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最近 LCC 谐振变换器备受关注，因为它优于常规串联谐振变换器和并联谐振变换器：在负载和输入变化较大时，频率变化仍很小，且全负载范围内切换可实现零电压转换（ZVS）。本文介绍了LLC型谐振变换器的分析方法，回顾了LLC型谐振变换器的实际设计要素。其中包括设计变压器和选择元器件。采用一设计实例，逐步说明设计流程，有助于工程师更加轻松地设计LLC谐振器。(Recently LCC resonant converter has attracted much attention, because it is better than that of the conventional series resonant converter and parallel resonant converter in the load and input change, frequency change is still very small, and the whole range of the load switch can realize zero voltage switching (ZVS). In this paper, the analysis method of LLC resonant converter is introduced, and the practical design elements of LLC resonant converter are reviewed. Including the design of transformers and components. A design example is used to explain the design process step by step, which is helpful for engineers to design LLC resonators more easily.)

prony code for pmu data

频谱分析Spectrogram支持wave-Spectrogram

说明：  用于生成回波以进行仿真研究，内含一些设定好的数据(Used to generate echo for simulation study)

钟面上的时针和分针之间的夹角总是在 0 ～180之间 ( 包括 0 和180 ) 。举例来说，在十二点的时候两针之间的夹角为 0 ，而在六点的时候夹角为180 ，在三点的时候为90 。本题要解决的是计算 12:00 到 11:59 之间任意一个时间的夹角。(The angle between the hour and minute hands of the clock face is always between 0 to 180 (including 0 and 180). For example, twelve o' clock, when the angle between the two pin 0, in the six o' clock when the angle is 180, three points for 90. This question must be resolved are the angle of the calculation of 12:00 to 11:59 any one time.)

Android 安卓文本矩阵MatrixText应用例子，简单的例子，适合Android初学者，不多介绍了，偶对此也不太熟悉。

本书介绍了线性系统和数字信号的基础知识，对学习数字信号处理很有帮助。(this book is about linear system and digital systems,which is helpful to people learning digital signal processing)

J2EE配置指南（讲解j2ee开发环境的配置）-J2EE Deployment Guide (J2ME development environment on the configuration)

对于刚开始学习ps的人来说，有一本简单介绍制作典型图像效果的书，是件有意义的事，这本书会给你帮助-just started learning for the people ps, a brief introduction produced typical images of the book is a meaningful thing, this book will help you

主要是对.net序列化方法进行包装，方便将对象序列化成xml或二进制，或者反序列化。(Basically, the.Net serialization method is packaged to facilitate the sequence of objects into XML or binary, or anti serialization.)