Non-linear noise filter for improving efficiency of data center power supplies

随着互联网技术的飞速发展，越来越多的数据中心（包括服务器、数据存储）被用于处理网络流量。这些数据中心消耗大量的电能。根据美国环境保护署的一份报告，2006年，数据中心耗电量约为610亿千瓦时（kWh），相当于美国总用电量的1.5%，或美国家庭总用电量的5%，总用电量约为45亿美元。是2000年的两倍。该报告估计，数据中心的能源消耗将在2006年（到2011年）的五年内再翻一番，达到1000多亿千瓦时，相当于每年74亿美元的电力成本。峰值负荷将从2006年的7千兆瓦增加到2011年的12千兆瓦。因此，降低数据中心电力系统的功率损耗至关重要。

With the exponential growth in internet technology, more and more data centers (including servers, data storage) have been built to process network traffic. These data centers consume considerable amounts of electrical energy. According to a report by U.S. Environmental Protection Agency, in 2006, data center consumed about 61 billion kilowatt-hour (kWh), equivalent to 1.5% of total U.S. electricity consumption, or 5% of total U.S. household consumption, for a total electricity cost of about $4.5 billion. It was doubled from 2000. The report estimated that the energy consumption by data centers would nearly double again five years from 2006 (by 2011) to more than 100 billion kWh, representing $7.4 billion annual electricity cost. The peak load will increase from 7 gigawatts (GW) in 2006 to 12 GW by 2011. Therefore, it is critical to reduce the power loss in the data center power systems.