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电源技术 DN458降压转换器简化低电压设计
 
Many system designers need an easy way to producea negative 3.3V power supply. In systems that alreadyhave a transformer, one option is to swap out the existingtransformer with one that has an additional secondarywinding. The problem with this solution is that manysystems now use transfor ...
单片机编程 基于凌阳单片机的步进电机加减速的控制方法
提出一种基于凌阳单片机的步进电机加减速的控制方法。采用凌阳科技推出的16位结构工控单片机SPMC75F2413A为控制器，由Allegro公司生产的两相步进电机专用驱动器件SLA7042M构成步进电机的驱动电路，在传统的3段直线加减速控制算法基础上增加至7段S形曲线加减速过程，控制步进电机的启动和停止。实验结果表明，该控制方法克服 ...
数学计算 The program md.f implements a simple molecular dynamics simulation in continuous real space. The vel
The program md.f implements a simple molecular dynamics simulation in continuous real space. The velocity Verlet algorithm is used to implement the time stepping. The force and energy computations are performed in parallel, as is the time integration. (The program uses some Fortran90 features, so an ...
matlab例程 The main file in this list of programs is "vblast.m". Type "help vblast" on the command line for det
The main file in this list of programs is "vblast.m". Type "help vblast" on the command line for details.Study the coding
by stepping through the program. These programs require around 5000 packets for reasonable plotting accuracy.This has been
implemented for a 2x2 system. The reader can program o ...
文章/文档 Communication software and platform develop sketch map and content and wrap up and step the computer
Communication software and platform develop sketch map and content and wrap up and step the computer network, such multi-platform information, in order to offer its explanation relying mainly on stepping the platform of reference mainly as railway application,etc
数值算法/人工智能 The 2D CFD Program NaSt2D The program is a 2D solver for the incompressible, transient Navier-Sto
The 2D CFD Program NaSt2D
The program is a 2D solver for the incompressible, transient Navier-Stokes equations including the temperature equation and free boundary problems. It uses finite differences for discretization on a structured equidistant staggered grid, central and upwind (donor-cell) d ...
Internet/网络编程 Asp.Net探针0.90源码（Asp.net2.0版） 探测信息如下： 服务器计算机名 http://localhost/ 服务器IP地址 127.0.0.1 服务器域名 loc
Asp.Net探针0.90源码（Asp.net2.0版）
探测信息如下：
服务器计算机名 http://localhost/
服务器IP地址 127.0.0.1
服务器域名 localhost
服务器端口 80
服务器IIS版本 Microsoft-IIS/6.0
本文件所在文件夹 E:\downCode\ServerInfo\
服务器操作系统 Microsoft Windows NT 5.2.3790 Service Pack 1
系统所在文件夹 C ...
技术资料 基于51单片机的多功能智能遥控窗帘的设计
多功能智能遥控窗帘系统广泛地应用于家居、办公室等场合,同时也是智能家居的一部分。该设计主要利用STC89C52单片机核心电路、光敏电阻电路、步进电机电路、温湿度传感器、红外线控制电路、AD转换电路、LCD1602液晶显示屏等模块完成精确控制窗帘的开和关。multi-functional intelligent remote control curtain system is wi ...
技术资料 基于STM32的智能小车四轮驱动控制系统设计
在传统智能小车驱动电路设计中,较多考虑使用直流电机还是步进电机,电机功率、能耗等性能参数。使用具有armCortexM4内核的STM32嵌入式平台控制四轮的4个直流电机。文章基于PWM技术及PID算法,对四轮进行精准地速度、转向及启停控制,实验表明此小车具有优越各种地形适应能力。In the traditional intelligent car drive circui ...