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结构修改1
- 基于c8051f330芯片开发的电机正反转控制系统,能同时完成参数的设定与显示,系统具有4~20mA的标准模拟信号输出-c8051f330 chip development based on the reversion motor control system parameters can be completed simultaneously with the creation shows that the system has a 4-20mA analog signal output st
zhiliudianliuyuan
- 本系统以直流电流源为核心,AT89S52单片机为主控制器,通过键盘来设置直流电源的输出电流,设置步进等级可达1mA,并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号,经过D/A转换器(AD7543)输出模拟量,再经过运算放大器隔离放大,控制输出功率管的基极,随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控,输出电流经过电流/电压转变后,通过A/D转换芯片,实时把模拟量转化为数据量,再经单片机分析处理, 通过数据形式的反馈环节,使电流更加稳定
IDC3516
- IDC3516-4-20mA电流环隔离接口芯片的应用-IDC3516-4-20mA current loop isolation Application Interface Chip
liuliangjibiao
- PIC16F876单片机,有4到20MA电流输出,低功耗等特点,使用于工业仪表行业-PIC16F876 microcontroller, to a four 20MA current output, low power consumption and other characteristics, Instrumentation used in industrial sectors
220
- 显字数显表源程序,拿来就可以用,采集4~20MA电流,-significant source of wordage a table, can be taken out, collecting 4-20MA current,
4-20mA-PWM
- 8051驱动LED的4至20毫安的PWM程序。C环境
4-20mApwmout
- 工业仪表常用到4-20mA输出此程序通过C51单片机模拟输出PWM 提供了很好的思路和事例
AD421.rar
- 数字接口转4-20MA 电流环接口软件,包括控制软件及芯片资料,Digital interface to 4-20MA current loop interface software, including control software and chip information
a.rar
- PWM经过RC滤波产生电压,经过XTR115产生4-20mA电流输出,要点是XTR115的电压输入问题,自身为两线制,+5V输出提供不了较大电流,需要用DCDC,RC滤波采用钽电容和4.7k-4.9k的低温漂电阻能得到较高线形度,PWM输出为AVR单片机16位,模式15,不分频,PWM voltage generated through RC filter, after XTR115 have 4-20mA current output, the key points of the voltag
test_AD421.rar
- AD421 是美国ADI 公司推出的高性能模数转换器,其优良特性使其被广泛应用于各种智能变送器中及其他工 业控制场合中AD421程序,产生4到20MA电流,,AD421 procedures, resulting in 4 to 20mA current
4
- 照片自动分类归并,自动读取照片文件的exif信息(delphi),有利于按日期进行整理归档。-collect photo files according to the date
Electric_Clock
- 上个学期自己写的汇编课程设计,文档就不发了. 七段码电子表显示程序 1.七段码电子表显示程序 2.菜单选择:设置时,分,秒,开始,退出 3.模拟七段码管显示时,分,秒 4.简单界面修饰-Last semester to write their own compilation of curriculum design, the document is not made. Seven-Segment Code electronic table shows the procedu
HVViewer
- 一个综合摄像机采集示例,实现功能包括: (1) 抓取一帧图像至内存; (2) 循环采集图像之内存; (3) 转换成RGB 24格式位图 (4) 摄像机参数调节; (5) 图像白平衡。-An integrated camera sample collection, the achievement of features include: (1) crawling to an image memory (2) image acquisition cycle of memory
pwmAD
- 现代控制中经常需要电压或4ma--20ma电流信号,用AD芯片的话比价贵,用该方法可以达到精度0.5。成本小-Often required in modern control voltage or 4ma- 20ma current signal, using AD expensive chip rate, then, can be achieved using this method the accuracy of 0.5. The cost of small
Led05222
- 为了实现让单片机显示阿拉伯数字的功能,让我们来实现最简单的数码管显示: 单个数码管的静态驱动。 AVR单片机的端口驱动能力高达20mA,可以直接驱动数码管。可以利用ATmeg48 单片机的PD端口刚好可以驱动数码管的8个段。 这个实验的目的是在单个数码管上依次显示0,1,2,3,4,5,6,7,8,9,A, B,C,D,E,F共16个字符,为显示十六进制数做好技术准备。-In order to achieve single-chip display Arabic nume
DM134b_Test
- 点晶DM134B恒流驱动芯片测试程序,包括20mA和40mA测试,FPGA采用LATTICE的M4A5-Point crystal DM134B constant current driver IC testing procedures, including the 20mA and 40mA test, FPGA using M4A5 of LATTICE
8Circuittesting
- Detector8路巡回检测仪这是一个完成8 Circuit 检测信号的程序输入为1-5v 4-20ma 0-5v 输入-Road Tour Detector8 Detector is a complete 8 Circuit testing procedures signal input 1-5v 4-20ma 0-5v input
Voltage
- 本设计以AT89S52为核心,通过A/D、D/A转换、V/I转换及独特的算法实现了高精度的,电流输出范围为20mA~2000mA的数控直流电流源。该电流源具有电流可预置,1mA步进,同时显示给定值和实测值等功能。-The design AT89S52 as the core, through the A/D, D/A converter, V/I conversion and a unique high-precision algorithm, the current output range
INA125
- 此芯片可以为单片机供电,带10,5,2.5,1.3v四个基准源(15mA),可以进行模拟信号放大,da出来可以放大成(1-5V),4-20mA等信号-The microcontroller chip can be powered with 10,5,2.5,1.3 v 4 reference source (15mA), can be an analog signal amplification, da come out can zoom into the (1-5V) ,4-20mA sign
AD5422
- MSP430与AD5422的通讯程序,实现高精度4——20mA电流输出。-MSP430 with the AD5422' s communication procedures to achieve high-precision 4- 20mA current output.