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密集服务器的电源解决方案
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密集服务器的电源解决方案
密度已成为计算机服务器设计中的关键因素。穆尔的Law已经使有可能把多个高性能的核心到一个单一的片上系统（SoC）设备与支持逻辑。高密度现场可编程门阵列（FPGA）提供了进一步的应用加速和集成的可能性。
其结果是多个高性能SoC组件部署在一个系统中的每个逻辑板，以提供大量的计算潜力。然而，过程技术的变化，推动更高的整合已经在服务器上的电源分配的敲门效应。
Processor and FPGA design teams have reduced supply voltages down to 1 V or less for the core logic as the use of higher voltages would result in damage to the high-speed transistors. Voltages in the 1.8 V to 3 V range are only used for I/O to memory and peripherals. This has led to the situation where higher current levels need to be delivered to processors and FPGAs than was the case a decade ago. This trend is ruling out the use of traditional power-conversion architectures. The high current demand would ordinarily point to the use of larger passive components able to handle the high loads and stresses. However， such larger components go against the trend to denser servers， reducing the amount of available PCB space for power-conversion circuitry. As a result， manufacturers of power converters suitable for servers have changed their approach to design.
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