Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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A Design of Interleaved DC-DC Buck-boost Converter with Improved Conduction Loss of Switch

스위치 전도 손실을 개선한 인터리브 DC-DC 벅-부스트 컨버터 설계

  • Lee, Joo-Young (Department of Electronics Engineering, Seokyeung University) ;
  • Joo, Hwan-Kyu (Electronics and Electrical Engineering, Dankook University) ;
  • Lee, Hyun-Duck (Department of Electronics Engineering, Seokyeung University) ;
  • Yang, Yil-Suk (Electronics and Telecommunic ations Research Institute) ;
  • Koo, Yong-Seo (Electronics and Electrical Engineering, Dankook University)
  • Received : 2010.09.03
  • Accepted : 2010.09.29
  • Published : 2010.09.30
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Abstract

The interleaved power management IC(PMIC) with DTMOS(Dynamic Threshold voltage MOSFET) switching device is proposed in this paper. The buck-boost converter used to provide the high output voltage and low output voltage for portable applications. Also we used the PWM(Pulse Width Modulation) control method for high power efficiency at high current level. DTMOS with low on-resistance is designed to decrease conduction loss. The interleaved PMIC to reduce output ripple. And step-down DC-DC converter in stand-by mode below 1mA is designed with LDO in order to achive high efficiency.

본 논문에서는 DTMOS(Dynamic Threshold voltage MOSFET) 스위칭 소자를 사용한 인터리브 방식의 전원제어 장치(PMIC)를 제안하였다. 휴대기기에 필요한 높은 출력 전압과 낮은 출력 전압을 제공하기 위하여 벅-부스트 컨버터를 사용하였다. 또한, 높은 출력 전류에서 고 전력 효율을 얻기 위하여 PWM(Pulse Width Modulation) 제어 방식을 사용하였다. 낮은 온-저항을 갖는 DTMOS를 사용하여 도통 손실을 감소시켰으며 인터리브 방식을 사용하여 출력 리플을 감소시켰다. 1mA 이하의 대기모드에서도 높은 효율을 구현하기 위하여 LDO를 설계하였다.

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References

  1. 김희준, "스위치 모드 파워 서플라이" 성인당, 1993
  2. Sanjaya Maniktala, Switching Power Supplies A to Z Newnes, Burlington, 2006.
  3. Chris Toumazou, "Trade-Offs in analog Circuit Design" Kluwer Academic Publishers, 2002
  4. Fariborz Assaderaghi, "A Dynamic Threshold Voltage MOSFET for Ultra Low Voltage Operation", IEEE Electron Devices Meeting, 1994
  5. K. Mark Smith, Jr., "A Comparison of Voltage-Mode Soft-Switching Methods for PWM Converters" IEEE Trans-Power Electronic, Vol. 12, No. 2, 1997
  6. A. Djemouai,, M. Sawan, M. Slamani, "New CMOS Integrated Pulse Width Modulator for Voltage Conversion Applications", IEEE, ICECS, vol. 1, 2000
  7. Lu Chen,, "Design and Test of a Synchronous PWM Switching Regulator System", IEEE, APCCAS, 2000
  8. Siamak Abedinpour, Bertan Bakkaloglu, and Sayfe Kiaei, "A Multistage Interleaved Synchronous Buck Converter With Intergrated Output Filter in 0.18um SiGe Process", IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol. 22, No.6, November 2007.