数控直流电源毕业设计论文

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1、东华理工大学长江学院毕业设计(论文)题目数控直流电流源英文题目NCDCCURRENTSOURCE学生姓名李金壕学号指导教师高浪琴职称副教授专业电子信息工程二零零八年六月六日34EastChinaUniversityofTechnologyoftheYangtzeRiverCollegeGraduationDesign(Papers)SubjectNCDCCURRENTSOURCEStudentNameJinhaoLiStudentNumberTheinstructoLangqinGaoJobTitleAssociateProfessorProfessionalEl

2、ectronicandInformationEngineeringJune6,200834摘要随着电子技术的不断进步，对电子仪器的要求也不断提高。电源作为电路的动力源泉更是扮演着越来越重要的角色，不论是学校实验室还是维修中心都离不开实验电流源，然而传统的电流源不论是在控制精度还是输出特性上都无法满足要求。随着单片机技术的不断发展和D/A，A/D技术的不断成熟使得数控电源成为可能，数控电流源不论是在控制精度还是在可操作性上都有传统电源无法比拟的优势。本设计软件设计采用汇编语言，对单片机进行编程实现各项功能。软件设计的关键是对直流电流源的正负步进电流控制以及显示。设计

3、软件完成三个功能：系统初始化；键盘检测和D/A转换。本设计在参考传统电流源以及普通数控电流源的基础上，充分考虑了性价比的同时更极大地提高了数控电流源的准确性，通过软件修正后在使用普通元件的情况下，数控电流源的性能也达到了较高的水平。关键字：高精度；DAC0832；D/A转换；恒流源；34ABSTRACTAelectriccurrentsourceofmachinecontrolbasedOnsingle-chipmicrocomputerProgressunremittinglytherequesttotheelectronicsinstrumenttechnic

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