自己遍的牛顿迭代法求解二元二次方程的程序 迭代步数可以自己设定...

lpc2xxx开发板，字库文件说明文档-lpc2xxx development boards, font document documentation.

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字谜游戏，我在大学时候用C做的一个小程序，可供参考-crossword puzzle games, I spent time at the university C do a small program available!

usb设计利用Cadence PCB SI分析特性阻抗变化因素-usb design using Cadence PCB SI analysis of the characteristic impedance changes in factors

xml transform xlt tools-xml transform xlt tools

本程序是读取钱龙股票数据的，是开发股票软件不可缺少的核心。-read Qian Longsheng stock data, the development of software stocks indispensable core.

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a simple XML util for managing documents and files in XML format

WinDriver9.0安装包。它支持windows XP/2000/98,Linux/WindowsCE.-WinDriver9.0 installation package. It supports windows XP/2000/98, Linux/WindowsCE.

恒流驱动和提 高LED的光学效率是LED 应用设计的两个关键问题，本文首先介绍大功率LED的应用及其恒流驱动方案的选择指南，然后以美国国家半导体(NS)的产品为例，重点讨论如何巧妙应用 LED恒流驱动电路的采样电阻提高大功率LED的效率，并给出大功率LED驱动器设计与散热设计的注意事项。-LED constant current drive and to improve the optical efficiency of LED application design of two key issues, this paper describes the application of high-power LED constant current driver and the choice of the program guide, and then the United States National Semiconductor (NS) products, for example, focus on how skillful application of LED constant current driver circuit of the sampling resistor to improve the efficiency of high-power LED, and gives high-power LED driver design and thermal design considerations.