during
共 142 篇文章
during 相关的电子技术资料，包括技术文档、应用笔记、电路设计、代码示例等，共 142 篇文章，持续更新中。
基于单片机的喷气织机纬纱张力测试系统
<p>纬纱张力的大小直接影响着织物质量,为了提高织物的质量,检测并控制纬纱张力非常必要。准确测量喷气织机运行过程中的纬纱张力,设计了基于单片机的喷气织机纬纱张力测试系统。利用Keil软件进行程序的编写与检测,在Proteus软件中成功进行仿真,仿真结果表明测试系统可以实现纬纱张力的实时检测。</p><p>Weft tension directly affects fabric quality.In
基于单片机的体育运动无线传感器网络性能比较研究
<p>在体育运动中,尤其对于跳高运动中,起跳时的起跳速度和力是获得最大跳跃的两个主要参数,要测量这两个参数,需要包含微控制器和传感器的无线传感器网络(WSN)来分别描述跳线的速度和力的结果,从而对运动员运动能力的评价。比较了无线微控制器在吞吐量,延迟和成本,并且应用具有最佳性能和成本的微控制器设计并实现了新的跳高可穿戴设备。在实验中,集成了3个部件,即输入,处理和输出。通过对比,结果表明ESP82
基于单片机和PLC控制的铁轨喷油监控系统
<p>在铁路运输的过程中经常会出现轨道严重磨损的问题。为了能够有效地解决此类问题,需要通过设计一种单片机和PLC控制监控系统来对铁轨内部的喷油设备进行全面控制,从而更好地减轻机车对弯道表面的磨损,并有效延长轨道的使用寿命。该系统主要是通过两种控制器来有效实现特定型号单片机的信号采集和信号存储功能。分析以AT89C52单片机为基础,结合EX2N实现喷油操作。如果能够借助专用的LabVIEW8.6为平
4G移动通信技术权威指南：LTE与LTE-Advanced.4G LTE.LTE
<p>Preface</p><p>During the past years, there has been a quickly rising interest in radio access technologies for providing</p><p>mobile as well as nomadic and fixed services for voice, video, and dat
高通蓝牙芯片QCC5144_硬件设计指导书
<p>高通(Qualcomm)蓝牙芯片QCC5144_硬件设计详细指导书（官方内部培训手册）</p><p><br/></p><p>其内容是针对硬件设计、部分重要元器件选择(ESD，Filter）及走线注意事项的详细说明。</p><p><br/></p><p>2 Power management </p><p>2.1 SMPS </p><p>2.1.1 Components sp
MOSFET开关过程的研究及米勒平台振荡的抑制
<p>设计功率MOSFET驱动电路时需重点考虑寄生参数对电路的影响。米勒电容作为MOSFET器件的一项重要参数,在驱动电路的设计时需要重点关注。重点观察了MOSFET的开通和关断过程中栅极电压、漏源极电压和漏源极电流的变化过程,并分析了米勒电容、寄生电感等寄生参数对漏源极电压和漏源极电流的影响。分析了栅极电压在米勒平台附近产生振荡的原因,并提出了抑制措施,对功率MOSFET的驱动设计具有一定的指导
直流电动机测速装置
<p>本系统采用电动机电枢供电回路串接采样电阻的方式来实现对小型直流有刷电动机的转速测量。该系统主要由二阶低通滤波电路,小信号放大电路、单片机测量显示电路、开关稳压电源电路等组成。同时自制电机测速装置,用高频磁环作为载体,用线圈绕制磁环,利用电磁感应原理检测电机运行时的漏磁,将变化的磁场信号转化为磁环上的感应电流。用信号处理单元电路将微弱电信号转化为脉冲信号,送由单片机检测,从而达到准确测量电机的
PW1555-2.0.pdf规格书
<p>PW1555 is a programmable current limit switch with input voltage range selection and output<br/>voltage clamping. Extremely low RDS(ON) of the integrated protection N-channel FET helps to<br/>reduc
PW2228A-1.8.pdf规格书下载
<p>The PW2228A is a high efficiency single inductor Buck-Boost converter which can supply the<br/>load current up to 1.5A. It provides auto-transition between Buck and Boost Mode. The PW2228A<br/>oper
PW4055_2.0.pdf规格书下载
<p>The PW4055 is a complete constant-current /constant-voltage linear charger for single cell lithiumion batteries.Its ThinSOT package and low external component count make the PW4055 ideally<br/>suit
高通(Qualcomm)蓝牙芯片QCC5151_硬件设计详细指导书（官方内部培训手册）
<p>高通(Qualcomm)蓝牙芯片QCC5151_硬件设计详细指导书（官方内部培训手册）</p><p>共52页</p><p>其内容是针对硬件设计、部分重要元器件选择(ESD，Filter）及走线注意事项的详细说明。<br/></p><p><br/></p><p>2 Power management </p><p>2.1 SMPS </p><p>2.1.1 Component
Machine Learning Healthcare Technologies
Much has been written concerning the manner in which healthcare is changing, with<br />
a particular emphasis on how very large quantities of data are now being routinely<br />
collected during the ro
Large-Scale Scientific Computing
The 9th International Conference on Large-Scale Scientific Computations<br />
(LSSC 2013) was held in Sozopol, Bulgaria, during June 3–7, 2013. The conference<br />
was organized and sponsored by the
Artificial+Intelligence+in+Power+System
n recent years, there have been many books published on power system optimization.<br />
Most of these books do not cover applications of artifi cial intelligence based methods.<br />
Moreover, with t
Digital+Control+Applications
My association with the theory of controls in continuous time started during my studies at<br />
the Indian Institute of Technology, Kharagpur, India, in 1974 as an undergraduate student<br />
in the
Mobile+Information+Systems+Leveraging
Since OpenStreetMap (OSM) appeared more than ten years ago, new<br />
collaborative mapping approaches have emerged in different areas and have become<br />
important components of localised informati
RFID+and+Sensor+Network+Automation
With the continued growth in the world's population, there is a need to ensure availability of<br />
enough food to feed everyone. Advances in science and technology have helped not only to<br />
incr
Smart+Grids
n present power system, the engineers face variety of challenges in<br />
planning, construction and operation. In some of the problems, the engineers need<br />
to use managerial talents. In system d
Power System Stability Modelling
Modern day large power systems are essentially dynamic systems with stringent<br />
requirements of high reliability for the continuous availability of electricity.<br />
Reliability is contingent on
Optimal+Long-Term+Operation
This book deals with a very important problem in power system planning<br />
for countries in which hydrogeneration accounts for the greatest part of the<br />
system pow