JPS57191724A - Power supply controlling system - Google Patents
Power supply controlling systemInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4938989U (en) * | 1972-07-08 | 1974-04-05 | ||
JPS50161102A (en) * | 1974-06-10 | 1975-12-26 |
-
1981
- 1981-05-19 JP JP56076054A patent/JPS57191724A/en active Pending
Patent Citations (2)
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)
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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