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A Study on Enhancement of DAC Resolution using Three States of Micro-controller Port

  • Journal of Software Assessment and Valuation
  • Abbr : JSAV
  • 2023, 19(3), pp.71-78
  • DOI : 10.29056/jsav.2023.09.08
  • Publisher : Korea Software Assessment and Valuation Society
  • Research Area : Engineering > Computer Science
  • Received : July 31, 2023
  • Accepted : September 20, 2023
  • Published : September 30, 2023

Lee HyunChang 1

1공주대학교

Accredited

ABSTRACT

In this paper, a method for improving the resolution of digital-to-analog conversion with the minimum number of ports using the three-state characteristics of micro-controller ports is presented. To verify the validity of the proposed method, a digital-to-analog conversion circuit consisting of two-state digital that is currently being used was analyzed and compared with the proposed three-state method. In order to prove the effectiveness of the proposed method, an experimental circuit was constructed and an experiment was conducted. As a result of the experiment, it was confirmed that the resolution increased by 225% from step 4 to step 9 when using 2 bits compared to the existing two-state method, and increased by 338% from step 8 to step 27 when using 3 bits.

Citation status

* References for papers published after 2023 are currently being built.