Journal of Korea Society of Industrial Information Systems (한국산업정보학회논문지)

Korea Society of Industrial Information Systems (한국산업정보학회)
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Design of a DC-DC Converter for Portable Device

휴대기기용 DC-DC 부스트 컨버터 집적회로설계

  • 이자경 (인제대학교 대학원 나노융합공학과) ;
  • 송한정 (인제대학교 나노융합공학과, 나노메뉴팩처링연구소)
  • Received : 2016.06.03
  • Accepted : 2017.03.28
  • Published : 2017.04.30
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Abstract

In This Paper, A DC-DC Boost Converter for Portable Device has been Proposed. The Converter Which is Operated with 1 MHz High Switching Frequency is Capable of Reducing Mounting Area of Passive Devices Such as Inductor and Capacitor, Consequently is Suitable for Portable Device. This Boost Converter Consists of a Power Stage and a Control Block and a Protect Block. Proposed DC-DC Boost Converter has been Designed a 0.18 um Magnachip CMOS Process Technology, we Examined Performances of the Fabricated Chip and Compared its Measured Results with SPICE Simulation Data. Simulation Results Show that the Output Voltage is 4.8 V in 3.3 V Input Voltage, Output Current 95 mA Which is Larger than 20~50 mA.

본 논문에서는 휴대기기용 DC-DC 부스트 컨버터를 설계하였다. 제안하는 DC-DC 부스트 컨버터는 1MHz의 스위칭 주파수로 구동되며, 인덕터, 출력 커패시터, MOS 트랜지스터 등으로 이루어지는 파워단 부분과 보호회로단, 컨트롤블럭단으로 구성하였다. CMOS magnachip $0.18{\mu}m$ 공정을 이용하여 SPICE 모의실험을 통하여 동작을 확인하였고, 칩을 제작하여 모의실험결과와 비교 분석하였다. 설계된 컨버터는 3.3 V 입력 전압 조건에서 출력전압 4.8 V 가 나타났고, 출력전류 95 mA 로 기존의 25~50 mA보다 큰 출력을 얻었다.

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References

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