摘要
利用轴角-数字转换(RDC)芯片AD2S80A和旋转变压器,可组成高精度的双路位置检测系统。介绍了这种测角系统的工作原理、电路设计,研究了它与DSP的接口设计问题,并利用锁存器和三态数据缓冲器,设计出了双路高精度位置检测系统的接口电路,解决了DSP一次读取两个AD2S80A的延时问题,可满足DSP实时控制要求。
With the application of resolver to digital converter AD2S80A, a double channel angle measuring system was designed. The principle of this angle measuring system was introduced first. Then the interface circuit between the AD2S80A and the DSP controller was discussed. At last, a double channel and high speed interface circuit composed of latches and three states of matter data buffer was given. The time delay problem aroused when DSP read two AD2SSOA at one time is solved and the DSP requirement for realtime control is satisfied.
出处
《微特电机》
北大核心
2009年第8期12-14,18,共4页
Small & Special Electrical Machines
