JPS57191724A - Power supply controlling system - Google Patents

Power supply controlling system

Info

Publication number
JPS57191724A
JPS57191724A JP56076054A JP7605481A JPS57191724A JP S57191724 A JPS57191724 A JP S57191724A JP 56076054 A JP56076054 A JP 56076054A JP 7605481 A JP7605481 A JP 7605481A JP S57191724 A JPS57191724 A JP S57191724A
Authority
JP
Japan
Prior art keywords
power supply
mode
power
discriminating
supply line
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
JP56076054A
Other languages
Japanese (ja)
Inventor
Yasuo Okuno
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP56076054A priority Critical patent/JPS57191724A/en
Publication of JPS57191724A publication Critical patent/JPS57191724A/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)
  • Calculators And Similar Devices (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE:To prevent the loss and the destruction of data when power is broken, by providing a controlling circuit which closes a power supply line indepedently of a power supply switch and discriminating a mode, where the break of power supply leads to troubles, is set or not on the basis of the state of a device. CONSTITUTION:A power supply switch 6 is made, and a desired processing mode is set by a mode designating means 2. A discriminating means 3 discriminates the set mode and supplies the mode discrimination signal to a CPU1 and a discriminating circuit 4. The discriminating circuit 4 which receives the mode discrimination signal discriminates whether this mode is a power-off disabling mode or not; and if it is the power-off disabling mode, the CPU1 leads out an output A as a control command to set an FF8. A transistor 7c is turned on by the FF8, and a relay coil 7b is excited to close a relay contact 7a, and a power supply line independent of the power supply switch 6 is formed. Thus, even if the switch 6 is turned off during the processing, the power supply line to a device is formed by a contact 7a, and the loss and the destruction of data are prevented.
JP56076054A 1981-05-19 1981-05-19 Power supply controlling system Pending JPS57191724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56076054A JPS57191724A (en) 1981-05-19 1981-05-19 Power supply controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56076054A JPS57191724A (en) 1981-05-19 1981-05-19 Power supply controlling system

Publications (1)

Publication Number Publication Date
JPS57191724A true JPS57191724A (en) 1982-11-25

Family

ID=13594058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56076054A Pending JPS57191724A (en) 1981-05-19 1981-05-19 Power supply controlling system

Country Status (1)

Country Link
JP (1) JPS57191724A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114601A (en) * 1982-12-22 1984-07-02 Anritsu Corp Power source controlling circuit of device using microprocessor
JPS59127130A (en) * 1983-01-10 1984-07-21 Nippon Telegr & Teleph Corp <Ntt> Power supply controlling system of electronic computer
JPS614231U (en) * 1984-06-15 1986-01-11 富士通株式会社 display terminal device
JPS61165052U (en) * 1985-03-30 1986-10-13
JPS62221716A (en) * 1986-03-17 1987-09-29 Fujitsu Ltd Power supply off control system
DE3707932A1 (en) * 1987-03-12 1988-09-22 Bosch Gmbh Robert CIRCUIT ARRANGEMENT FOR SWITCHING OFF ELECTRONIC SYSTEMS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938989U (en) * 1972-07-08 1974-04-05
JPS50161102A (en) * 1974-06-10 1975-12-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938989U (en) * 1972-07-08 1974-04-05
JPS50161102A (en) * 1974-06-10 1975-12-26

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114601A (en) * 1982-12-22 1984-07-02 Anritsu Corp Power source controlling circuit of device using microprocessor
JPS59127130A (en) * 1983-01-10 1984-07-21 Nippon Telegr & Teleph Corp <Ntt> Power supply controlling system of electronic computer
JPH0158527B2 (en) * 1983-01-10 1989-12-12 Nippon Telegraph & Telephone
JPS614231U (en) * 1984-06-15 1986-01-11 富士通株式会社 display terminal device
JPH0116192Y2 (en) * 1984-06-15 1989-05-12
JPS61165052U (en) * 1985-03-30 1986-10-13
JPS62221716A (en) * 1986-03-17 1987-09-29 Fujitsu Ltd Power supply off control system
DE3707932A1 (en) * 1987-03-12 1988-09-22 Bosch Gmbh Robert CIRCUIT ARRANGEMENT FOR SWITCHING OFF ELECTRONIC SYSTEMS
WO1988006988A1 (en) * 1987-03-12 1988-09-22 Robert Bosch Gmbh Circuit arrangement for switching off electronic systems

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