A differential capacitance deviation-to-time converter for triaxial position sensor

3축 위치 센서를 위한 차동 용량차-시간 변환기

  • Won, Chang-Su (Department of Semiconductor Engineering, Chongju University) ;
  • Chung, Won-Sup (Department of Semiconductor Engineering, Chongju University) ;
  • Son, Sang-Hee (Department of Semiconductor Engineering, Chongju University)
  • 원창수 (청주대학교 전자정보공학부) ;
  • 정원섭 (청주대학교 전자정보공학부) ;
  • 손상희 (청주대학교 전자정보공학부)
  • Published : 2008.10.31

Abstract

A differential capacitance deviation-to-time converter for interfacing position sensor is presented. It consists of triaxial position sensor, six comparators, six current mirrors, and control logic. The prototype differential capacitance deviation-to-time interval converter has been simulated using Chartered $0.35-{\mu}m$ CMOS parameters. The simulation results show that the maximum conversion time of the converter is $350{\mu}s$ and the linearity error is less than ${\pm}0.00l5%$.

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