摘要
直流可调电源是实验室中常用的设备,为了方便学生开展课外实验,设计一种基于FPGA口袋实验室的直流可调电压源。该设计系统由口袋实验室模块、触摸显示屏模块以及直流可调电源模块组成,利用SOPC技术结合增量型PID算法实现电压的精确控制,并在Nios II中使用uC/OS II操作系统,移植uC/GUI图形界面,设计显示界面。系统测试结果表明,利用旋转编码器调节可实现0 V~23.7 V的电压输出,步近50 mV,输出误差低于1%,最大输出电流3 A,最大输出功率达到18 W,具有体积小巧、输出精度高、携带方便的特点。
DC power supply is a common instrument in laboratory,in order to facilitate students to carry out experiments,a DC power supply based on FPGA pocket lab is designed.This system includes a pocket lab,a touch screen and a DC power supply module,SPOC technology and increment PID control are used to realize accurate voltage control.Based on Nios II,uC/OS II operat⁃ing system is built and uC/GUI graphics interface is transplanted.The experimental and test results show that the rotary encoder can adjust the voltage output of 0 V~23.7 V,step 50 mV,the output error is less than 1%,the maximum output current is 3 A,the max⁃imum output power is 18 W,it has the characteristics of compact size,high output precision and portability.
作者
裴晓芳
范阳
张甜梦
王硕
谈潘锋
PEI Xiaofang;FAN Yang;ZHANG Tianmeng;WANG Shuo;TAN Panfeng(School of Electronic&Information Engineering,Nanjing University of Information Science&Technology,Nanjing 210044;School of Electronic&Information Engineering,Wuxi University,Wuxi 214105;Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology,Nanjing University of Information Science and Technology,Nanjing 210044)
出处
《计算机与数字工程》
2024年第7期2201-2206,共6页
Computer & Digital Engineering
基金
教育部产学合作协同育人项目(编号:202101218017,202101355055,202102563011)
南京信息工程大学无锡校区研究生创新实践项目(编号:WXCX201919)
无锡学院教学改革研究重点课题(编号:JGZD202107)
2021江苏省大学生创新创业训练计划项目(编号:202113982033H,202113982034Y)资助。
