The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Time-Domain Read-Out Circuit for Inductive Sensor Applications

인덕티브 센서 응용을 위한 시간 영역 리드아웃 회로

  • 오종엽 (한국공학대학교 나노반도체공학과) ;
  • 조성훈 (한국공학대학교 나노반도체공학과)
  • Received : 2023.06.27
  • Accepted : 2023.08.17
  • Published : 2023.08.31
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Abstract

This paper propose a circuit that can measure the inductance of an inductive sensor used in IOT applications. The circuit was constructed using the characteristics of an RL low-pass filter circuit, comparator, current control switch, and capacitor, and the inductance value within the range 1[nH] < L ≤ 1[H] can be derived through the duration time during the output voltage of the RL low-pass filter circuit is greater than the reference voltage.

본 논문에서는 IoT 응용에서 사용되는 인덕티브한 센서의 인덕턴스를 측정할 수 있는 회로를 제안하였다. RL 저역 통과 필터 회로, 비교기, 전류 제어 스위치, 커패시터의 특성을 이용하여 회로를 구성하였으며, RL 저역 통과 필터 회로의 출력 전압이 기준 전압보다 큰 duration time을 통해 1nH-1H 범위 내의 인덕턴스 값을 도출 할 수 있다.

Keywords

Acknowledgement

This research was supported by Research Program to Solve Regional Convergence Issues through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT (No. RS-2023-00259928). The EDA Tool was supported by the IC Design Education Center, Korea.

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