JPS57211619A - Power supply device - Google Patents

Power supply device

Info

Publication number
JPS57211619A
JPS57211619A JP9631181A JP9631181A JPS57211619A JP S57211619 A JPS57211619 A JP S57211619A JP 9631181 A JP9631181 A JP 9631181A JP 9631181 A JP9631181 A JP 9631181A JP S57211619 A JPS57211619 A JP S57211619A
Authority
JP
Japan
Prior art keywords
circuit part
circuit
signal processing
power
power sources
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
JP9631181A
Other languages
Japanese (ja)
Inventor
Shinichi Otsu
Yoshihiko Kizu
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9631181A priority Critical patent/JPS57211619A/en
Publication of JPS57211619A publication Critical patent/JPS57211619A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE:To extend a circuit part economically, by connecting power sources independent of one another to respective signal processing circuit parts of parallel operation and making a discriminating circuit part, which checks respective circuit parts, common to them and supplying power to circuit parts independently of each other. CONSTITUTION:Signal processing circuits 26 and 27 through which information is transmitted and received between a disc unit 25 and input/output controllers 23 and 24 controlled by CPUs 21 and 22 receive power from respective private power sources 37 and 38 through diodes 39 and 40 to perform prescribed functions. It is checked by a discriminating circuit part 28, which is fed from power sources 37 and 38 through diodes 41 and 42 and is provided in common, whether said functions are operated normally or not. If, for example, the power source 37 is turned off during this operation, a CPU21 accesses the unit 25 through the device 23 and the circuit part 27 by the cross call. The circuit part 27 is operated by the circuit part 28 which is fed from the power source 38 through the diode 42. Thus, when a signal processing circuit is extended, it is unnecessary to provide the circuit part 28 each time.
JP9631181A 1981-06-22 1981-06-22 Power supply device Pending JPS57211619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9631181A JPS57211619A (en) 1981-06-22 1981-06-22 Power supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9631181A JPS57211619A (en) 1981-06-22 1981-06-22 Power supply device

Publications (1)

Publication Number Publication Date
JPS57211619A true JPS57211619A (en) 1982-12-25

Family

ID=14161474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9631181A Pending JPS57211619A (en) 1981-06-22 1981-06-22 Power supply device

Country Status (1)

Country Link
JP (1) JPS57211619A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118014U (en) * 1983-01-25 1984-08-09 横河電機株式会社 Power supply for redundant systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118014U (en) * 1983-01-25 1984-08-09 横河電機株式会社 Power supply for redundant systems

Similar Documents

Publication Publication Date Title
JPS57211619A (en) Power supply device
US3758835A (en) Standardized control sections for machine control systems
DE3765695D1 (en) PROGRAMMABLE CIRCUIT ARRANGEMENT.
JPS57185501A (en) Power supply circuit for electronic controller for car
JPS57174721A (en) Power supply controller
JPS57212549A (en) Information processing device
JPS55108057A (en) Duplex control unit
JPS56157554A (en) Microcomputer device
JPS57141754A (en) Operator console
JPS5726984A (en) Remote control system
JPS6486489A (en) Illumination control system
JPS57105021A (en) Input/output device
JPS56136059A (en) Data transmission system
JPS56135252A (en) Computer system for process control
JPS57136239A (en) Device address switching system
JPS6458028A (en) Data processor
JPS56114493A (en) Transmission control system for dial pulse signal
JPS5762412A (en) Output unit of programmable logic controller
JPS56152390A (en) Trunk control interface circuit
JPS56103755A (en) Control apparatus
JPS54150565A (en) Program selective command check system for numerical controlled machine tool
JPS6444565A (en) Io module control system
JPS6435633A (en) Interruption control system
JPS5640936A (en) Initial diagnosis system for multiplex bus constitution system
JPS57203104A (en) Input device for tape reader