Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Clock Frequency Detector for Improving Certainty of the Embedded System

임베디드 시스템의 정확성 향상을 위한 클럭 주파수 검출기

  • Jeong, Gwanghyeon (The 1st Research and Development Institute, Agency for Defense Development)
  • 정광현 (국방과학연구소 제1기술연구본부)
  • Received : 2020.04.01
  • Accepted : 2020.07.30
  • Published : 2020.10.05
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Abstract

In this paper, the frequency detector which detects the clock frequency of the embedded system is proposed and analyzed. The proposed frequency detector is consisted of filter and peak voltage detector. The clock signal is converted from square wave to triangular wave by the filter. The peak voltage of the triangular wave is determined according to the frequency response of filter. The peak voltage detector detects and holds the peak voltage of the signal. Moreover, the proposed clock frequency detector can detect the frequency within 1ms and it gives guarantee of real-time operation.

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References

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