基于AD7655的旋转变压器-数字转换器的软件实现

摘要

设计了一种基于片外高速16位A/D的旋转变压器-数字转换器.给出了系统各模块的设计思想和软件设计流程,完成了4极对旋转变压器的驱动和输出信号的调理、采样、解算、上传及存储,并对系统误差进行了分析.实验测试表明,系统具有结构简单、分辨率高、抗干扰性好、灵活性强等优点.%A resolver-to-digital converter based on high-speed 16 bit A/D is proposed. The system design concept and software design process are presented. The driver module and signal conditioning, acquisition, calculating, storage and uploading of the 4-pole resolver are completed as well. Meanwhile, the error of the system is discussed. The results show that the system achieves simple structure, high resolution, good anti-jamming performance and flexibility.