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在motor的lab21里找到一点，但是太少了，基本讲不明白，想问下哪里还能找到相关的原理介绍啊，主要是就想看下分理出高频电流后，通过什么原理把角度解算出来的，知道的大大能否指点下，给点相关论文看下也可以，不胜感激~~
http://www.ti.com/ww/en/mcu/instaspin/instaspin-zero-and-slow-speed.shtml?DCMP=ep-mcu-c2x-gen&HQS=ipd#Initial-Position-Detection
以上链接会有帮助。
