一种高精度闭环数控直流电流源的研制

TN86; 基于直流电流源的原理,以AT89S52单片机为中心控制器,利用按键设置电流的输出值,通过单片机将该电流值送数码管显示;同时,通过D/A转换器DAC0808的数据通信端口将输出电流的数字量送入D/A转换器,转换为模拟量后输出,再通过U/I转换电路得到稳定输出的电流.经过实验测试,该数控电流源具有很高的精度值,可满足多种电流源的实验要求,且具有性能可靠、步进精度高、电路简单易懂、成本低廉等优点....

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Published in实验室研究与探索 Vol. 34; no. 2; pp. 75 - 80
Main Author 柴西林 史亚盼 杜丽霞
Format Journal Article
LanguageChinese
Published 西北师范大学知行学院,甘肃兰州,730070%兰州交通大学电子与信息工程学院,甘肃兰州,730070 2015
Subjects
AT89S52
DAC
数控
步进
电流源
AT89S52
电流源
DAC
current source
数控
步进
digitally control
stepping technique
Online AccessGet full text
ISSN1006-7167

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Abstract TN86; 基于直流电流源的原理,以AT89S52单片机为中心控制器,利用按键设置电流的输出值,通过单片机将该电流值送数码管显示;同时,通过D/A转换器DAC0808的数据通信端口将输出电流的数字量送入D/A转换器,转换为模拟量后输出,再通过U/I转换电路得到稳定输出的电流.经过实验测试,该数控电流源具有很高的精度值,可满足多种电流源的实验要求,且具有性能可靠、步进精度高、电路简单易懂、成本低廉等优点.
AbstractList TN86; 基于直流电流源的原理,以AT89S52单片机为中心控制器,利用按键设置电流的输出值,通过单片机将该电流值送数码管显示;同时,通过D/A转换器DAC0808的数据通信端口将输出电流的数字量送入D/A转换器,转换为模拟量后输出,再通过U/I转换电路得到稳定输出的电流.经过实验测试,该数控电流源具有很高的精度值,可满足多种电流源的实验要求,且具有性能可靠、步进精度高、电路简单易懂、成本低廉等优点.
基于直流电流源的原理,以AT89S52单片机为中心控制器,利用按键设置电流的输出值,通过单片机将该电流值送数码管显示;同时,通过D/A转换器DAC0808的数据通信端口将输出电流的数字量送入D/A转换器,转换为模拟量后输出,再通过U/I转换电路得到稳定输出的电流.经过实验测试,该数控电流源具有很高的精度值,可满足多种电流源的实验要求,且具有性能可靠、步进精度高、电路简单易懂、成本低廉等优点.
Author 柴西林 史亚盼 杜丽霞
AuthorAffiliation 西北师范大学知行学院,甘肃兰州730070 兰州交通大学电子与信息工程学院,甘肃兰州730070
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Author_FL CHAI Xi-lin
DU Li-xia
SHI Ya-pan
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DocumentTitleAlternate Research of Digitally Closed Controlled and High Precision DC Current Source
DocumentTitle_FL Research of Digitally Closed Controlled and High Precision DC Current Source
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Keywords AT89S52
电流源
DAC
current source
数控
步进
digitally control
stepping technique
Language Chinese
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Notes CHAI Xi-lin, SHI Ya-pan, DU Li-xia （ 1. Zhixing College, Northwest Normal University, Lanzhou 730070, China ; School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China）
A DC current source was designed by using AT89S52 microcontroller as the center controller. The current output value can be adjusted by touch-keys, single chip microcomputer sends the current value to digital tube display. At the same time, the data communication port of D/A converter DAC0808 sends the number of output current to D/A converter, which converts it to analog output, at last by U/I conversion circuit the stable output current can be achieved. After testing, this digitally controlled DC current source has high precision, can meet the requirement of a variety of current source experiments, and has reliable performance, high precision stepper. It is also simple, low cost, high practical value and development value, etc.
digitally control ; current source ; AT89S52 ; DAC ; stepping technique
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Publisher 西北师范大学知行学院,甘肃兰州,730070%兰州交通大学电子与信息工程学院,甘肃兰州,730070
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SubjectTerms AT89S52
DAC
数控
步进
电流源
Title 一种高精度闭环数控直流电流源的研制
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