대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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94%효율을 가진 PFM/PWM 자동변환 전류-모드 DC-DC Boost 변환기

A 94% Efficiency Current-mode DC-DC boost converter with automatic PFM/PWM conversion

  • 정봉용 (한양대학교 전자전기제어계측공학과) ;
  • 남현석 (한양대학교 전자전기제어계측공학과) ;
  • 노정진 (한양대학교 전자전기제어계측공학과)
  • Jeong, Bong-Yong (School of Electrical and Computer Engineering Hanyang University) ;
  • Nam, Hyun-Seok (School of Electrical and Computer Engineering Hanyang University) ;
  • Roh, Jeong-Jin (School of Electrical and Computer Engineering Hanyang University)
  • 발행 : 2008.06.18
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초록

This paper presents a high performance DC-DC boost converter by current-mode control method. As load current change, the converter change PWM/PFM operation automatically. current-mode DC-DC boost converter is implemented in a standard $0.35{\mu}m$ CMOS process. The peak efficiency was 94 % with a switching frequency of 1.2MHz.

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