基于MCS-51单片机的数控恒流源设计  

Design of Digital Control Current Source Based on MCS-51 MCU

作　　者：吴宁胜[1] 

机构地区：[1]浙江商业职业技术学院,浙江杭州310053

出　　处：《电子测试》2015年第3期15-17,共3页Electronic Test

摘　　要：为了克服传统恒流源无法实现精确步进的缺点,设计了基于MCS-51单片机的数控恒流源。系统由压控恒流单元、数控单元、稳压电源等几部分组成。分析了工作原理,并给出了硬件和软件的具体实现方法。测量结果表明,该设计具有控制精度高、纹波电流小、工作稳定等优点,有很强的实用性,对相关产品的研制有重要的指导意义。In order to overcome the shortcomings of traditional current source, which can not archieve precise step adjustment,a digital controlled current source based on MCU has been designed.The system consists of voltage-controlled current unit,digital control unit,power supply and other components.The working principle is analysed and the concrete implementation of hardware and software is given.Since the measurement results show that the design has many advantages ,including high control precision,low ripple current,stable,etc,it has strong practicability and an important guiding significance to the development of related products.

关 键 词：数控 压控恒流源 单片机 D/A转换 

分 类 号：TP368.12[自动化与计算机技术—计算机系统结构] TN86[自动化与计算机技术—计算机科学与技术]