JPS56124928A - Electric power source controlling device - Google Patents

Electric power source controlling device

Info

Publication number
JPS56124928A
JPS56124928A JP2864980A JP2864980A JPS56124928A JP S56124928 A JPS56124928 A JP S56124928A JP 2864980 A JP2864980 A JP 2864980A JP 2864980 A JP2864980 A JP 2864980A JP S56124928 A JPS56124928 A JP S56124928A
Authority
JP
Japan
Prior art keywords
run
electric power
output
level
signal
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
JP2864980A
Other languages
Japanese (ja)
Inventor
Tamotsu Nakazawa
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2864980A priority Critical patent/JPS56124928A/en
Publication of JPS56124928A publication Critical patent/JPS56124928A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Power Sources (AREA)

Abstract

PURPOSE:To prevent the breakdown of a data due to an operation error, by constituting so that the electric power supply to an apparatus is cut off in response to a detection signal of an unused state of the apparatus and an operation signal of the electric power supply switch. CONSTITUTION:Whenever the processing part 2 shifts the state as stop run, and run stop, signals of set run and reset run are outputted, the FF3 detects these signals, and its output inversion RUN is made to an L or H level. That is to say, when a signal of set run has been detected, the output of the FF3 becomes an L level, the AND gate 4 is closed, on the other hand, when a signal of reset run has been detected, the output of the FF3 is made to an H level, and the gate 4 is opened. In this way, when the output of the FF3 is in an L level, even if the electric power supply switch 1 is operated, the gate 4 does not output a signal, the electric power supply unit 5 continues its operation and the processing part 2 continues its processing. After that, when the processing has been finished, the output of the FF3 becomes an H level, the gate 4 is opened, and when the switch 1 is operated, the unit 5 stops its operation.
JP2864980A 1980-03-06 1980-03-06 Electric power source controlling device Pending JPS56124928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2864980A JPS56124928A (en) 1980-03-06 1980-03-06 Electric power source controlling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2864980A JPS56124928A (en) 1980-03-06 1980-03-06 Electric power source controlling device

Publications (1)

Publication Number Publication Date
JPS56124928A true JPS56124928A (en) 1981-09-30

Family

ID=12254350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2864980A Pending JPS56124928A (en) 1980-03-06 1980-03-06 Electric power source controlling device

Country Status (1)

Country Link
JP (1) JPS56124928A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6314213A (en) * 1986-07-03 1988-01-21 Matsushita Electric Ind Co Ltd Power unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5299020A (en) * 1976-02-17 1977-08-19 Casio Comput Co Ltd Power supply breaking system for electronic device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5299020A (en) * 1976-02-17 1977-08-19 Casio Comput Co Ltd Power supply breaking system for electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6314213A (en) * 1986-07-03 1988-01-21 Matsushita Electric Ind Co Ltd Power unit

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