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

The Institute of Electronics and Information Engineers (대한전자공학회)
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Single-Inductor Multiple-Output DC-DC Converter with Negative Feedback Selection Circuit

부궤환 선택회로를 갖는 단일 인덕터 다중 출력 직류-직류 변환기

  • Gong, Jung-Chul (Dep. of electronics & computer engineering, Hanyang Univ.) ;
  • Roh, Yong-Seong (Dep. of electronics & computer engineering, Hanyang Univ.) ;
  • Moon, Young-Jin (Dep. of electronics & computer engineering, Hanyang Univ.) ;
  • Choi, Woo-Seok (Dep. of electronics & computer engineering, Hanyang Univ.) ;
  • Yoo, Chang-Sik (Dep. of electronics & computer engineering, Hanyang Univ.)
  • 공정철 (한양대학교 전자통신컴퓨터공학과) ;
  • 노용성 (한양대학교 전자통신컴퓨터공학과) ;
  • 문영진 (한양대학교 전자통신컴퓨터공학과) ;
  • 최우석 (한양대학교 전자통신컴퓨터공학과) ;
  • 유창식 (한양대학교 전자통신컴퓨터공학과)
  • Received : 2010.10.09
  • Published : 2011.12.25
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Abstract

This paper presents a Single-Inductor Multiple-Output (SIMO) DC-DC Converter with a negative feedback selection circuit to improve a regulation property at light load and to generate independent multiple outputs. The conventional SIMO DC-DC converter with a fixed negative feedback circuit cannot regulate correctly at light load. The SIMO DC-DC converter with the proposed negative feedback selection circuit has been designed in 0.35um 2-poly 3-metal BCDMOS. This converter is dual output boost converter with the 1.5V input and 2.5V, 3.0V output. The power conversion efficiency varies from 59% at 10mA loads to 85% at 50mA loads.

본 논문은 경부하에서 전압 안정화 특성을 향상 시키고 독립적인 다중 출력을 생성 시키기 위해 부궤환 선택 회로를 갖는 단일 인덕터 다중 출력(SIMO) 직류-직류 변환기를 설계하였다. 일반적으로 기존의 SIMO 직류-직류 변환기는 고정된 부궤환 루프를 가지고 있어 경부하에서 정확한 출력을 생성 할 수 없다. 제안하는 부궤환 선택회로를 갖는 SIMO 직류-직류 변환기는 0.35um 2-poly 3-metal BCDMOS를 이용하여 설계 하였다. 이변환기는 1.5V 입력과 2.5V, 3.0V의 2중 출력을 가지고 있다. 최대 전력변환효율은 부하가 10mA이때 59%에서 50mA일 때 85%를 가지고 있다.

Keywords

References

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