JPS5672721A - Control system for electric power source - Google Patents

Control system for electric power source

Info

Publication number
JPS5672721A
JPS5672721A JP14889179A JP14889179A JPS5672721A JP S5672721 A JPS5672721 A JP S5672721A JP 14889179 A JP14889179 A JP 14889179A JP 14889179 A JP14889179 A JP 14889179A JP S5672721 A JPS5672721 A JP S5672721A
Authority
JP
Japan
Prior art keywords
electric power
memory unit
external memory
program
power supply
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
JP14889179A
Other languages
Japanese (ja)
Inventor
Rishichi Tamura
Hidesato Yanagawa
Toshitaka Hara
Shigeo Kikuta
Akio Otani
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.)
NIPPON KOKU KK
Japan Airlines Co Ltd
Hitachi Ltd
Original Assignee
NIPPON KOKU KK
Japan Airlines Co Ltd
Hitachi 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 NIPPON KOKU KK, Japan Airlines Co Ltd, Hitachi Ltd filed Critical NIPPON KOKU KK
Priority to JP14889179A priority Critical patent/JPS5672721A/en
Publication of JPS5672721A publication Critical patent/JPS5672721A/en
Pending legal-status Critical Current

Links

Landscapes

  • Power Sources (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE: To stop the generation of the noise of a cooling fan by stopping the fan by cutting off the electric power supply to an external memory unit stored with a program when program loading from the external memory unit ends.
CONSTITUTION: Electric power source controller 3 is provided which has the circuit generating an electric power feed signal when the loading of a program or data is started, the switch circuit inserted into the electric power circuit of external memory unit 2 and the control circuit controlling the switch circuit. In data loading, the feed of external memory unit power supply is commanded from processor 1 to the above-mentioned control circuit by processor 1 or with a reset input signal to processor 1, supplying the electric power. After the program or data are loaded from external memory unit 2, the processor sends electric power supply cut-off command signal 14 to the corresponding circuit again to stop the electric power supply to the external memory unit.
COPYRIGHT: (C)1981,JPO&Japio
JP14889179A 1979-11-19 1979-11-19 Control system for electric power source Pending JPS5672721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14889179A JPS5672721A (en) 1979-11-19 1979-11-19 Control system for electric power source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14889179A JPS5672721A (en) 1979-11-19 1979-11-19 Control system for electric power source

Publications (1)

Publication Number Publication Date
JPS5672721A true JPS5672721A (en) 1981-06-17

Family

ID=15463001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14889179A Pending JPS5672721A (en) 1979-11-19 1979-11-19 Control system for electric power source

Country Status (1)

Country Link
JP (1) JPS5672721A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055422A (en) * 1983-09-06 1985-03-30 Canon Inc Data processor
JPS60245058A (en) * 1984-05-18 1985-12-04 Brother Ind Ltd Data transmitter and receiver
JPS62168222A (en) * 1985-12-20 1987-07-24 マイテル・コ−ポレ−シヨン Data memory system
FR2717278A1 (en) * 1994-03-10 1995-09-15 Nguyen Van Trong Automatic controller for electricity supply to microcomputer peripherals

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5149628A (en) * 1974-10-28 1976-04-30 Hitachi Ltd
JPS51112209A (en) * 1975-03-28 1976-10-04 Hitachi Ltd Power supplying method of communication terminal equipment
JPS5383427A (en) * 1976-12-07 1978-07-22 Fujitsu Ltd Terminal control system
JPS5457922A (en) * 1977-10-18 1979-05-10 Mitsubishi Electric Corp Fixed memory
JPS5474643A (en) * 1977-11-28 1979-06-14 Nec Corp Information processing system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5149628A (en) * 1974-10-28 1976-04-30 Hitachi Ltd
JPS51112209A (en) * 1975-03-28 1976-10-04 Hitachi Ltd Power supplying method of communication terminal equipment
JPS5383427A (en) * 1976-12-07 1978-07-22 Fujitsu Ltd Terminal control system
JPS5457922A (en) * 1977-10-18 1979-05-10 Mitsubishi Electric Corp Fixed memory
JPS5474643A (en) * 1977-11-28 1979-06-14 Nec Corp Information processing system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055422A (en) * 1983-09-06 1985-03-30 Canon Inc Data processor
JPS60245058A (en) * 1984-05-18 1985-12-04 Brother Ind Ltd Data transmitter and receiver
JPH0319966B2 (en) * 1984-05-18 1991-03-18 Brother Ind Ltd
JPS62168222A (en) * 1985-12-20 1987-07-24 マイテル・コ−ポレ−シヨン Data memory system
FR2717278A1 (en) * 1994-03-10 1995-09-15 Nguyen Van Trong Automatic controller for electricity supply to microcomputer peripherals

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