摘要
对于移动性设备的信号调控问题,传统的PWM信号发生器存在精准度低、便携性差等问题。针对相关现状,特基于FPGA,设计出一款便携式PWM信号发生器,可实现占空比以1%步长可调、频率通过四个按键分别控制实现100 Hz、1 kHz、10 kHz、100 kHz的四个频率脉宽可调的方波信号发生器,并最终以10μs的最小分辨率在数码管上进行显示。实验结果表明,该系统电路产生的信号稳定可靠,还具有精度高、便携性好等优点。
Traditional PWM signal generators have problems with low accuracy and poor portability in signal regulation for mobile devices.In response to the current situation,a portable PWM signal generator has been designed based on FPGA,which can achieve a duty cycle adjustable in 1%step size and four frequency pulse width adjustable square wave signal generators of 100 Hz,1 kHz,10 kHz,100 kHz and can be controlled by four buttons,and finally displayed on a digital tube with the minimum resolution.The experimental results show that the signal generated by the system circuit is stable and reliable,and it also has advantages such as high accuracy and good portability.
作者
任青颖
庹忠曜
黄洵桢
李智禺
张贤宇
REN Qingying;TUO Zhongyao;Huang Xunzhen;LI Zhiyu;ZHANG Xianyu(Engineering Experimental Teaching Department,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;School of Electronic and Optical Engineering,School of Flexible Electronics(Future Technology),Nanjing University of Posts and Telecommunications,Nanjing 210023,China;School of Automation and School of Artificial Intelligence,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;School of Communication and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China)
出处
《大学物理实验》
2024年第4期108-114,共7页
Physical Experiment of College
基金
国家自然科学基金青年基金(61904089,62301135)
南京邮电大学教育科学“十三五”规划重点课题(GJS-XKT2001)
南京邮电大学研究生教育教学改革研究与实践课题(JGKT22_XYB02)
南京邮电大学大学生创新创业训练计划项目(CXXYB2024062,CXXYB2024065,CXXYB2024099)
东南大学MEMS教育部重点实验室开放课题基金资助课题项目(SEUMEMS202403)。
