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High-efficiency synchronous dual-output switched-capacitor dc-dc converter with digital state machine control

Published: 27 August 2007 Publication History

Abstract

An integrated high-efficiency dual-output switched-capacitor (SC) DC-DC converter was presented. The converter is capable of synchronously providing a buck output voltage channel and a boost channel with shared three fly capacitors and a switch-array. Fully digital state machine controller and gain-hopping regulation technique endued the converter with high power efficiency, fast transient response and system steadiness. The converter was designed and simulated in TSMC 0.35μm CMOS process, and Spectre simulation showed that the converter can generate steady output voltages of 5V and 1.8V with maximum efficiency up to 90%, and result in 10% higher efficiency than conventional fixed gain regulation.

References

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Dongsheng Ma, "Robust Multiple-Phase Switched-Capacitor DC-DC Converter With Digital Interleaving Regulation Scheme". 2006 IEEE/ACM International Symposium on Low Power Electronics (ISLPED), German 2006, pp.400--405.
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Cited By

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  • (2018)Dual-output switched-capacitor DC---DC converter with pseudo-three-phase swap-and-cross control and amplitude modulation mechanismAnalog Integrated Circuits and Signal Processing10.1007/s10470-018-1147-z95:3(523-540)Online publication date: 1-Jun-2018
  • (2016)A 90 % efficiency, 250 MHz on-chip adaptive switched capacitor based DC---DC converterAnalog Integrated Circuits and Signal Processing10.1007/s10470-016-0844-889:2(451-460)Online publication date: 1-Nov-2016
  • (2014)A reconfigurable buck-boost switched capacitor converter architecture for multiple, distributed on-chip load applications2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)10.1109/NEWCAS.2014.6934083(464-467)Online publication date: Jun-2014
  • Show More Cited By

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    cover image ACM Conferences
    ISLPED '07: Proceedings of the 2007 international symposium on Low power electronics and design
    August 2007
    432 pages
    ISBN:9781595937094
    DOI:10.1145/1283780
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 27 August 2007

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    Author Tags

    1. dual-output
    2. gain-hopping
    3. multiple gain pair conversion
    4. state machine
    5. switched-capacitor DC-DC converter

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    View all
    • (2018)Dual-output switched-capacitor DC---DC converter with pseudo-three-phase swap-and-cross control and amplitude modulation mechanismAnalog Integrated Circuits and Signal Processing10.1007/s10470-018-1147-z95:3(523-540)Online publication date: 1-Jun-2018
    • (2016)A 90 % efficiency, 250 MHz on-chip adaptive switched capacitor based DC---DC converterAnalog Integrated Circuits and Signal Processing10.1007/s10470-016-0844-889:2(451-460)Online publication date: 1-Nov-2016
    • (2014)A reconfigurable buck-boost switched capacitor converter architecture for multiple, distributed on-chip load applications2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)10.1109/NEWCAS.2014.6934083(464-467)Online publication date: Jun-2014
    • (2009)High-voltage DC/DC converter for high-efficiency power recovery in implantable devices2009 International Conference on Microelectronics - ICM10.1109/ICM.2009.5418643(22-25)Online publication date: Dec-2009

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