基于口袋实验室的便携式直流可调电源  

Portable DC Power Supply Based on Pocket Lab

作　　者：裴晓芳[1,2,3] 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)

机构地区：[1]南京信息工程大学电子与信息工程学院,南京210044 [2]无锡学院电子信息工程学院,无锡214105 [3]南京信息工程大学江苏省大气环境与装备技术协同创新中心,南京210044

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。

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.

关 键 词：口袋实验室 直流可调电源 旋转编码器 SOPC 增量型PID UC/GUI 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]