Power supply system, computer apparatus and maximum power control method
AssigneeInternational Business Machines Corporation
InventorShigefumi Odaohhara
Life of this patent
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Abstract
In dealing with degradation in performance of a system unit due to excessive controlling by performing a power consumption control function after power consumption of the system unit actually exceeds a maximum power of a power supply apparatus, the present invention solves the above technological problems, and controls the power consumption of a system unit in a state while making full use of performance of the power supply apparatus.
Claims18
A power supply system for supplying power to a main unit comprising:
- a power supply apparatus connected to a commercial power supply for supplying power to said main unit;
- a battery for supplying power to the main unit, and
- a controller,
- wherein said controller executes an operation of power consumption control means for the main unit started upon power consumption in said main unit exceeding said predetermined value.
A computer apparatus, comprising:
- a system unit having a CPU for performing data processing;
- a power supply apparatus connected to a commercial power supply for supplying power to said system unit;
- an intelligent battery for supplying power to said system unit in a state where power consumption in said system unit exceeds a predetermined value;
- and a controller having a function of communication with said intelligent battery and also having power management in said system unit executed, in a state of connecting with said power supply apparatus, based on information on discharge acquired from said intelligent battery.
A computer apparatus, comprising:
- system unit for performing data processing;
- a power supply apparatus connected to a commercial power supply for supplying power to said system unit;
- an intelligent battery for supplying power to said system unit in the case where power consumption in said system unit exceeds a predetermined value;
- a voltage measurement circuit for detecting that the output voltage from said power supply apparatus is lower than a predetermined voltage threshold;
- and
- a controller for having operation of power consumption reduction in said system unit executed based on output from said voltage measurement circuit.
A maximum power control method in the case where maximum output power from a power supply apparatus connected to a commercial power supply is smaller than maximum power consumption of a system unit for performing data processing,
- wherein power is supplied from said power supply apparatus to said system unit;
- power is supplied from a battery to the system unit in a state where power consumption in said main unit exceeds a predetermined value;
- and
- operation of power consumption reduction for said system unit is started after the power consumption of said system unit exceeds said predetermined value.
A maximum power control method in the case where maximum output power from a power supply apparatus connected to a commercial power supply is smaller than maximum power consumption of a system unit for performing data processing,
- wherein power is supplied from said power supply apparatus to said system unit;
- power is supplied from a battery to the system unit in the case where power consumption in said system unit exceeds a predetermined value;
- and execution of operation of power consumption reduction for said system unit is started by recognizing a discharge current from said battery.
Dependencies are inferred from the claim text.