Sensing current to protect a fuse
First Claim
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1. A computing device comprising:
- a chassis having a power supply and a plurality of fuses;
a plurality of blades placed in the chassis, wherein each of the plurality of blades is connected to the power supply via a respective one of the plurality of fuses, andwherein each of the plurality of blades includes a processor, a current sensor to detect a current drawn by the blade, and logic circuitry to send a signal to the processor to reduce an operating frequency of the processor if the current detected by the current sensor exceeds a current threshold, said current threshold being a threshold above which the respective fuse connected to the blade is rated to be damaged.
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Abstract
The speed of a processor is adjusted based on the current sensed by a current sensor in order to protect a fuse from being damaged.
16 Citations
20 Claims
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1. A computing device comprising:
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a chassis having a power supply and a plurality of fuses; a plurality of blades placed in the chassis, wherein each of the plurality of blades is connected to the power supply via a respective one of the plurality of fuses, and wherein each of the plurality of blades includes a processor, a current sensor to detect a current drawn by the blade, and logic circuitry to send a signal to the processor to reduce an operating frequency of the processor if the current detected by the current sensor exceeds a current threshold, said current threshold being a threshold above which the respective fuse connected to the blade is rated to be damaged. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A computing device comprising a chassis having a power supply and a plurality of fuses, a plurality of blades placed in the chassis, wherein each of the plurality of fuses is connected between a respective one of the plurality of blades and the power supply, each of the plurality of blades comprising:
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a CPU; a current sensor to sense a current drawn by the blade; and logic circuitry to dynamically adjust a running power of the CPU by adjusting an operating frequency of the CPU based on the current sensed by the current sensor so that a total power drawn by the blade does not exceed a power threshold above which the respective fuse connected to the blade is rated to be damaged, said power threshold being based on a current rating of the respective fuse. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method of protecting a fuse in a computing system, wherein the computing system comprises a chassis having a power supply and a plurality of fuses, and a plurality of blades placed in the chassis, wherein each of the plurality of blades is connected to the power supply via a respective one of the plurality of fuses, the method comprising:
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detecting a current drawn by a processor in each of the plurality of blades; determining whether the current drawn by the processor in the respective blade exceeds a current threshold, the current threshold being a threshold above which the fuse associated with the respective blade is rated to be damaged; causing the processor in the respective blade to run at a lower speed in response to a determination that the current drawn by the processor exceeds the current threshold. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification