Future Works

The proposed SIMO converter provides the minimum cross-regulation at multiple buck and boost output terminals and higher power conversion efficiency at light load condition.

The proposed hysteresis mode addresses current accumulation in inductor while the output power of buck output terminals is large than that of boost output terminals. Since those solutions only address the particular issues in the fewer power switches structure. In order to have future works on single inductor structures, there are many challenges on the studies of SIMO converter. Such as that the minimum controlling loops for reducing chip area and power consumption, the fast transient technique for stepping load transition, a new controlling algorithm for adaptive controlling storage charge in the inductor, and the modeling study of SIMO converter.

References

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[21] Ming-Hsin Huang, Hong-Wei Huang, Jiun-Yan Peng, Tzung-Ling Tsai, Min-Chin Lee, Ching-Sung Wang, and Ke-Horng Chen, “Single-Inductor Dual-Output (SIDO) DC-DC Converters for Minimized Cross Regulation and High Efficiency in SoC Supplying Systems,” IEEE Midwest Symposium on Circuits and Systems, Page(s) 550-553. Aug., 2007.

[22] Dongsheng Ma, Wing-Hung Ki, and Chi-Ying Tsui, “A pseudo-CCM/DCM SIMO switching converter with freewheel switching,” IEEE International Solid-State Circuits Conference, Vol. 1, Page(s) 390-476, Feb., 2002.

[23] Trevisan, D., Stefanutti, W., Mattavelli, P., and Tenti, P., “FPGA control of SIMO DC-DC converters using load current estimation,” Annual Conference of IEEE Industrial Electronics Society, Page(s) 2243-2248, Nov., 2005.

[24] Young-Jin Woo, Hanh-Phuc Le, Gyu-Ha Cho, Gyu-Hyeong Cho, and Seong-Il Kim,

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[28] Sreekumar, C. and Agarwal, V., “On the hybrid automaton models and control synthesis of a single inductor, double output boost converter,” CES/IEEE International Power Electronics and Motion Control Conference, Vol. 1, Page(s) 1-5, Aug., 2006.

[29] Kun-Yu Lin, Chun-Shih Huang, Dan Chen, Liu, K.H., “Modeling and design of feedback loops for a voltage-mode single-inductor dual-output buck converter,” IEEE Power Electronics Specialists Conference, Page(s) 3389–3395, June, 2008.

[30] Weiwei Xu, Xiaoting Zhu, Zhiliang Hong, and Killat, Dirk, “Design of single-inductor dual-output switching converters with average current mode control,” IEEE Asia Pacific Conference on Circuits and Systems, Page(s) 902–905, Nov., 2008.

[31] Dongsheng Ma and Wing-Hung Ki, “Fast-Transient PCCM Switching Converter With Freewheel Switching Control,” IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 54, Issue 9, Page(s) 825–829, Sept., 2007.

[32] Sreekumar, C. and Agarwal, V., “Comparison of Mode Switched Controllers for a Pseudo Continuous Current Mode Boost Converter,” International Conference on Power Electronics, Drives and Energy Systems, Page(s) 1–6, Dec., 2006.

[33] Shih-Min Chen, Chun-Yu Hsieh, and Ke-Horng Chen, “Challenge on compact size DC-DC buck converters with high-speed current sensor and on-chip inductors,” IEEE Midwest Symposium on Circuits and Systems, Page(s) 670–673, Aug., 2007.

[34] Sreekumar, C. and Agarwal, V., “A Circuit Theoretical Approach to Hybrid Mode Switching Control of a Pseudo CCM Boost Converter,” IEEE International Conference on Industrial Technology, Page(s) 791–795, Dec., 2006.

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[51] Yat-Hei Lam, Suet-Chui Koon, Wing-Hung Ki, and Chi-Ying Tsui, “Integrated direct output current control switching converter using symmetrically-matched self-biased current sensors,” Asia and South Pacific Conference on Design Automation, Page(s) 102-103, Jan., 2006.

[52] Yat-Hei Lam, Wing-Hung Ki, Chi-Ying Tsui, and Dongsheng Ma, “Integrated 0.9 V charge-control switching converter with self-biased current sensor,” IEEE Midwest Symposium on Circuits and Systems, Vol.2, Page(s) 305-308, July, 2004.

Published Paper

 International Journal Paper

：

 2009

1. (SCI) Ming-Hsin Huang and Ke-Horng Chen, “Single-Inductor Multi-Output (SIMO) DC-DC Converters with High Light-Load Efficiency and Minimized Cross-Regulation for Portable Devices,” IEEE Journal of Solid-State Circuits, Vol. 44, No. 4, Apr., 2009.

2. (SCI) Ming-Hsin Huang, Po-Chin Fan, and Ke-Horng Chen, “Low-Ripple and Dual-Phases Charge Pump Circuit Regulated by Switched-Capacitor Based Bandgap Reference,” IEEE Transactions on Power Electronics, 2009, in press.

 2008

3. (SCI) Ming-Hsin Huang and Ke-Horng Chen, “Single-Inductor Dual-Output (SIDO) DC-DC Converters for Minimized Cross Regulation and High Efficiency in Soc Supplying Systems, ” Journal of Analog Integrated Circuits and Signal Processing, July 2008.

 International Conference Paper

：

 2009

1. Ming-Hsin Huang and Ke-Horng Chen, “Single-Inductor Dual Buck-Boost Output (SIDBBO) Converter with Adaptive Current Control Mode (ACCM) and Adaptive Body Switch (ABS) for Compact Size and Long Battery Life in Portable Devices,”

IEEE Symposium on VLSI Circuits, 2009, in press.

2. Chun-Yu Hsieh, Chih-Yu Yang, Ming-Hsin Huang, Don-Hwan Li, Chi-Lin Chen, and Ke-Horng Chen, “A Charge-Reservoir with Buck-Store and Boost-Restore (BSBR) Technique for High Efficient Conversion and Low Cost Solution of RGB LED Display Panels,” Society for Information Display, 2009, in press.

 2008

3. Ming-Hsin Huang, Ke-Horng Chen, Wei-Hsin Wei, “Single-inductor dual-output DC-DC converters with high light-load efficiency and minimized cross-regulation for portable devices,” IEEE Symposium on VLSI Circuits, Page(s). 132 – 133, June 2008.

 2007

4. Ming-Hsin Huang, Hong-Wei Huang, Jiun-Yan Peng, Tzung-Ling Tsai, Min-Chin Lee, Ching-Sung Wang, and Ke-Horng Chen, “Single-Inductor Dual-Output (SIDO) DC-DC Converters for Minimized Cross Regulation and High Efficiency in SoC Supplying Systems,” IEEE International Midwest Symposium on Circuits & System, Page(s). 550 – 553, Aug. 2007.

 National Journal Paper

：

5. 黃銘信、陳科宏，“應用於可攜式裝置系統中的單電感雙輸出電源轉換器之最

小互穩壓效應與最大輕載效率研製”，電子月刊，163 期，2009 年 2 月。

Vita

Ming-Hsin Huang was born and raised in Kaohsiung,

Taiwan. He received the B.S. degree in the Electronic group of Department of Industrial Education and Technology, the M.S. degree in Department of Electrical Engineering at National Changhua University of Education, and the Ph.D. degree in the Department of Electrical and Control Engineering at National Chiao Tung University, Taiwan, in 2009. His research and specialty interests the power IC field such as compact-size DC-DC converters, charge-pumps, LED drivers, RGB-LEDs backlights, AD-DC switching power supplies and PWM ICs.