Dynamic period switching of PRS-PWM with run-length limiting technique for spurious and ripple reduction in fast response wireless power transmission

Takahiro Moroto, Toru Kawajiri, Hiroki Ishikuro

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    Abstract

    In this paper, we propose a control method in a wireless power transmission that targets small battery-less devices. Dynamic period switching of PRS-PWM (Pseudo Random Sequence - Pulse Width Modulation) with run length limiting technique has been developed to break through the tradeoff between transient response speed, rectified voltage ripple, and spurious emission. Developed wireless power transmission system has achieved ripple reduction by 44%, response speed of 70μs, and spurious reduction by 15.6dB.

    Original languageEnglish
    Title of host publication2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1802-1806
    Number of pages5
    Volume2016-May
    ISBN (Electronic)9781467383936
    DOIs
    Publication statusPublished - 2016 May 10
    Event31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016 - Long Beach, United States
    Duration: 2016 Mar 20 → 2016 Mar 24

    Other

    Other31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016
    CountryUnited States
    CityLong Beach
    Period16/3/20 → 16/3/24

    Keywords

    • fast response
    • PRS-PWM
    • spurious
    • Wireless power transfer

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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