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JPS56159719A - Power-failure resisting device of microcomputer - Google Patents

Power-failure resisting device of microcomputer

Info

Publication number
JPS56159719A
JPS56159719A JP6425080A JP6425080A JPS56159719A JP S56159719 A JPS56159719 A JP S56159719A JP 6425080 A JP6425080 A JP 6425080A JP 6425080 A JP6425080 A JP 6425080A JP S56159719 A JPS56159719 A JP S56159719A
Authority
JP
Japan
Prior art keywords
power failure
microcomputer
routine
input
output
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
JP6425080A
Other languages
Japanese (ja)
Other versions
JPS6336006B2 (en
Inventor
Noriyuki Suehiro
Masahiko Maeda
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP6425080A priority Critical patent/JPS56159719A/en
Publication of JPS56159719A publication Critical patent/JPS56159719A/en
Publication of JPS6336006B2 publication Critical patent/JPS6336006B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

PURPOSE:To hold data in a computer by using a secondary battery, charged at all times, during a power failure. CONSTITUTION:The output of a rectifying circuit 9 is converted by a waveform shaping circuit 12 into a rectangular wave, which is inputted to a microcomputer 13. The microcomputer 13 checks the existence of an input and, when these is no input for a certain time, interrupts all outputs to start a routine in a power failure. During the power failure, various data are protected by an input from a secondary battery 10 charged at all times. Through the routine in the power failure, the existence of the output of the waveform shaping circuit 12 is detected and if there is an output for a certain time, the control is transferred from the routine in the power failure to continue the previous operation on the basis of data right before the power failure.
JP6425080A 1980-05-14 1980-05-14 Power-failure resisting device of microcomputer Granted JPS56159719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6425080A JPS56159719A (en) 1980-05-14 1980-05-14 Power-failure resisting device of microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6425080A JPS56159719A (en) 1980-05-14 1980-05-14 Power-failure resisting device of microcomputer

Publications (2)

Publication Number Publication Date
JPS56159719A true JPS56159719A (en) 1981-12-09
JPS6336006B2 JPS6336006B2 (en) 1988-07-18

Family

ID=13252720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6425080A Granted JPS56159719A (en) 1980-05-14 1980-05-14 Power-failure resisting device of microcomputer

Country Status (1)

Country Link
JP (1) JPS56159719A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8811650D0 (en) * 1988-05-17 1988-06-22 Econocruise Ltd Improvements in & relating to electromagnetic actuators

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029142A (en) * 1971-11-16 1975-03-25 Addressograph Multigraph Responsive power fail detection system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029142A (en) * 1971-11-16 1975-03-25 Addressograph Multigraph Responsive power fail detection system

Also Published As

Publication number Publication date
JPS6336006B2 (en) 1988-07-18

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