JPS57152025A - Safety device for computer - Google Patents

Safety device for computer

Info

Publication number
JPS57152025A
JPS57152025A JP56036920A JP3692081A JPS57152025A JP S57152025 A JPS57152025 A JP S57152025A JP 56036920 A JP56036920 A JP 56036920A JP 3692081 A JP3692081 A JP 3692081A JP S57152025 A JPS57152025 A JP S57152025A
Authority
JP
Japan
Prior art keywords
power supply
voltage
computer
circuit
cpu5
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
JP56036920A
Other languages
Japanese (ja)
Inventor
Takeshige Tabuchi
Hideaki Norimatsu
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP56036920A priority Critical patent/JPS57152025A/en
Publication of JPS57152025A publication Critical patent/JPS57152025A/en
Pending 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)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE:To prevent malfunction of a computer due to power supply voltage drop, by stopping the operation of the computer, when a voltage supplied to the computer is detected as a prescribed value or lower. CONSTITUTION:A power supply 2 supplying power to a controller 1 is inputted to a power supply circuit 3 and a stabilized voltge Vcc is outputted from the circuit 3. The power supply 2 is inputted to a power supply voltage detecting circuit 4 consisting of a compartor 4a, resistors 4b-4d, a Zener diode 4e. When a voltage dividing the power supply 2 with the resistors 4b and 4c in a circuit 4 is at a comparison refernce voltage V1 determined at the diode 4e or less, an output of the comparator 4a goes to an L level and is given to an HALT terminal of a CPU5. Thus, the CPU5 stops the operation. When a voltage of the power supply 2 is restored and reaches a voltage corresponding to a voltage V1 or more, the CPU5 starts the operation again. Thus, a failure signal output externally due to malfunction of the computer caused by the decrease in the power supply voltage can be prevented in advance.
JP56036920A 1981-03-13 1981-03-13 Safety device for computer Pending JPS57152025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56036920A JPS57152025A (en) 1981-03-13 1981-03-13 Safety device for computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56036920A JPS57152025A (en) 1981-03-13 1981-03-13 Safety device for computer

Publications (1)

Publication Number Publication Date
JPS57152025A true JPS57152025A (en) 1982-09-20

Family

ID=12483191

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56036920A Pending JPS57152025A (en) 1981-03-13 1981-03-13 Safety device for computer

Country Status (1)

Country Link
JP (1) JPS57152025A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5971525A (en) * 1982-10-18 1984-04-23 Nec Corp State controller
JPS59153222A (en) * 1983-02-19 1984-09-01 Nippon Tekunaato:Kk Signal control system
JPS59226918A (en) * 1983-06-07 1984-12-20 Koito Mfg Co Ltd Control circuit of microcomputer
JPS60214175A (en) * 1984-04-09 1985-10-26 Matsushita Electric Ind Co Ltd On-vehicle television receiver
JPS60258623A (en) * 1984-06-05 1985-12-20 Nippon Denso Co Ltd Microcomputer
JPS6186877A (en) * 1984-10-04 1986-05-02 Matsushita Electric Ind Co Ltd Rotable data terminal equipment
JPS6266312A (en) * 1985-09-18 1987-03-25 Fuji Heavy Ind Ltd Malfunction preventing method for microcomputer for automobile
JPS62102314A (en) * 1985-10-29 1987-05-12 Matsushita Electric Ind Co Ltd Protecting device for microcomputer operation in case of momentary power failure
JPS63159461U (en) * 1987-04-06 1988-10-19
US6760846B1 (en) 1999-04-08 2004-07-06 Denso Corporation System for determining and supplying stabilized voltage from a power supply to a data processor after a fluctuating period

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5971525A (en) * 1982-10-18 1984-04-23 Nec Corp State controller
JPS59153222A (en) * 1983-02-19 1984-09-01 Nippon Tekunaato:Kk Signal control system
JPS59226918A (en) * 1983-06-07 1984-12-20 Koito Mfg Co Ltd Control circuit of microcomputer
JPS60214175A (en) * 1984-04-09 1985-10-26 Matsushita Electric Ind Co Ltd On-vehicle television receiver
JPS60258623A (en) * 1984-06-05 1985-12-20 Nippon Denso Co Ltd Microcomputer
JPH039487B2 (en) * 1984-06-05 1991-02-08 Nippon Denso Co
JPS6186877A (en) * 1984-10-04 1986-05-02 Matsushita Electric Ind Co Ltd Rotable data terminal equipment
JPS6266312A (en) * 1985-09-18 1987-03-25 Fuji Heavy Ind Ltd Malfunction preventing method for microcomputer for automobile
JPS62102314A (en) * 1985-10-29 1987-05-12 Matsushita Electric Ind Co Ltd Protecting device for microcomputer operation in case of momentary power failure
JPS63159461U (en) * 1987-04-06 1988-10-19
US6760846B1 (en) 1999-04-08 2004-07-06 Denso Corporation System for determining and supplying stabilized voltage from a power supply to a data processor after a fluctuating period

Similar Documents

Publication Publication Date Title
US4433390A (en) Power processing reset system for a microprocessor responding to sudden deregulation of a voltage
US4399537A (en) Control circuit and fuel burner incorporating a control circuit
JPS57152025A (en) Safety device for computer
ATE124819T1 (en) VOLTAGE REGULATION AND DISPLAY ARRANGEMENT.
CA2013296A1 (en) Memory drive device and method
JPS641480A (en) Controller for system coupling inverter
JPS57176401A (en) Malfunction preventing system for alarm circuit at input power supply application
JPS56166637A (en) Preventing circuit for malfunction of sensor
JPS6459513A (en) Power failure detecting circuit
JPS6412813A (en) Power device for dc stabilization
JPS6464523A (en) Vehicle mounted controller
JPS57147190A (en) Memory circuit
JPS5782620A (en) Safety device for combustor
JPS57114902A (en) Controller for set output
JPS57196623A (en) Output controlling circuit
KR910005690Y1 (en) Control circuits of voltage of battery
JPS56103722A (en) Failure detector of battery for memory in console device
GB1168118A (en) Improvements Relating to Electrical Regulator Circuits
JPS56101158A (en) Power supply device of copying machine
JPS6485540A (en) Power supply control circuit
KR890000468Y1 (en) Safety device of gas valve for emergency
KR0130010Y1 (en) Power fault detection circuit
JPS56109373A (en) Control system for supply of toner of copying machine
JPS61253522A (en) Detecting circuit for service interruption
JPS56101691A (en) Refresh control system