摘要
随着电子技术的不断发展,电力电子给人类生活带来便捷时同时也带来许多困扰。交流电路传输时对日常仪器产生电磁干扰,降低了仪器的性能。在此背景下以基于开关电容技术的FPAA芯片AN221E04为例对FPAA技术在工频滤波方面展开研究。首先介绍了FPAA技术特点及软件,然后对设计流程做了详细描述,最后应用软件进行仿真验证设计。软件仿真验证得滤波器阻带为0.4 Hz、通带为2 Hz,在50 Hz在处衰减为80 dB的巴特沃斯工频滤波器,滤波效果达到预期设计要求。
With the continuous development of the electronic technology,power electronics not only brought convenience to human life,but also a lot of troubles.During AC circuit transmission,the instruments suffer from electromagnetic interference in daily life,lowering the performance.In this context,the study of the FPAA technology in terms of power frequency filtering on the FPAA chip AN221E04 was carried out,which was based on switched capacitor technology.Firstly,the FPAA technical characteristics and the software were introduced.Secondly,a detailed description of the design process was described.Finally,the application software design was verified by simulation.The 50 Hz Butterworth notch filter with the passband 3.01 dB,stopband 30 dB,and the bandwidth of stop band 0.4 Hz was successfully developed.The results by software simulation showed the stopband of the filter was 40 mHz,the passband was 2 Hz and decreased to 80 dB at 50 Hz,and the filtering effect achieved the desired requirement.
出处
《常州大学学报（自然科学版）》
CAS
2013年第3期57-61,共5页
Journal of Changzhou University：Natural Science Edition
基金
常州市武进区科技发展(工业)计划项目(WG2011003)
2012年江苏省高等学校大学生实践创新训练计划立项项目(2012JSSPITP1798)
