Double charge pump circuit with triple charge sharing clock scheme

Mengshu Huang, Yimeng Zhang, Hao Zhang, Tsutomu Yoshihara

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    4 Citations (Scopus)

    Abstract

    A double charge pump circuit with triple charge sharing clock scheme is described. The proposed charge sharing clock generator is able to recover nearly two-thirds of the charge from the parasitics charging, in which way the dynamic power loss in the pumping process is reduced to almost one-third. To preserve the overlapping period of the four-phase clock used for threshold cancellation technique, two complementary sets of clocks are generated from the proposed clock generator, and each set feeds a certain branch of the double charge pump to achieve a between-branch charge sharing. Under 0.18μm technology with a bottom plate parasitic ratio of 0.2, the simulation results of a proposed 5-stage charge pump circuit show an overall efficiency increase with a peak value of 62.8% comparing to 46.8% of a conventional one, and the output ripple voltage is reduced by nearly a half.

    Original languageEnglish
    Title of host publicationProceedings of International Conference on ASIC
    Pages128-132
    Number of pages5
    DOIs
    Publication statusPublished - 2011
    Event2011 IEEE 9th International Conference on ASIC, ASICON 2011 - Xiamen
    Duration: 2011 Oct 252011 Oct 28

    Other

    Other2011 IEEE 9th International Conference on ASIC, ASICON 2011
    CityXiamen
    Period11/10/2511/10/28

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Electrical and Electronic Engineering

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