Power supply management device and method for a computer equipment having powered I/O ports in standby mode
First Claim
1. A power management device for computer equipment including electrically powered memory and a power supply conductor for at least one input/output port, wherein during at least one mode of operation of the computer equipment, said memory and said power supply conductor are connected to a common power supply unit, said power supply conductor being connected to said common power supply unit through a controlled switch closed during that mode, wherein said power management device includes a detector adapted to detect a value representative of the total current consumption through said power supply conductor and to open said controlled switch when said total current consumption exceeds a limit.
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Accused Products
Abstract
A computer equipment includes an electrically powered memory and a power supply conductor for at least one input/output port. During at least one mode of operation such as standby, said memory and said power supply conductor are connected to a common power supply unit, said power supply conductor being connected to said common power supply unit through a controlled switch turned on during that mode. A current drawn by another equipment connected to the input/output port might in such case cause a decrease of the output voltage of the common power supply unit, giving rise to a potential loss of contents of said memory. A power management device is provided that comprises a detector for detecting a value representative of the total current consumption through said power supply conductor and for turning off said controlled switch when said total current consumption exceeds a limit.
10 Citations
22 Claims
- 1. A power management device for computer equipment including electrically powered memory and a power supply conductor for at least one input/output port, wherein during at least one mode of operation of the computer equipment, said memory and said power supply conductor are connected to a common power supply unit, said power supply conductor being connected to said common power supply unit through a controlled switch closed during that mode, wherein said power management device includes a detector adapted to detect a value representative of the total current consumption through said power supply conductor and to open said controlled switch when said total current consumption exceeds a limit.
- 9. A computer, including a CPU, an electrically powered memory, a common power supply unit, a power supply conductor associated with at least one input/output port of the computer equipment, a controlled switch connected between said common power supply unit and said power supply conductor, wherein during at least one mode of operation of the equipment, said controlled switch is closed and said memory and said power supply conductor are connected to said common power supply unit, said computer further including a power management device including a detector adapted to detect a value representative of the total current consumption through said power supply conductor and to open said controlled switch when said total current consumption exceeds a limit.
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17. A method of operating a computer, the computer including a CPU, an electrically powered memory, a common power supply unit, a power supply conductor associated with at least one input/output port of the equipment, a controlled switch connected between said common power supply unit and said power supply conductor, wherein during at least one mode of operation of the computer equipment, said controlled switch is closed and said memory and said power supply conductor are connected to said common power supply unit:
- a method for managing power supply to said memory and said power supply conductor, the method comprising the steps of;
detecting a value representative of the total current consumption through said power supply conductor, and opening said controlled switch when said total is current consumption exceeds a limit. - View Dependent Claims (18, 19, 20, 21, 22)
- a method for managing power supply to said memory and said power supply conductor, the method comprising the steps of;
Specification