A low EMI SIDO wireless power transfer system with 10μsec response time

Toru Kawajiri, Takahiro Moroto, Hiroki Ishikuro

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

    4 Citations (Scopus)

    Abstract

    This paper describes a system of single-inductor-dual-output (SIDO) wireless power delivery for mobile applications. By updating control signal in the feedback loop by every switching clock cycle, fast tracking to the load change is realized while spurious emission is suppressed by using pseudorandom-sequence PWM (PRS-PWM). Transmitter and receiver chips were fabricated in 0.18μm CMOS process and mounted on the wireless power transfer test board. The system achieved response time shorter than 10μsec. Two output voltages are regulated at 8V and 16V, and maximum efficiency of 41% was achieved when the total output power is 500mW.

    Original languageEnglish
    Title of host publicationEuropean Solid-State Circuits Conference
    PublisherIEEE Computer Society
    Pages253-256
    Number of pages4
    Volume2015-October
    ISBN (Print)9781467374705
    DOIs
    Publication statusPublished - 2015 Oct 30
    Event41st European Solid-State Circuits Conference, ESSCIRC 2015 - Graz, Austria
    Duration: 2015 Sep 142015 Sep 18

    Other

    Other41st European Solid-State Circuits Conference, ESSCIRC 2015
    CountryAustria
    CityGraz
    Period15/9/1415/9/18

    Keywords

    • Pseudo-Random-Sequence PWM (PRS-PWM)
    • single-inductor dual-output (SIDO)
    • wireless power delivery

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Electrical and Electronic Engineering

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  • Cite this

    Kawajiri, T., Moroto, T., & Ishikuro, H. (2015). A low EMI SIDO wireless power transfer system with 10μsec response time. In European Solid-State Circuits Conference (Vol. 2015-October, pp. 253-256). [7313875] IEEE Computer Society. https://doi.org/10.1109/ESSCIRC.2015.7313875