CCM/GM relative skip energy control and bidirectional dynamic slope compensation in a single-inductor multiple-output DC-DC converter for wearable device power solution

Yi Ping Su; Chiun He Lin; Te Fu Yang; Ru Yu Huang; Wei Chung Chen; Ke-Horng Chen; Chin-Long Wey; Ying Hsi Lin; Chao Cheng Lee; Shian Ru Lin; Tsung Yen Tsai; Somnath Maity

doi:10.1109/TPEL.2015.2490020

CCM/GM relative skip energy control and bidirectional dynamic slope compensation in a single-inductor multiple-output DC-DC converter for wearable device power solution

Yi Ping Su, Chiun He Lin, Te Fu Yang, Ru Yu Huang, Wei Chung Chen, Ke-Horng Chen^*, Chin-Long Wey, Ying Hsi Lin, Chao Cheng Lee, Shian Ru Lin, Tsung Yen Tsai, Somnath Maity

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Compact size wearable devices require multiple supplies with relative large loading difference, which causes serious cross regulation, large ripple, and oscillation in single-inductor multiple-output (SIMO) DC-DC converter. Thus, a continuous conduction mode/green mode (CCM/GM) relative skip energy control (RSEC) in SIMO is proposed for wearable device power solution. Different from the conventional absolute skip method, the RSEC eliminates unnecessary skip-induced voltage ripple and cross regulation with well regulation performance over wide load and voltage ranges. Optimization between efficiency and voltage ripple achieves low noise supply and reduced switching loss. In addition, smooth transition between CCM and GM provides high power and longer usage time in wearable devices. Furthermore, bidirectional dynamic slope compensation conquers subharmonic oscillation and avoids invalid pulses in the energy delivery operation of current-mode SIMO DC-DC converters. The test chip fabricated in the 0.18 μm CMOS process occupies 2.24rm mm² active area. Maximum output ripple, overshoot/undershoot, and cross regulation are kept below 40 mV, 27 mV, and 0.0432 mV/mA, respectively.

Original language	English
Article number	7296678
Pages (from-to)	5871-5884
Number of pages	14
Journal	IEEE Transactions on Power Electronics
Volume	31
Issue number	8
DOIs	https://doi.org/10.1109/TPEL.2015.2490020
State	Published - Aug 2016

Keywords

absolute skip
bidirectional slope compensation
continuous conduction mode (CCM)
green mode (GM)
single-inductor multiple-output (SIMO)
relative skip energy control (RSEC)

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Su, Y. P., Lin, C. H., Yang, T. F., Huang, R. Y., Chen, W. C., Chen, K.-H., Wey, C.-L., Lin, Y. H., Lee, C. C., Lin, S. R., Tsai, T. Y., & Maity, S. (2016). CCM/GM relative skip energy control and bidirectional dynamic slope compensation in a single-inductor multiple-output DC-DC converter for wearable device power solution. IEEE Transactions on Power Electronics, 31(8), 5871-5884. Article 7296678. https://doi.org/10.1109/TPEL.2015.2490020

@article{2f685d9275664d728147f51ba9789b1f,

title = "CCM/GM relative skip energy control and bidirectional dynamic slope compensation in a single-inductor multiple-output DC-DC converter for wearable device power solution",

abstract = "Compact size wearable devices require multiple supplies with relative large loading difference, which causes serious cross regulation, large ripple, and oscillation in single-inductor multiple-output (SIMO) DC-DC converter. Thus, a continuous conduction mode/green mode (CCM/GM) relative skip energy control (RSEC) in SIMO is proposed for wearable device power solution. Different from the conventional absolute skip method, the RSEC eliminates unnecessary skip-induced voltage ripple and cross regulation with well regulation performance over wide load and voltage ranges. Optimization between efficiency and voltage ripple achieves low noise supply and reduced switching loss. In addition, smooth transition between CCM and GM provides high power and longer usage time in wearable devices. Furthermore, bidirectional dynamic slope compensation conquers subharmonic oscillation and avoids invalid pulses in the energy delivery operation of current-mode SIMO DC-DC converters. The test chip fabricated in the 0.18 μm CMOS process occupies 2.24rm mm2 active area. Maximum output ripple, overshoot/undershoot, and cross regulation are kept below 40 mV, 27 mV, and 0.0432 mV/mA, respectively.",

keywords = "absolute skip, bidirectional slope compensation, continuous conduction mode (CCM), green mode (GM), single-inductor multiple-output (SIMO), relative skip energy control (RSEC)",

author = "Su, {Yi Ping} and Lin, {Chiun He} and Yang, {Te Fu} and Huang, {Ru Yu} and Chen, {Wei Chung} and Ke-Horng Chen and Chin-Long Wey and Lin, {Ying Hsi} and Lee, {Chao Cheng} and Lin, {Shian Ru} and Tsai, {Tsung Yen} and Somnath Maity",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.",

year = "2016",

month = aug,

doi = "10.1109/TPEL.2015.2490020",

language = "English",

volume = "31",

pages = "5871--5884",

journal = "IEEE Transactions on Power Electronics",

issn = "0885-8993",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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}

Su, YP, Lin, CH, Yang, TF, Huang, RY, Chen, WC, Chen, K-H, Wey, C-L, Lin, YH, Lee, CC, Lin, SR, Tsai, TY & Maity, S 2016, 'CCM/GM relative skip energy control and bidirectional dynamic slope compensation in a single-inductor multiple-output DC-DC converter for wearable device power solution', IEEE Transactions on Power Electronics, vol. 31, no. 8, 7296678, pp. 5871-5884. https://doi.org/10.1109/TPEL.2015.2490020

CCM/GM relative skip energy control and bidirectional dynamic slope compensation in a single-inductor multiple-output DC-DC converter for wearable device power solution. / Su, Yi Ping; Lin, Chiun He; Yang, Te Fu et al.
In: IEEE Transactions on Power Electronics, Vol. 31, No. 8, 7296678, 08.2016, p. 5871-5884.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - CCM/GM relative skip energy control and bidirectional dynamic slope compensation in a single-inductor multiple-output DC-DC converter for wearable device power solution

AU - Su, Yi Ping

AU - Lin, Chiun He

AU - Yang, Te Fu

AU - Huang, Ru Yu

AU - Chen, Wei Chung

AU - Chen, Ke-Horng

AU - Wey, Chin-Long

AU - Lin, Ying Hsi

AU - Lee, Chao Cheng

AU - Lin, Shian Ru

AU - Tsai, Tsung Yen

AU - Maity, Somnath

PY - 2016/8

Y1 - 2016/8

N2 - Compact size wearable devices require multiple supplies with relative large loading difference, which causes serious cross regulation, large ripple, and oscillation in single-inductor multiple-output (SIMO) DC-DC converter. Thus, a continuous conduction mode/green mode (CCM/GM) relative skip energy control (RSEC) in SIMO is proposed for wearable device power solution. Different from the conventional absolute skip method, the RSEC eliminates unnecessary skip-induced voltage ripple and cross regulation with well regulation performance over wide load and voltage ranges. Optimization between efficiency and voltage ripple achieves low noise supply and reduced switching loss. In addition, smooth transition between CCM and GM provides high power and longer usage time in wearable devices. Furthermore, bidirectional dynamic slope compensation conquers subharmonic oscillation and avoids invalid pulses in the energy delivery operation of current-mode SIMO DC-DC converters. The test chip fabricated in the 0.18 μm CMOS process occupies 2.24rm mm2 active area. Maximum output ripple, overshoot/undershoot, and cross regulation are kept below 40 mV, 27 mV, and 0.0432 mV/mA, respectively.

AB - Compact size wearable devices require multiple supplies with relative large loading difference, which causes serious cross regulation, large ripple, and oscillation in single-inductor multiple-output (SIMO) DC-DC converter. Thus, a continuous conduction mode/green mode (CCM/GM) relative skip energy control (RSEC) in SIMO is proposed for wearable device power solution. Different from the conventional absolute skip method, the RSEC eliminates unnecessary skip-induced voltage ripple and cross regulation with well regulation performance over wide load and voltage ranges. Optimization between efficiency and voltage ripple achieves low noise supply and reduced switching loss. In addition, smooth transition between CCM and GM provides high power and longer usage time in wearable devices. Furthermore, bidirectional dynamic slope compensation conquers subharmonic oscillation and avoids invalid pulses in the energy delivery operation of current-mode SIMO DC-DC converters. The test chip fabricated in the 0.18 μm CMOS process occupies 2.24rm mm2 active area. Maximum output ripple, overshoot/undershoot, and cross regulation are kept below 40 mV, 27 mV, and 0.0432 mV/mA, respectively.

KW - absolute skip

KW - bidirectional slope compensation

KW - continuous conduction mode (CCM)

KW - green mode (GM)

KW - single-inductor multiple-output (SIMO)

KW - relative skip energy control (RSEC)

UR - http://www.scopus.com/inward/record.url?scp=84963935815&partnerID=8YFLogxK

U2 - 10.1109/TPEL.2015.2490020

DO - 10.1109/TPEL.2015.2490020

M3 - Article

AN - SCOPUS:84963935815

SN - 0885-8993

VL - 31

SP - 5871

EP - 5884

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 8

M1 - 7296678

ER -

CCM/GM relative skip energy control and bidirectional dynamic slope compensation in a single-inductor multiple-output DC-DC converter for wearable device power solution

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Keywords

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