搜索:Times

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https://www.eeworm.com/dl/571/21276.html 模拟电子

高增益K波段MMIC低噪声放大器

  基于0.25gm PHEMT工艺,给出了两个高增益K 波段低噪声放大器.放大器设计中采用了三级级联增加栅宽的电路结构,通过前级源极反馈电感的恰当选取获得较高的增益和较低的噪声;采用直流偏置上加阻容网络,用来消除低频增益和振荡;三级电路通过电阻共用一组正负电源,使用方便,且电路性能较 ...
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https://www.eeworm.com/dl/502/26709.html 单片机编程

基于单片机的LED汉字显示屏的设计

文中详细介绍了由STC89C52RC单片机、74HC154芯片、晶振电路、复位电路、驱动电路、16×16 LED点阵构成的LED汉字显示屏系统。设计采用STC89C52RC单片机为微控制器,74HC154为译码器、PNP型三极管8550构成行驱动电路,NPN型三极管8050构成列驱动电路,采用4个8x8LED显示器级联构成16×16 的点 ...
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https://www.eeworm.com/dl/505/24314.html 电源技术

手持式高功率电池充电器

  As the performance of many handheld devices approachesthat of laptop computers, design complexity also increases.Chief among them is thermal management—how doyou meet increasing performance demands while keepinga compact and small product cool in the user’s ...
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https://www.eeworm.com/dl/617/206209.html 压缩解压

We often get questions about how the deflate() and inflate() functions should be used. Users wonder

We often get questions about how the deflate() and inflate() functions should be used. Users wonder when they should provide more input, when they should use more output, what to do with a Z_BUF_ERROR, how to make sure the process terminates properly, and so on. So for those who ...
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https://www.eeworm.com/dl/542/206211.html 其他书籍

Zlib函数列表 We often get questions about how the deflate() and inflate() functions should be used. User

Zlib函数列表 We often get questions about how the deflate() and inflate() functions should be used. Users wonder when they should provide more input, when they should use more output, what to do with a Z_BUF_ERROR, how to make sure the process terminates properly, and so on. So f ...
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https://www.eeworm.com/dl/511752.html Matlab

基于MATLAB的特定人语音识别算法设计

通过MATLAB平台建立一个GUI界面,接着对一组语音信号的输入进行预处理及端点检测,提取特征参数(MFCC),形成参考模块。然后再对一组相同的语音信号输入进行同样的操作作为测试模块,与参考模块进行DTW算法进行匹配,输出匹配后的识别结果。 ...
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https://www.eeworm.com/dl/522045.html 书籍

Optical+Communications+Essentials

Ever since ancient times, people continuously have devised new techniques and technologies for communicating their ideas, needs, and desires to others. Thus, many forms of increasingly complex communication systems have appeared over the years. The basic motivations behind each n ...
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https://www.eeworm.com/dl/571/20533.html 模拟电子

ADIS16334安装_机械设计指南和示例

ADIS16334是一款薄型、完全校准的MEMS惯性测量单元(IMU)。图1为该封装的顶视图,其中包括四个安装孔,配备嵌入式安装架,有助于控制附加硬件的整体高度。安装孔为M2 × 0.4 mm或2至56个机械螺丝提供了足够的间隙。 ...
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https://www.eeworm.com/dl/571/20605.html 模拟电子

AD9880色彩空间转换器用户指南

AD9880中的色彩空间转换矩阵(CSC)是一个3 × 3矩阵,可提供矩阵中所有系数下的完全编程能力。每个系数均为12位宽,以保持信号完整性。CSC可在高达150 MHz的速度下运行,在60 Hz速率时支持1080 p。CSC支持“任意至任意”色彩空间,支持RGB、YUV、YCrCb等格式。 ...
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https://www.eeworm.com/dl/566/35018.html 嵌入式综合

Fastwel单板计算机模块参数

Fastwel是一款基于AMD Geode LX800(500MHz)处理器的单板计算机,PC\104支持PCI(32位和16位ISA)。支持Linux,嵌入式Windows XP,QNX。CPB905的所有组件,包括CPU和板载内存均使用焊接从而提供高抗振性。并有一组丰富的接口:2个快速以太网端口,7个COM端口,4个USB2.0端口,支持视频输出(CRT,TFT ...
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