ASP站长助手5.0

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.

用于lex和yacc的c++及c语言的文法,可用来构造C++语言的编译器-for lex and generates a c c language and grammar, can be used to construct the C language compiler

C++程序供初学者使用-C program for beginners

模拟股票下载小软件,可以组建自己的股票学习或操作环境-Simulation of the stock to download a small software, can set up their own shares learning or operating environment

java程序实现的通俗易懂的饿汉式单例模式的实现代码-java program to achieve a hungry man is user-friendly single-mode Example realize code

电话PSTN线路上FSK处理软件-PSTN phone line on FSK processing software. . . . . . . . .

微软为中国农历编写的系统程序，大家可以-Microsoft for the Chinese Lunar New procedures for the preparation of the system, we can

progress bar control in vc-progress bar control in vc++

一个可以抓图的程序-screen in a procedure can

这是关于802.11协议如何让接受，如何发送数据包的一个很精彩.希望对大家有所帮助-This is the 802.11 protocol on how to get accepted, how to send packets of a very splendid. Hope to help everyone