The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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DSP Implementation of a Sinusoidal Encoder using linear Hall Sensor

선형 홀센서를 이용한 정현파 엔코더의 DSP 구현

  • 황정호 (숭실대학교 전기공학과) ;
  • 정찬수 (숭실대학교 전기공학과)
  • Received : 2011.07.29
  • Accepted : 2011.12.23
  • Published : 2012.02.01
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Abstract

The linear encoder used in the BLAC driving circuit consists usually analog type sensor, and need signal transform from analog sinusoidal to digital one for application in the PWM algorithm that is used to control motor current. When the motor is driven in low speed, it is required many operations and higher quality DSP to convert the hole sensor signal to digital one with enough resolution. In this paper, the another method to convert that signal with enough resolution without calculation of sine function is proposed. This is very simple and have high resolution even if the motor is driving in low speed. To verify the proposed method, BLAC motor is used, and it is proved that the motor is tracking well the reference step signal in the low speed as well as in the high one.

Keywords

References

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  1. Detection of Absolute Position for Magneto-Optical Encoder Using Linear Table Compensation vol.33, pp.12, 2016, https://doi.org/10.7736/KSPE.2016.33.12.1007