永磁机构
上传时间： 2014-12-24
上传用户：bioequ
开关电源因其具有体积小、高效节能等优点而逐渐取代线性电源，成为稳压电源的发展方向。文中介绍了现有的直流开关电源的工作原理，分析了其不足之处，提出了新型的电压可调的开关电源的软硬件实现方式。在不改变电源转换电路反馈的动态性能的前提下，实现了对输出电压的可调。该电源还具有对输出的过流保护、较低的因电源温漂、时漂、元器件参数容差而造成的输出误差、较低成本、较高的输出分辨力等优点。
上传时间： 2014-12-24
上传用户：梧桐
Abstract: Investment in smart meters and smart grid end equipment continues to grow worldwide as countriestry to make their electric delivery systems more efficient. However, as critical as the electric deliveryinfrastructure is, it is normally not secured and thus subject to attack. This article describes the concept oflife-cycle security—the idea that embedded equipment in the smart grid must have security designed into theentire life of the product, even back to the contract manufacturer. We also talk about how life-cycle securityapplies to embedded equipment in the smart grid. Potential threats are discussed, as are potential solutionsto mitigate the risks posed by those threats.
上传时间： 2014-12-24
上传用户：熊少锋
电流保护
上传时间： 2014-12-24
上传用户：xuanchangri
LED道路照明培训资料
上传时间： 2014-12-24
上传用户：lizx30340
设计3至15V可调直流稳压源
上传时间： 2014-12-24
上传用户：h886166
中职煤矿电工学
上传时间： 2014-12-24
上传用户：lijinchuan
蓄电池保护
上传时间： 2014-12-24
上传用户：18602424091
开关电源电路设计要点与调试
标签： 开关电源电路
上传时间： 2014-12-24
上传用户：lxm
GBT 13722-1992 移动通信电源技术要求和试验方法
上传时间： 2014-12-24
上传用户：ynzfm
