JPH0361149B2 - - Google Patents

Info

Publication number
JPH0361149B2
JPH0361149B2 JP55174258A JP17425880A JPH0361149B2 JP H0361149 B2 JPH0361149 B2 JP H0361149B2 JP 55174258 A JP55174258 A JP 55174258A JP 17425880 A JP17425880 A JP 17425880A JP H0361149 B2 JPH0361149 B2 JP H0361149B2
Authority
JP
Japan
Prior art keywords
power supply
circuit
reset
point
main 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.)
Expired - Lifetime
Application number
JP55174258A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5797457A (en
Inventor
Yoshiaki Morya
Satoru Mitani
Atsushi Kobayashi
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP55174258A priority Critical patent/JPS5797457A/ja
Priority to US06/329,058 priority patent/US4441031A/en
Publication of JPS5797457A publication Critical patent/JPS5797457A/ja
Publication of JPH0361149B2 publication Critical patent/JPH0361149B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Electronic Switches (AREA)
  • Power Sources (AREA)
JP55174258A 1980-12-10 1980-12-10 Discriminating circuit for variation in power voltage Granted JPS5797457A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP55174258A JPS5797457A (en) 1980-12-10 1980-12-10 Discriminating circuit for variation in power voltage
US06/329,058 US4441031A (en) 1980-12-10 1981-12-09 Power source voltage change discrimination circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55174258A JPS5797457A (en) 1980-12-10 1980-12-10 Discriminating circuit for variation in power voltage

Publications (2)

Publication Number Publication Date
JPS5797457A JPS5797457A (en) 1982-06-17
JPH0361149B2 true JPH0361149B2 (en]) 1991-09-18

Family

ID=15975481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55174258A Granted JPS5797457A (en) 1980-12-10 1980-12-10 Discriminating circuit for variation in power voltage

Country Status (2)

Country Link
US (1) US4441031A (en])
JP (1) JPS5797457A (en])

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59150347A (ja) * 1983-01-27 1984-08-28 Fujitsu Ltd 電圧監視回路
US4528459A (en) * 1983-06-10 1985-07-09 Rockwell International Corporation Battery backup power switch
JPS6142235A (ja) * 1984-08-01 1986-02-28 東芝テック株式会社 バツテリ−バツクアツプ回路
JPS61160124A (ja) * 1984-12-29 1986-07-19 Hitachi Ltd メモリ給電方式
US4885521A (en) * 1985-08-26 1989-12-05 Applied Research & Technology, Inc. Unique computer power system with backup power
US5237258A (en) * 1985-08-26 1993-08-17 Applied Research And Technology, Inc. Unique computer power system with backup power
US4736116A (en) * 1986-05-16 1988-04-05 Denning Mobile Robotics, Inc. Power-up sequencing apparatus
US4851756A (en) * 1987-01-08 1989-07-25 Rayovac Corporation Primary-secondary hybrid battery
US4730121B1 (en) * 1987-03-11 1998-09-15 Dallas Semiconductor Power controller for circuits with battery backup
JP2649950B2 (ja) * 1988-07-19 1997-09-03 旭光学工業株式会社 電源装置
US4989260A (en) * 1989-05-17 1991-01-29 The Quaker Oats Company Transmitter with power reduction to compensate for varying radiated electric field strength when switching between batteries and AC power
US5251179A (en) * 1991-03-29 1993-10-05 At&T Bell Laboratories Apparatus and method for extending battery life
EP0556427A1 (en) * 1992-02-19 1993-08-25 Raymond J. Kemp A control unit for controlling a strobe light or the like
WO1995034933A1 (de) * 1994-06-16 1995-12-21 Elin Energieanwendung Gmbh Anordnung zur umschaltung zwischen zwei spannungsquellen
US5831351A (en) * 1995-06-09 1998-11-03 Dell Usa L.P. Method and apparatus for self shutdown of a battery-backed circuit card
US6269450B1 (en) * 1998-03-20 2001-07-31 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Computer monitoring device
US6122181A (en) * 1998-05-21 2000-09-19 Exide Electronics Corporation Systems and methods for producing standby uninterruptible power for AC loads using rectified AC and battery
DE60224137T2 (de) * 2001-03-02 2008-12-18 Sony Corp. Integrierte Halbleiterschaltungsvorrichtung sowie diese umfassendes tragbares Endgerät und Verfahren zum Betreiben dieses Endgeräts
CN102063171B (zh) * 2010-12-20 2016-03-30 南京博兰得电子科技有限公司 一种提高计算机用电源效率的装置及方法
CN103475086B (zh) * 2013-09-06 2016-07-06 广州凯盛电子科技有限公司 多供电模块无缝切换的电源
CN105186681B (zh) * 2015-10-10 2018-03-20 淄博淄柴新能源有限公司 不间断直流电源系统
US12265435B2 (en) 2022-04-16 2025-04-01 Hamilton Sundstrand Corporation Power source selection systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122359A (en) * 1977-04-27 1978-10-24 Honeywell Inc. Memory protection arrangement
US4323820A (en) * 1980-03-27 1982-04-06 Foxmar Industries Inc. Emergency lighting system

Also Published As

Publication number Publication date
JPS5797457A (en) 1982-06-17
US4441031A (en) 1984-04-03

Similar Documents

Publication Publication Date Title
JPH0361149B2 (en])
US4224539A (en) FET Voltage level detecting circuit
US4543494A (en) MOS type output driver circuit having a protective circuit
JPH0630541B2 (ja) 動作停止及び復帰回路装置
US5262705A (en) IC device for drive control of small hard disk drive unit
JPS62258154A (ja) デ−タ・バツクアツプ装置
JPS6280716A (ja) マイクロコンピュータを備えた電子機器
JP2923985B2 (ja) Ｅｅｐｒｏｍ装置
JPH0726748Y2 (ja) リセット回路
JP2548183B2 (ja) メモリ−カ−ド
JPH038126B2 (en])
JPS6128152A (ja) 入力装置
JPH0654867B2 (ja) 負荷制御装置
JP3009236B2 (ja) デバイスの活性保守方式
JPS5893426A (ja) 過電圧保護回路
JPS6349934Y2 (en])
JPS6057081B2 (ja) プロセス入出力装置
KR100494097B1 (ko) 글리취(Glitch)방지용데이터감지회로
JP3061706B2 (ja) バスラインレシーバ
JP2850272B2 (ja) スイッチ入力検出回路
JPH07105333A (ja) Ｉｃカード
KR910005589Y1 (ko) 디스크 드라이버의 스위칭 회로
JPH05299993A (ja) パワーオンリセット回路
JPH02273846A (ja) 半導体記憶装置の書込禁止モニタ回路
JPH0827664B2 (ja) 給電検出回路