JPS5789118A - Control system of power supply - Google Patents

Control system of power supply

Info

Publication number
JPS5789118A
JPS5789118A JP55164095A JP16409580A JPS5789118A JP S5789118 A JPS5789118 A JP S5789118A JP 55164095 A JP55164095 A JP 55164095A JP 16409580 A JP16409580 A JP 16409580A JP S5789118 A JPS5789118 A JP S5789118A
Authority
JP
Japan
Prior art keywords
power supply
signal
circuit
prescribed time
disk
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
JP55164095A
Other languages
Japanese (ja)
Inventor
Akio Kawamata
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 JP55164095A priority Critical patent/JPS5789118A/en
Publication of JPS5789118A publication Critical patent/JPS5789118A/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
    • G06F1/32—Means for saving power

Abstract

PURPOSE:Not only to facilitate the production of program but to reduce the power consumption, by cutting off the power supply by means of an auxiliary storage control circuit of a communication controller. CONSTITUTION:A control circuit 4 receives a signal A and stores it in a power supply control register 1. Accordingly a power supply circuit part 2 produces a signal B and turns on the power supply of a floppy disk 3. The head of the disk 3 loads a signal C by the signal A and then unloads it when the reading/writing is over. This action is detected by an unloading detecting circuit 10, and a signal D is supplied to a time control circuit 11. The circuit 11 works to count pulses E until the signal C is loaded. A prescribed time is set at the circuit 11, and the next loading if any within the prescribed time is neglected. The circuit 11 produces a signal F when the next loading is carried out outside the prescribed time. The cut-off of the power supply is stored in the register 1, and the power supply of the disk is cut off via the power supply circuit part 2.
JP55164095A 1980-11-21 1980-11-21 Control system of power supply Pending JPS5789118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55164095A JPS5789118A (en) 1980-11-21 1980-11-21 Control system of power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55164095A JPS5789118A (en) 1980-11-21 1980-11-21 Control system of power supply

Publications (1)

Publication Number Publication Date
JPS5789118A true JPS5789118A (en) 1982-06-03

Family

ID=15786665

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55164095A Pending JPS5789118A (en) 1980-11-21 1980-11-21 Control system of power supply

Country Status (1)

Country Link
JP (1) JPS5789118A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223910A (en) * 1983-06-03 1984-12-15 Canon Electronics Inc Magnetic disc device
JPS6025052A (en) * 1983-07-21 1985-02-07 Tokyo Electric Co Ltd Disk recording device
JPS6050637A (en) * 1983-08-29 1985-03-20 Hitachi Ltd Optical disc device
JPS60123725U (en) * 1984-01-26 1985-08-21 三洋電機株式会社 Semiconductor laser control device in optical recording and playback equipment
JPS60180363U (en) * 1984-05-10 1985-11-30 シャープ株式会社 video disc playback device
JPS6280252U (en) * 1985-11-07 1987-05-22
JPS63176961U (en) * 1987-04-09 1988-11-16

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223910A (en) * 1983-06-03 1984-12-15 Canon Electronics Inc Magnetic disc device
JPS6025052A (en) * 1983-07-21 1985-02-07 Tokyo Electric Co Ltd Disk recording device
JPS6050637A (en) * 1983-08-29 1985-03-20 Hitachi Ltd Optical disc device
JPS60123725U (en) * 1984-01-26 1985-08-21 三洋電機株式会社 Semiconductor laser control device in optical recording and playback equipment
JPS60180363U (en) * 1984-05-10 1985-11-30 シャープ株式会社 video disc playback device
JPS6280252U (en) * 1985-11-07 1987-05-22
JPH0325339Y2 (en) * 1985-11-07 1991-05-31
JPS63176961U (en) * 1987-04-09 1988-11-16

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