基于FPGA的高频电源模拟信号采集系统的实现  

Realization of High-frequency Power Supply Analog Signal Acquisition System Based on FPGA

作　　者：张颖超[1] 陈兆明[1] 张鹏宙 

机构地区：[1]南京信息工程大学信息与控制学院,江苏南京210044 [2]南京国电环保科技有限公司,江苏南京210061

出　　处：《仪表技术与传感器》2013年第12期49-51,共3页Instrument Technique and Sensor

基　　金：江苏省产学研联合创新资金前瞻性联合研究项目资助(BY2011111);PAPD资助;江苏省高校优势学科建设工程资助项目;江苏省农业科技自主创新资金项目

摘　　要：模拟信号的准确、快速和实时采集是电除尘器高频电源可靠运行的关键技术之一。文中设计了一种基于FPGA的工业级模拟信号采集方法。该系统采用串行通信的模数转换器AD7356解决高速与多通道的采集难题,并利用双口RAM完成高速A/D采样和速度较慢的CPU的速度匹配问题。与现有的高频电源采样方法比较,系统具有扩展性更强,工作可靠性更高,可移植性更好等优点。The accuraterapid and real-time acquisition of analog signals is one of the key technologies for reliable operation of the electrostatic precipitator high-frequency power supply. This paper designed an method of industrial-grade analog signal acquisi- tion which is based on FPGA. The system used the analog-to-digital converter AD7356 that is serial communication to solve the problem of high-speed and multi-channel acquisition and used dual-port RAM to complete the high-speed AD sampling and slower CPU speed matching problems. Compared with the conventional high frequency power source sampling method, the system has some advantages such as more extensible, higher reliability and better portability.

关 键 词：高频电源 FPGA AD7356 双口RAM 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]