SBC电源的散热考虑

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SBC电源的散热考虑

　　单板计算机（SBC）是一个易于集成的解决方案，许多控制问题。理念的普及导致SBC产品在市场上，跨度广泛的性能和成本要求的数量，从相对简单的基于微控制器的解决方案到复杂而紧凑的混合物的高性能处理器和现场可编程门阵列。通常情况下，需要包装大量的计算性能到一个小的空间提出了挑战，在外壳和包装设计，与电源系统的敲击影响。

　　一个丰富的电源解决方案的选择已经出现在平行的SBC市场的增长。在一个层面上，这使得最终系统的设计更容易，因为它可以依赖于现成的解决方案，但在许多嵌入式控制项目的小尺寸的需求会影响所需的选择，以确保高可靠性和一致的性能。

　　Higher-perf ormance SBCs can demand high levels of power to support devices that can each consume more than 100 A at 1 W or less. Usually there will be point-of-load （POL） power controllers close to the individual processors or FPGAs; but the core power supply needs to be able to supply a well-regulated voltage at quite high power levels to these POL devices to ensure efficient operation.

　　Heat has a direct impact on the performance of an electronic system. Electronic circuits， particularly those used for power conversion and delivery， often perform more efficiently at lower temperatures and will， in turn， tend to dissipate less energy as wasted heat. The efficiency gains that can be obtained through effective cooling increase significantly as the power output of the overall system increases.