[go: up one dir, main page]

JPS57203119A - Storage hold device using battery for cmos memory - Google Patents

Storage hold device using battery for cmos memory

Info

Publication number
JPS57203119A
JPS57203119A JP56088447A JP8844781A JPS57203119A JP S57203119 A JPS57203119 A JP S57203119A JP 56088447 A JP56088447 A JP 56088447A JP 8844781 A JP8844781 A JP 8844781A JP S57203119 A JPS57203119 A JP S57203119A
Authority
JP
Japan
Prior art keywords
battery
diode
cmos semiconductor
semiconductor storage
storage element
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
JP56088447A
Other languages
Japanese (ja)
Inventor
Masamichi Nekotsuka
Akira Naito
Masaru Hashimoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56088447A priority Critical patent/JPS57203119A/en
Publication of JPS57203119A publication Critical patent/JPS57203119A/en
Pending 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)
  • Power Sources (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE:To hold the contents of storage of a CMOS semiconductor storage element for a considerably longer timer even after the alarm of battery voltage drop, by connecting lithium batteries in parallel and providing a difference in power consumptions between the lithium batteries. CONSTITUTION:A power supply terminal 1 is connected to a CMOS semiconductor storage element 7 via a diode 3 and a lithium battery 2a is connected to the CMOS semiconductor storage element 7 via a diode 4. A lithium battery 2b is connected to the element 7 via diodes 8a and 8b in series connection and the battery 2a is connected to a detection circuit 6 which detects the voltage of battery via a diode 5. Thus, even if an electromotive force of the battery 2a is made smaller and alarm is given to the voltage detection circuit 6, since the battery 2b has a sufficient capacity, the contents of storage can be held until the next periodical inspection.
JP56088447A 1981-06-09 1981-06-09 Storage hold device using battery for cmos memory Pending JPS57203119A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56088447A JPS57203119A (en) 1981-06-09 1981-06-09 Storage hold device using battery for cmos memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56088447A JPS57203119A (en) 1981-06-09 1981-06-09 Storage hold device using battery for cmos memory

Publications (1)

Publication Number Publication Date
JPS57203119A true JPS57203119A (en) 1982-12-13

Family

ID=13943049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56088447A Pending JPS57203119A (en) 1981-06-09 1981-06-09 Storage hold device using battery for cmos memory

Country Status (1)

Country Link
JP (1) JPS57203119A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155025U (en) * 1982-04-06 1983-10-17 大和製衡株式会社 Random access memory storage content protection device
JPS59130129U (en) * 1983-02-17 1984-09-01 株式会社日立国際電気 Backup power supply circuit for semiconductor memory elements
JPS59174628U (en) * 1983-05-06 1984-11-21 東光株式会社 Auxiliary power supply for semiconductor storage devices
JPS60238921A (en) * 1984-05-14 1985-11-27 Mitsubishi Electric Corp Memory backing-up device
JPH0374153U (en) * 1989-11-20 1991-07-25
FR2721766A1 (en) * 1994-06-28 1995-12-29 Thomson Consumer Electronics Electronic device with two power modes.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155025U (en) * 1982-04-06 1983-10-17 大和製衡株式会社 Random access memory storage content protection device
JPS59130129U (en) * 1983-02-17 1984-09-01 株式会社日立国際電気 Backup power supply circuit for semiconductor memory elements
JPS59174628U (en) * 1983-05-06 1984-11-21 東光株式会社 Auxiliary power supply for semiconductor storage devices
JPS60238921A (en) * 1984-05-14 1985-11-27 Mitsubishi Electric Corp Memory backing-up device
JPH0374153U (en) * 1989-11-20 1991-07-25
FR2721766A1 (en) * 1994-06-28 1995-12-29 Thomson Consumer Electronics Electronic device with two power modes.
EP0690541A1 (en) * 1994-06-28 1996-01-03 THOMSON multimedia Electronic apparatus having two power supply modes
CN1071059C (en) * 1994-06-28 2001-09-12 汤姆森多媒体公司 Electronic device with two power supply modes

Similar Documents

Publication Publication Date Title
US4173733A (en) Battery charger with liquid crystal charge current indicator
JPS57109183A (en) Non-volatile memory
US4164698A (en) Battery charging circuit
JPS57203119A (en) Storage hold device using battery for cmos memory
JPS52153630A (en) Semiconductor memory device
DE69219733D1 (en) Power source control module for battery control unit and battery with this module
ES2038195T3 (en) AUTONOMOUS ELECTRICAL SUPPLY SYSTEM.
RU2031513C1 (en) Gear to charge storage battery
RU2002124120A (en) THERMOELECTRIC AUTONOMOUS POWER SUPPLY
JPS5522154A (en) Electronic watch
JPS5522153A (en) Electronic watch
JPS56165992A (en) Connection method for power supply of ic memory
JPS5753629A (en) Battery type scale
CN2223416Y (en) Solar automatic lamp
JPS57199325A (en) Time limit circuit
KR910007124A (en) Solar battery
JPS5928244U (en) Power supply device using solar cells
JPS5323669A (en) Small electronic device
JPS5617082A (en) Wrist watch provided with solar cell
JPS5736320A (en) Power supply unit using solar battery
JPS5317297A (en) Operation tester of smoke sensors
JPS55166874A (en) Specific gravity and liquid level displayer for electrolyte for storage battery
BG48423A1 (en) Charging and dicharging commutator
JPS57162836A (en) Electronic circuit device
JPS561471A (en) Displayer for specific gravity and liquid level of storage battery electrolyte