EMG extractor and blink detection for human health monitoring

  • Authors

    • Aanchal Jha
    • M. Ganesh Lakshamana Kumar
    2018-05-10
    https://doi.org/10.14419/ijet.v7i1.1.12648
  • Comparator, Current simulator, EMG extraction, functional electrical simulation (FES), programmable gain amplifier.
  • In this paper we have proposed noise free EMG extractor for biomedical applications and also provide method for detecting blink signal. EMG signal is applied to preamplifier followed by Chebyshev filter and programmable gain amplifier further this processed EMG signal is applied to comparator to detect the blink. This topology is designed in UMC 180nm CMOS technology. Amplifier with gain of 81.155 dB and CMRR of 155.197 dB is designed. Preamplifier gain of 32.1244 dB with CMRR of 76.0743 dB which leads to common mode cancellation at priliminary stage. It also provide input referred noise ranges from 90 to 101.8636 µ V/sqrt(Hz) to reduce the noise for overall system. 4th order Chebyshev filter provides filtering with slope of -80 dB/decade with leads to reduce the unwanted signals. Filtered EMG signal is applied to programmable gain amplifier where gain ranges from 0 to 23 dB.It consumes power of 0.3µ W at 1V supply voltage.

  • References

    1. [1] Oonishi Y, Oh S & Hori Y, “A new control method for power assisted wheelchair based on the surface myoelectric signalâ€, IEEE Trans- actions on Industrial Electronics, Vol. 57, No. 9, (2010), pp.3191–3196.

      [2] Artemiadis PK & Kyriakopoulos KJ, “An EMG-based robot control scheme robust to time-varying EMG signal featuresâ€, IEEE Trans-actions on Information Technology in Biomedicine, Vol.14, No.3, (2010), pp.582–588.

      [3] Yazicioglu RF, Merken P, Puers R & Van Hoof C, “A 60 µ W 60 nV/sqrtHz readout front-end for portable biopotential acquisition systemsâ€, IEEE Journal of Solid-State Circuits, Vol.42, No.5, (2007), pp.1100–1110.

      [4] Li Q, Tan KHR, Hui TT & Singh R, “A 1-V 36-µW low-noise adaptive interface IC for portable biomedical applicationsâ€, European Solid-State Circuits Conference, (2007), pp.288–291.

      [5] Rieger R, “Variable-gain, low-noise amplification for sampling front endsâ€, IEEE Transactions on Biomedical Circuits and Systems, Vol.5, No.3, (2011), pp.253–261.

      [6] Hsu YP, Lin YT, Chen CH & Lu SS, “A feed-forward automatic-gain control amlifier for biomedical applicationsâ€, Proceedings of Asia-Pacific Microwave Conference, 2007.

      [7] Tripurari S & Nipu K, “Nath Low-power, Folded Cascode Near Rail-to-Rail OTA for Moderate Frequency Signal Processing Innovations in Electronicsâ€, IEEE International Conference on Signal Processing and Communication (IESC), (2017).

      [8] Assaad R & Silva-Martinez J, The recycling folded cascode: a general enhancement of the folded Cascode amplifierâ€, IEEE J Solid-State Circuits, Vol. 44, (2009), pp.25352542.

      [9] Liu A & Yang H, Low voltage low power class-AB OTA with negative resistance loadâ€, IEEE Int. Conf. Commun., Circuits, Syst., Vol. 4, (2006), pp.22512254.

      [10] Perez A, Nithin K, Bonizzoni E & Maloberti F, “Slew-rate and gain enhancement in two stage operational amplifiersâ€, IEEE Int.Symp. Circuits Syst., (2009), pp.24852488.

  • Downloads

  • How to Cite

    Jha, A., & Kumar, M. G. L. (2018). EMG extractor and blink detection for human health monitoring. International Journal of Engineering & Technology, 7(1.1), 706-709. https://doi.org/10.14419/ijet.v7i1.1.12648