대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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온칩 DC-DC 변환기를 위한 전류 비교 방식의 센서

A Sensing Scheme Utilizing Current-Mode Comparison for On-Chip DC-DC Converter

  • 김형일 (국민대학교 전자정보통신대학 전자공학과) ;
  • 송하선 (국민대학교 전자정보통신대학 전자공학과) ;
  • 김범수 (국민대학교 전자정보통신대학 전자공학과) ;
  • 김대정 (국민대학교 전자정보통신대학 전자공학과)
  • Kim, Hyun-Gil (Integrated Circuit Design Laboratory School of Electrical Engineering, Kookmin University) ;
  • Song, Ha-Sun (Integrated Circuit Design Laboratory School of Electrical Engineering, Kookmin University) ;
  • Kim, Bum-Soo (Integrated Circuit Design Laboratory School of Electrical Engineering, Kookmin University) ;
  • Kim, Dae-Jeong (Integrated Circuit Design Laboratory School of Electrical Engineering, Kookmin University)
  • 발행 : 2006.06.21
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초록

An efficient sensing scheme adoptable in DC-DC converter is described. The output voltage of the whole DC-DC converter is fed back to the input voltage of the sensor. The comparison in the sensor is accomplished by a current push-pull action. With a fixed reference, the comparator can be embodied based on (W/L) ratios. The current-mode scheme benefits the system better than a conventional voltage-mode one in terms of small area, low power consumption.

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