POWER SUPPLY SYSTEM AND POWER SUPPLY METHOD
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United States of America Patent
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Issued Date -
Mar 11, 2010
app pub date -
Sep 2, 2009
filing date -
Sep 8, 2008
priority date (Note) -
Abandoned
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Abstract
A power supply system is adapted to a platform including a plurality of processing devices including baseboard management controllers (BMC) for processing basic information units, each of which is equipped with a plurality of power supply units (PSU) and at least one secondary power supply unit interconnected to a power cable. The controller calculates the maximum power consumption of the processing device based on its configuration, an adequate number of power supply units being turned on to meet the maximum power consumption, and a redundant power supply corresponding to one power supply unit times the adequate number minus the maximum power consumption. When the processing device suffers from a power shortage, the secondary power supply unit or the power supply unit of the other processing device is selectively turned on so as to recover the redundant power supply, thus normally achieving the N+1 redundancy of power supply.
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