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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.19 No.4
- 발행연도
- 2019.8
- 수록면
- 321 - 326 (6page)
- DOI
- 10.5573/JSTS.2019.19.4.321
이용수
초록· 키워드
오류제보하기
Emerging wireless microsystems rely on tiny batteries and intermittent energy-harvesting sources for energy and power. To sense, process, and report numerous events across extended periods, they often idle and wake to full-power conditions. Their power supplies must therefore be compact and efficient and respond quickly to sudden wide load changes. Hysteretic current-mode switched-inductor dc–dc converters are good for this application space because they are compact, efficient, and fast. Although also widely stable, they are nevertheless subject to instabilities. This paper explains how input and output voltages and load dumps limit stability, and as a result, bandwidth and response time. Measurements of a 200-mA, 1-V, 0.18-μm CMOS hysteretic current-mode buck with 95% peak powerconversion efficiency show how increasing the loaddump step by 140 mA and decreasing the input voltage by 400 mV compromise stability.
목차
Abstract
Ⅰ. POWERING WIRELESS MICROSYSTEMS
Ⅱ. HYSTERETIC CURRENT-MODE CONVERTER
Ⅲ. STABILITY
Ⅳ. PROTOTYPE
Ⅴ. CONCLUSIONS
REFERENCES
참고문헌 (17)
참고문헌 신청
D. Puccinelli and M. Haenggi, “Wireless Sensor Networks Applications and Challenges of Ubiquitous Sensing,” IEEE Circuits and Systems Magazine, vol. 5, no. 3, pp. 19?31, 2005.
C.O. Mathuna, W. Ningning, S. Kulkarni, and S. Roy, “Review of Integrated Magnetics for Power Supply on Chip (PwrSoC),” IEEE Transactions on Power Electronics, vol. 27, no. 11, pp. 4799?4816, Nov. 2012.
C. Hwan and S. Byun, “A 82.5% Power Efficiency at 1.2 mW Buck Converter with Sleep Control,” Jounral of Semiconductor Technology and Science, vol. 16, no. 6, pp. 842?846, 2016.
K.H. Kim and B.S. Kong, “Ultra-fast Adaptive Frequency-controlled Hysteretic Buck Converter for Portable Devices,” Jounral of Semiconductor Technology and Science, vol. 16, no. 5, pp. 615? 623, 2005.
X. Duan, and A. Q. Huang, “Current-Mode Variable-Frequency Control Architecture for High- Current Low-Voltage DC?DC Converters,” IEEE Transactions on Power Electronics, vol. 21, no. 4, pp. 1133?1137, Jul. 2006.
C.O. Mathuna, W. Ningning, S. Kulkarni, and S. Roy, “Review of Integrated Magnetics for Power Supply on Chip (PwrSoC),” IEEE Transactions on Power Electronics, vol. 27, no. 11, pp. 4799?4816, Nov. 2012.
C. Hwan and S. Byun, “A 82.5% Power Efficiency at 1.2 mW Buck Converter with Sleep Control,” Jounral of Semiconductor Technology and Science, vol. 16, no. 6, pp. 842?846, 2016.
K.H. Kim and B.S. Kong, “Ultra-fast Adaptive Frequency-controlled Hysteretic Buck Converter for Portable Devices,” Jounral of Semiconductor Technology and Science, vol. 16, no. 5, pp. 615? 623, 2005.
X. Duan, and A. Q. Huang, “Current-Mode Variable-Frequency Control Architecture for High- Current Low-Voltage DC?DC Converters,” IEEE Transactions on Power Electronics, vol. 21, no. 4, pp. 1133?1137, Jul. 2006.
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