A high efficiency charge pump with continuous frequency charge sharing scheme

Shuning Wang, Mengshu Huang, Yimeng Zhang, Tsutomu Yoshihara

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

    2 Citations (Scopus)

    Abstract

    In this paper, the charge pump efficiency is discussed, and a charge pump with continuous frequency charge sharing scheme is presented. The proposed charge sharing clock generator is able to recover the charge from parasitic-capacitor charging and discharging, so that the dynamic power loss is reduced by half. Furthermore, the proposed frequency regulation structure is able to keep the efficiency of charge pump at the theoretical maximum value without effect of load current. The simulation results show a maximum 10% efficiency increase and the efficiency is kept around 68% when load current decreases, while efficiency of conventional charge pump drops to 23% when load current is 10uA.

    Original languageEnglish
    Title of host publication2013 IEEE International Conference on Consumer Electronics - China, ICCE-China 2013
    PublisherIEEE Computer Society
    Pages45-50
    Number of pages6
    DOIs
    Publication statusPublished - 2013
    Event2013 IEEE International Conference on Consumer Electronics - China Workshop, ICCE-China 2013 - Shenzhen
    Duration: 2013 Apr 112013 Apr 13

    Other

    Other2013 IEEE International Conference on Consumer Electronics - China Workshop, ICCE-China 2013
    CityShenzhen
    Period13/4/1113/4/13

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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  • Cite this

    Wang, S., Huang, M., Zhang, Y., & Yoshihara, T. (2013). A high efficiency charge pump with continuous frequency charge sharing scheme. In 2013 IEEE International Conference on Consumer Electronics - China, ICCE-China 2013 (pp. 45-50). [6780867] IEEE Computer Society. https://doi.org/10.1109/ICCE-China.2013.6780867