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介绍单相全桥逆变器的工作原理, 阐述产生SPWM波和实现PI 控制的算法, 给出以DSP( 数 字信号处理器) 实现控制的软件流程。实验表明利用软件完成逆变器控制是可行的。 关键词: 正弦逆变器 -Introduction of single-phase full-bridge inverter working principle, the resulting SPWM wave and realize PI control algorithm to DSP (digital signal processors) to achieve software flow control. Experiments show that the use of software controlled inverter is feasible. Key words: sine inverter

这是一个和跨文化交际有关的文章，很不错，可以学习用，可以找到一些我们的缺点，出国什么都会小心了~`-This is a cross-cultural communication and the article quite good, and can learn from, we can find some shortcomings, what will be going abroad to beware

Digital Video and HDTV Algorithms and Interfaces

新生作家尚飞的成名作，也是一部争议非常强烈的网络小说。 有人讥讽这部小说是垃圾小说，为什么？不否认本小说的过激行为，但却道出了这个社会的真实面貌。难道华丽的文字和浪漫的爱情及天花乱坠的道德观念才是一个作家的职责吗？ 有人说：现代的作家都死了！因为他们的文字都被铜臭所污染了。是呀！看看书市上的小说，有几部有意义的小说呢？他们过多的被利益所左右，那怕一本豪无意义的小说也摆在了新华书店的柜台上，为什么？因为主人身后的那点背景-Shangfei freshmen writer for the fame, as well as a controversial network of very strong novels. Some ridiculed the book is rubbish novels, and why? The novel does not deny the excesses, but it has touched this community"s true face. Are flowery language and the romantic idea of love and the moral values is the responsibility of a writer? Some people say : modern writers are all dead! The letter because they were contaminated by Nixon. Yes! Look at the books on the fiction, and a few meaningful fiction? They are too much influenced by interests, even a meaningless fiction ho has been put in by Xinhua Bookstore counters, why? Because the master behind the point background

这是一个博士写的一本好书,关于Linux系统的源码分析的,对研究Linux系统和学习操作系统的朋友,有很大的帮助!-Dr. written a very good book on the Linux source code analysis for the research and learning Linux operating system friends, a great help!

公共对象请求代理结构CORBA 说明、编程及实例 PDF格式-Common Object Request Broker Architecture CORBA note, programming and examples of PDF format

C语言编程实例PDF 经典C语言学习资料，非常有用-C language programming examples of PDF classical C language learning materials, very useful

Efilm workstation 2.12中文手册-Efilm workstation 2.12 Chinese Manual

VFP电子书籍,很全面的.-VFP electronic books, is very comprehensive.

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