HP BladeSystem Family - Critical Facilities Round Table
HP BladeSystem Family - Critical Facilities Round Table
HP BladeSystem Family - Critical Facilities Round Table
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Power Supply Conversion Efficiency<br />
• PS conversion efficiency is a function of load and<br />
$$<br />
− higher load= better efficiency<br />
• 0-50% load = 60% efficient<br />
• 50-80% = 89-92% efficiency<br />
− Higher costs = better efficiency<br />
• +92% efficient = +50% increase in cost<br />
• Higher native power supply efficiency is not cost<br />
effective nor necessarily possible<br />
• Key to better thermal efficiency in power<br />
subsystems lies with how the power supplies are<br />
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