摘要：设计了一套基于TMS320F28335的正余弦旋转变压器解码系统。分析了正余弦旋转变压器的基本工作原理；给出了该解码系统硬件设计方案，对激励信号产生和调理电路、正余弦信号调理电路进行了具体分析；设计了位置解码软件系统，详细分析了解码算法，并给出了软件流程图；最后对整个系统进行了实验验证，结果表明利用该解码系统能够精确获得永磁电机转子的绝对位置，具有实用性。
关键词：TMS320F28335；正余弦旋转变压器；解码系统
Abstract: This paper designed a sinecosine resolver decoding system based on TMS320F28335. At first, the fundamental working principle of sinecosine resolver was analyzed, then the hardware design scheme of the decoding system was given and the excitation signal generating and conditioning circuit and the sinecosine signal conditioning circuit were analyzed in detail, then designed the position decoding software system, the decoding algorithm was analyzed in detail, and the software flow chart was given; Finally, the experimental verification was made. The experimental results show that the decoding system can get the absolute position of permanent magnet synchronous motors rotor precisely, and it has practicability.
Key words: TMS320F28335; sinecosine resolver ; decoding system