摘要
针对DSP芯片TMS320F2812自带的AD转换模块不能满足同步采集电流和电压参数要求的问题,设计了一种基于AD7606的多通道数据采集系统。详细介绍了系统中电压/电流输入电路、输入滤波电路、AD7606与TMS320F2812接口电路、AD转换程序的设计。测试结果表明,与TMS320F2812自带的AD转换模块进行AD转换的结果相比,采用AD7606进行AD转换的结果精度高、误差小,适合高精度AD转换电路。
In view of problem that self-carried AD conversion module of DSP chip TMS320F2812 cannot meet requirement of collecting parameters of current and voltage synchronously, a data collection system with multi-channel based on AD7606 was designed. Design of voltage/current input circuit, input filtering circuit, interface circuit between AD7606 and TMS320F2812, AD conversion program of the system were introduced in details. Test result shows that AD conversion result by using AD7606 has high precision and small error compared with AD conversion result by using self-carried AD conversion module of TMS320F2812, and it is suitable for AD conversion circuit with high precision.
出处
《工矿自动化》
北大核心
2013年第12期110-113,共4页
Journal Of Mine Automation
基金
中国科学院战略性先导科技专项(XDA01020304)
