Equivalent Circuits

  • Tony Gray


A touch sensor node can be modeled as a 3 × 3 grid of columns and rows. An equivalent circuit model of the various capacitances and resistances is created and analyzed. The model is then modified when a finger is present and analyzed again. The analysis shows that adding a finger substantially complicates the equivalent circuit and its transfer function.

Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • Tony Gray
    • 1
  1. 1.PlanoUSA

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