JPS5514509A - Battery back up power supply circuit for memory unit - Google Patents

Battery back up power supply circuit for memory unit

Info

Publication number
JPS5514509A
JPS5514509A JP8626578A JP8626578A JPS5514509A JP S5514509 A JPS5514509 A JP S5514509A JP 8626578 A JP8626578 A JP 8626578A JP 8626578 A JP8626578 A JP 8626578A JP S5514509 A JPS5514509 A JP S5514509A
Authority
JP
Japan
Prior art keywords
power supply
memory unit
supply circuit
battery back
battery
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
JP8626578A
Other languages
Japanese (ja)
Inventor
Koji Kunida
Susumu Yoshino
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 JP8626578A priority Critical patent/JPS5514509A/en
Publication of JPS5514509A publication Critical patent/JPS5514509A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Power Sources (AREA)

Abstract

PURPOSE: To reduce the power consumption in the back up power supply, by splitting the power supply line and supplying required current for memory storage at mains failure.
CONSTITUTION: Power is supplied to each part of the memory unit from the DC main power supply 11 with the supply buses 1 and 2. When the main power supply 11 is interrupted and the switches 4 and 3 are opened and closed respectively, the bus 2 only is connected to the back up power supply battery 12 to supply only to the memory cell 5 and the refresh control section 8 connected to the bus 2 and required for memory storage, allowing to reduce the power consumption of the battery 12 and to restart the normal operation of the memory unit without any hindrance at the restoration of the power supply 11.
COPYRIGHT: (C)1980,JPO&Japio
JP8626578A 1978-07-14 1978-07-14 Battery back up power supply circuit for memory unit Pending JPS5514509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8626578A JPS5514509A (en) 1978-07-14 1978-07-14 Battery back up power supply circuit for memory unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8626578A JPS5514509A (en) 1978-07-14 1978-07-14 Battery back up power supply circuit for memory unit

Publications (1)

Publication Number Publication Date
JPS5514509A true JPS5514509A (en) 1980-02-01

Family

ID=13881980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8626578A Pending JPS5514509A (en) 1978-07-14 1978-07-14 Battery back up power supply circuit for memory unit

Country Status (1)

Country Link
JP (1) JPS5514509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169217A (en) * 1982-03-30 1983-10-05 Fujitsu Ltd Battery supporting system of data processor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169217A (en) * 1982-03-30 1983-10-05 Fujitsu Ltd Battery supporting system of data processor

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