KR890007783U - RAM data protection circuit in case of power failure - Google Patents

RAM data protection circuit in case of power failure

Info

Publication number
KR890007783U
KR890007783U KR2019870015316U KR870015316U KR890007783U KR 890007783 U KR890007783 U KR 890007783U KR 2019870015316 U KR2019870015316 U KR 2019870015316U KR 870015316 U KR870015316 U KR 870015316U KR 890007783 U KR890007783 U KR 890007783U
Authority
KR
South Korea
Prior art keywords
case
power failure
protection circuit
data protection
ram data
Prior art date
Application number
KR2019870015316U
Other languages
Korean (ko)
Other versions
KR910001691Y1 (en
Inventor
한영식
Original Assignee
동양정밀공업 주식회사
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 동양정밀공업 주식회사 filed Critical 동양정밀공업 주식회사
Priority to KR2019870015316U priority Critical patent/KR910001691Y1/en
Publication of KR890007783U publication Critical patent/KR890007783U/en
Application granted granted Critical
Publication of KR910001691Y1 publication Critical patent/KR910001691Y1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G11C5/141—Battery and back-up supplies
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2015—Redundant power supplies

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Power Sources (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
KR2019870015316U 1987-09-08 1987-09-08 The protection circuit of ram data at interruption of electric power KR910001691Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870015316U KR910001691Y1 (en) 1987-09-08 1987-09-08 The protection circuit of ram data at interruption of electric power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870015316U KR910001691Y1 (en) 1987-09-08 1987-09-08 The protection circuit of ram data at interruption of electric power

Publications (2)

Publication Number Publication Date
KR890007783U true KR890007783U (en) 1989-05-17
KR910001691Y1 KR910001691Y1 (en) 1991-03-18

Family

ID=19267624

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870015316U KR910001691Y1 (en) 1987-09-08 1987-09-08 The protection circuit of ram data at interruption of electric power

Country Status (1)

Country Link
KR (1) KR910001691Y1 (en)

Also Published As

Publication number Publication date
KR910001691Y1 (en) 1991-03-18

Similar Documents

Publication Publication Date Title
KR890007783U (en) RAM data protection circuit in case of power failure
NO172915C (en) SECURITY FOR AN AC POWER CIRCUIT
KR850007209U (en) Anti-malfunction circuit in case of instant power failure
KR910008071U (en) Power protection circuit in case of power failure
KR880022426U (en) RAM data protection circuit when power off
KR880003053U (en) Data retention circuit in case of power failure
KR900009159U (en) Power protection circuit
KR890014919U (en) Power backup circuit in case of power failure
KR890003686U (en) Battery backup circuit
KR940008373U (en) Computer protection circuit in case of power failure
KR890011803U (en) Memory protection circuit when power is applied
KR890015194U (en) Protection circuit in monitor
KR880010861U (en) Power protection circuit
KR880010777U (en) Power protection circuit
KR890020070U (en) Power off circuit in case of overload
KR890020119U (en) Protection circuit of multi-output power circuit
KR880001385U (en) Emergency data protection circuit
KR890014909U (en) Battery protection circuit
KR890011330U (en) Computer power failure alarm
KR880001389U (en) Power line protection circuit
KR900005652U (en) Static RAM auxiliary power circuit
KR890007813U (en) Power transistor protection circuit
KR880018374U (en) Power failure detection circuit
KR880022667U (en) Static RAM memory backup circuit
KR860012494U (en) Power circuit

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19940311

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee