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A 400-mA current-mode buck converter with a self-trimming current sensing scheme
- Ahn, Youngkook;
- Heo, Donghun;
- Nam, Hyunseok;
- Roh, Jeongjin
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3초록
A current-programmed mode (CPM) controller is designed for improved DC-DC converter control. The key building block of the CPM controller is an accurate current-sensing circuit. This paper proposes a lossless current-sensing technique to measure the inductor current by measuring the current through the power transistor. A self-trimming circuit is used to compensate for any inaccuracies caused by voltage and temperature variations. The measurement results validate the operation of the fabricated chip.
키워드
DC-DC converter; Power management IC; Buck converter; Current-sensing; Analog circuit; DC-DC CONVERTER
- 제목
- A 400-mA current-mode buck converter with a self-trimming current sensing scheme
- 저자
- Ahn, Youngkook; Heo, Donghun; Nam, Hyunseok; Roh, Jeongjin
- 발행일
- 2011-02
- 유형
- Article
- 권
- 66
- 호
- 2
- 페이지
- 163 ~ 170
- 언어
- ENG
- 출판사
- SPRINGER
- 발행국가
- 네덜란드
- 분량
- 8 페이지
- ISSN
- E 1573-1979
P 0925-1030