SE9002838L - POWER CONTROL OF A PORTFOLIO COMPUTER - Google Patents

POWER CONTROL OF A PORTFOLIO COMPUTER

Info

Publication number
SE9002838L
SE9002838L SE9002838A SE9002838A SE9002838L SE 9002838 L SE9002838 L SE 9002838L SE 9002838 A SE9002838 A SE 9002838A SE 9002838 A SE9002838 A SE 9002838A SE 9002838 L SE9002838 L SE 9002838L
Authority
SE
Sweden
Prior art keywords
power
computer
various units
power control
clock signals
Prior art date
Application number
SE9002838A
Other languages
Swedish (sv)
Other versions
SE9002838D0 (en
Inventor
R S Smith
Original Assignee
Apple Computer
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 Apple Computer filed Critical Apple Computer
Publication of SE9002838D0 publication Critical patent/SE9002838D0/en
Publication of SE9002838L publication Critical patent/SE9002838L/en

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
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
    • 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
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215—Monitoring of peripheral devices
    • 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
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • 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
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3237—Power saving characterised by the action undertaken by disabling clock generation or distribution
    • 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
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency
    • 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
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Landscapes

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

Abstract

A power manager (PMGR) within a portable laptop computer provides power (via 26) and clocking control (via 27) to various units within the computer in order to conserve battery power. Transistor switches controlled by the power manager control the distribution of power and clock signals to the various units within the computer. The power manager includes a software routine for continually monitoring various units and when certain units are either not needed and/or not currently in use, power and/or clock signals are removed from a given unit, and the computer can be switched between three modes viz. normal, slow and sleep. <IMAGE>
SE9002838A 1989-09-08 1990-09-06 POWER CONTROL OF A PORTFOLIO COMPUTER SE9002838L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40563789A 1989-09-08 1989-09-08

Publications (2)

Publication Number Publication Date
SE9002838D0 SE9002838D0 (en) 1990-09-06
SE9002838L true SE9002838L (en) 1991-03-09

Family

ID=23604545

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9002838A SE9002838L (en) 1989-09-08 1990-09-06 POWER CONTROL OF A PORTFOLIO COMPUTER

Country Status (8)

Country Link
JP (1) JPH03171317A (en)
KR (1) KR910006825A (en)
AU (1) AU629019B2 (en)
CA (1) CA2024552A1 (en)
DE (1) DE4028175A1 (en)
GB (1) GB2235797B (en)
HK (1) HK36394A (en)
SE (1) SE9002838L (en)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5355501A (en) * 1990-03-09 1994-10-11 Novell, Inc. Idle detection system
US5230074A (en) * 1991-01-25 1993-07-20 International Business Machines Corporation Battery operated computer power management system
JP3097065B2 (en) * 1991-04-23 2000-10-10 セイコーエプソン株式会社 Information processing equipment
EP0584257B1 (en) * 1991-05-17 2004-08-04 Packard Bell NEC, Inc. Power management capability for a microprocessor having backward compatibility
DE4244858A1 (en) * 1991-09-27 1995-10-05 Toshiba Kawasaki Kk Portable computer with a function for switching the CPU clock
GB2264794B (en) * 1992-03-06 1995-09-20 Intel Corp Method and apparatus for automatic power management in a high integration floppy disk controller
US5423045A (en) * 1992-04-15 1995-06-06 International Business Machines Corporation System for distributed power management in portable computers
US5329625A (en) * 1992-04-15 1994-07-12 International Business Machines Corp. System to service processor interface for a tablet computer
DE69332813T2 (en) * 1992-09-17 2004-03-11 Kabushiki Kaisha Toshiba, Kawasaki Portable computer with assigned register group and peripheral control bus between system bus and peripheral control
US5339445A (en) * 1992-11-16 1994-08-16 Harris Corporation Method of autonomously reducing power consumption in a computer sytem by compiling a history of power consumption
KR100188087B1 (en) * 1993-04-21 1999-06-01 김광호 Power supply control device and its driving method
US5337285A (en) * 1993-05-21 1994-08-09 Rambus, Inc. Method and apparatus for power control in devices
US5548763A (en) * 1993-07-26 1996-08-20 International Business Machines Corporation Desk top computer system having multi-level power management
US5408668A (en) * 1993-07-28 1995-04-18 Tornai; Richard Method and apparatus for controlling the provision of power to computer peripherals
US5894577A (en) * 1993-09-22 1999-04-13 Advanced Micro Devices, Inc. Interrupt controller with external in-service indication for power management within a computer system
EP0654726B1 (en) * 1993-11-23 1998-12-16 Advanced Micro Devices, Inc. Computer power management systems
DE69517712T2 (en) * 1994-01-10 2001-03-08 Sun Microsystems, Inc. Method and device for reducing the power consumption in a computer system
US5504910A (en) * 1994-02-02 1996-04-02 Advanced Micro Devices, Inc. Power management unit including software configurable state register and time-out counters for protecting against misbehaved software
US5535401A (en) * 1994-04-05 1996-07-09 International Business Machines Corporation Method and system of power and thermal management for a data processing system using object-oriented program design
US5493684A (en) * 1994-04-06 1996-02-20 Advanced Micro Devices Power management architecture including a power management messaging bus for conveying an encoded activity signal for optimal flexibility
AU2471395A (en) * 1994-05-10 1995-11-29 Apple Computer, Inc. A method and apparatus for controlling power for subsystems
US5752011A (en) 1994-06-20 1998-05-12 Thomas; C. Douglas Method and system for controlling a processor's clock frequency in accordance with the processor's temperature
JP3224715B2 (en) * 1994-09-07 2001-11-05 インターナショナル・ビジネス・マシーンズ・コーポレーション Low power ring detection to wake computer system
US5675810A (en) * 1994-09-07 1997-10-07 Compaq Computer Corporation Reducing power usage in a personal computer
US5530879A (en) * 1994-09-07 1996-06-25 International Business Machines Corporation Computer system having power management processor for switching power supply from one state to another responsive to a closure of a switch, a detected ring or an expiration of a timer
DE4444283A1 (en) * 1994-12-13 1995-04-20 Udo Metzkow System for switching the components of a local area network (LAN)
EP0727728A1 (en) * 1995-02-15 1996-08-21 International Business Machines Corporation Computer system power management
DE19512204A1 (en) * 1995-03-31 1995-08-31 Heinzinger Electronic Gmbh Power supply for personal computer for twenty-four hour telecommunications
US5708819A (en) * 1995-10-10 1998-01-13 Standard Microsystems Corporation Process and apparatus for generating power management events in a computer system
US6049882A (en) * 1997-12-23 2000-04-11 Lg Semicon Co., Ltd. Apparatus and method for reducing power consumption in a self-timed system
DE19803663B4 (en) * 1998-01-30 2004-09-16 Siemens Ag Method for energy-saving operation of a control device
JP3853061B2 (en) * 1998-03-18 2006-12-06 三菱電機株式会社 Input / output switching device
US6367023B2 (en) * 1998-12-23 2002-04-02 Intel Corporation Method and apparatus of measuring current, voltage, or duty cycle of a power supply to manage power consumption in a computer system
JP4181685B2 (en) * 1999-03-12 2008-11-19 富士通株式会社 Power control method, electronic device, and recording medium
US6457134B1 (en) * 1999-04-21 2002-09-24 Palm, Inc. Portable computer with differentiated time-out feature
TW425769B (en) * 1999-07-08 2001-03-11 Via Tech Inc Mapping register structure of codec controller and powering down and suspending method using the same
US6754835B2 (en) * 2000-12-15 2004-06-22 International Business Machines Corporation Method and system for providing power fault tolerance in a network of chained computer systems through bidirectional links
US7539878B2 (en) * 2001-09-19 2009-05-26 Freescale Semiconductor, Inc. CPU powerdown method and apparatus therefor
GB0123421D0 (en) * 2001-09-28 2001-11-21 Memquest Ltd Power management system
DE10157057B4 (en) 2001-11-21 2005-11-17 Infineon Technologies Ag Semiconductor memory module with low power consumption
DE10213351C1 (en) * 2002-03-26 2003-07-24 Uenal Baeder Disconnection device for computer communications line connection uses electrical switching device controlled in dependence on computer supply voltage
FI115562B (en) 2002-03-27 2005-05-31 Nokia Corp Method and system for determining power consumption in connection with electronic device and electronic device
TW556421B (en) 2002-08-15 2003-10-01 Htc Corp Circuit and operating method for integrated interface of PDA and wireless communication system
US8683247B2 (en) * 2008-06-12 2014-03-25 Advanced Micro Devices, Inc. Method and apparatus for controlling power supply to primary processor and portion of peripheral devices by controlling switches in a power/reset module embedded in secondary processor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698748A (en) * 1983-10-07 1987-10-06 Essex Group, Inc. Power-conserving control system for turning-off the power and the clocking for data transactions upon certain system inactivity

Also Published As

Publication number Publication date
KR910006825A (en) 1991-04-29
JPH03171317A (en) 1991-07-24
AU629019B2 (en) 1992-09-24
GB9018259D0 (en) 1990-10-03
DE4028175A1 (en) 1991-03-21
CA2024552A1 (en) 1991-03-09
HK36394A (en) 1994-04-29
GB2235797A (en) 1991-03-13
AU6016890A (en) 1991-03-14
SE9002838D0 (en) 1990-09-06
GB2235797B (en) 1993-08-18

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