대한전자공학회논문지SD (Journal of the Institute of Electronics Engineers of Korea SD)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

휴대용 멀티미디어 기기를 위한 400mA급 전류 방식 DC-DC 컨버터

400mA Current-Mode DC-DC Converter for Mobile Multimedia Application

  • 허동훈 (한양대학교 전자컴퓨터공학) ;
  • 남현석 (한양대학교 전자컴퓨터공학) ;
  • 이민우 (한양대학교 전자컴퓨터공학) ;
  • 안영국 (한양대학교 전자컴퓨터공학) ;
  • 노정진 (한양대학교 전자컴퓨터공학)
  • Heo, Dong-Hun (Dep. of Electronic, Electrical, Control and Instrumentation Engineering, Hanyang Univ.) ;
  • Nam, Hyun-Seok (Dep. of Electronic, Electrical, Control and Instrumentation Engineering, Hanyang Univ.) ;
  • Lee, Min-Woo (Dep. of Electronic, Electrical, Control and Instrumentation Engineering, Hanyang Univ.) ;
  • Ahn, Young-Kook (Dep. of Electronic, Electrical, Control and Instrumentation Engineering, Hanyang Univ.) ;
  • Roh, Jeong-Jin (Dep. of Electronic, Electrical, Control and Instrumentation Engineering, Hanyang Univ.)
  • 발행 : 2008.08.25
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초록

최근 휴대용 멀티미디어 기기에 있어서 파워 컨버터 블록이 매우 중요한 블록으로 부각되고 있다. 본 논문에서는 휴대 기기를 위한 고성능 DC-DC buck 컨버터를 설계하였다. DC-DC buck 컨버터의 컨트롤러에는 전류를 이용한 컨트롤 방법을 사용하였다. 설계된 전류 방식 DC-DC buck 컨버터는 standard $0.18{\mu}m$ 공정을 통하여 칩으로 제작 되었고, 전체 칩의 크기는 $1.2mm^2$이다. 제작된 칩은 $1\sim1.5MHz$의 주파수에서 동작 하였고, 최대 400mA의 부하 전류를 구동할 수 있다. 또한 컨버터의 최대 변환 효율은 86%이다.

Power converters are becoming an essential block in modem mobile multimedia application. This paper presents a high performance DC-DC buck converter for mobile applications. Controller of DC-DC buck converter is designed by current-mode control method. An current-mode DC-DC converter is implemented in a standard $0.18{\mu}m$ CMOS process, and the overall die size was $1.2mm^2$. The peak efficiency was 86 % with a switching frequency of $1\sim1.5MHz$ and a maximum load current of 400mA.

키워드

참고문헌

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