摘要：对两种旋转变压器的处理电路进行了分析、比较以及实验验证。一种基于通用芯片，采用Delta-Sigma调制，辅以数字滤波，分析解算旋转变压器的角度；另一种借助专用旋变接口芯片，直接获取旋转变压器的角度。对这两种处理电路进行了比较。结果表明，二者均具有很强的工程实用价值，前者在解算精度方面比后者高，通用性能好，使用起来灵活方便；后者在快速响应方面的性能比前者优越，专用性能强。

关键词：角度测量；处理电路；旋转变压器；Delta-Sigma调制
Abstract: Two resolver processing circuits were analyzed, compared and experimental validated. One adopted universal chip to calculate the angle of resolver, which was based on Delta-Sigma modulation principle and digital filter. As an alternative way, a special resolver interface chip was used to directly obtain the resolver angle. Comparison of two proposed processing circuits shows that both methods have strong practical value. The former has higher precision and more flexible operation, while the latter offers faster response and improved special performance.

Key words: angle measurement; processing circuit; resolver; Delta-Sigma modulator