›› 2011, Vol. 24 ›› Issue (9): 51-.

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  1. (西安工业大学 电信学院,陕西 西安 710032)
  • 出版日期:2011-09-15 发布日期:2011-10-24
  • 作者简介:郇宝贵(1984—),男,硕士研究生。研究方向:多媒体信息传输与处理。

Interface Design and Implementation for FPGA Incremental Encoder

 HUAN Bao-Gui, LEI Bin, WANG Peng   

  1. (School of Telecommunications,Xi'an Technological University,Xi'an 710032,China)
  • Online:2011-09-15 Published:2011-10-24



关键词: FPGA, 增量式光电编码器, 4倍频, 鉴相


Optical-incremental encoder,which is also called photoelectric anger-position sensor,is the core of device in measurement of motor speed and rotor position in driver system.The article researches on the incremental photoelectric encoder and analyzes its four fold frequency multiplication principle.It gives a method based on FPGA to multiply the signal of the incremental photoelectric encoder,differentiates its phase and counts its number.It has improved resolving power of coder and realized signal detection and position servo control of high accurate and high stable.The result indicates that the system can effectively eliminate noise and dither.The capability of restraining disturbing is improved.It is heritable and upgradable.

Key words: FPGA;incremental encoder;four fold-frequency subdivision;discriminator


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