JP 58180449A JP 18044983 A JP18044983 A JP 18044983A JP S6074761 A JPS6074761 A JP S6074761A
Authority
JP
Japan
Prior art keywords
power supply
power
voltage
circuit
power failure
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
JP58180449A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0314262B2 (enExample
Inventor
Atsuya Murai
村井　厚也
Norimasa Hirose
広瀬　典正
Shinichi Inoue
真一 井上
Masaaki Yamauchi
雅昭 山内
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 JP58180449A priority Critical patent/JPS6074761A/ja
Publication of JPS6074761A publication Critical patent/JPS6074761A/ja
Publication of JPH0314262B2 publication Critical patent/JPH0314262B2/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
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP58180449A 1983-09-30 1983-09-30 電話端末機の停電時電源供給回路 Granted JPS6074761A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58180449A JPS6074761A (ja) 1983-09-30 1983-09-30 電話端末機の停電時電源供給回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58180449A JPS6074761A (ja) 1983-09-30 1983-09-30 電話端末機の停電時電源供給回路

Publications (2)

Publication Number Publication Date
JPS6074761A true JPS6074761A (ja) 1985-04-27
JPH0314262B2 JPH0314262B2 (enExample) 1991-02-26

Family

ID=16083422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58180449A Granted JPS6074761A (ja) 1983-09-30 1983-09-30 電話端末機の停電時電源供給回路

Country Status (1)

Country Link
JP (1) JPS6074761A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847899A (en) * 1986-11-20 1989-07-11 Sharp Kabushiki Kaisha Power circuit for telephone accessory devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847899A (en) * 1986-11-20 1989-07-11 Sharp Kabushiki Kaisha Power circuit for telephone accessory devices

Also Published As

Publication number Publication date
JPH0314262B2 (enExample) 1991-02-26

Similar Documents

Publication Publication Date Title
US5177426A (en) Over-discharge protection circuitry
US4547629A (en) Energy management circuit
US7482781B2 (en) Controlling power supply between a voltage generator, a load and a rechargeable battery
JPS6074761A (ja) 電話端末機の停電時電源供給回路
US5113434A (en) Battery boosted dial memory
JP3259123B2 (ja) コンデンサの充放電回路
JPS62217826A (ja) 浮動式蓄電池電源回路
JPH0141258Y2 (enExample)
US20030128837A1 (en) Power switch device utilizing phone loop signals to control supply of electrical power to a telephony instrument
JPS6074762A (ja) 電話端末機の停電時電源供給回路
JPH04163652A (ja) バックアップ回路
KR940005522B1 (ko) 리세트 회로
JPS61283264A (ja) メモリダイヤル電話機
US5317634A (en) Telephone subset arrangement
JP2832762B2 (ja) 公衆電話機
JPS59156124A (ja) 電源バツクアツプ回路
JPH03212129A (ja) 被充電電源装置における停電時放電防止回路
JP2620798B2 (ja) 電話機のダイアルメモリ用バックアップ電源回路
JPS6316196Y2 (enExample)
JPH0766772A (ja) 携帯用無線機と電源装置
JPH0416609Y2 (enExample)
JPH04354236A (ja) 電話機用電源回路
KR200157748Y1 (ko) 정전 보상회로
JPS6043958A (ja) 電源供給回路
KR880000082B1 (ko) 전화기의 정전압 공급용 전원회로