Voltage-boosting wireless power delivery system with fast load tracker by ΔΣ-modulated sub-harmonic resonant switching

Ryota Shinoda, Kazutoshi Tomita, Yuya Hasegawa, Hiroki Ishikuro

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

    32 Citations (Scopus)

    Abstract

    Recently, many applications have emerged that use wireless power delivery technology. A new standard "Qi" [1] has been established for battery operated portable devices. The rechargeable battery acts as a power buffer and shields the rapid load variation. Therefore, the requirement of the response to load variation is not so stringent and time constant of the power control loop is longer than several tens of milliseconds. Several hundred kHz band is chosen for switching frequency to reduce the power loss and frequency modulation (FM) [2] or pulse-width modulation (PWM) [3] are used for power control because of their relaxed in-band spurious emission regulation.

    Original languageEnglish
    Title of host publication2012 IEEE International Solid-State Circuits Conference, ISSCC 2012 - Digest of Technical Papers
    Pages288-289
    Number of pages2
    DOIs
    Publication statusPublished - 2012 May 11
    Event59th International Solid-State Circuits Conference, ISSCC 2012 - San Francisco, CA, United States
    Duration: 2012 Feb 192012 Feb 23

    Publication series

    NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
    Volume55
    ISSN (Print)0193-6530

    Other

    Other59th International Solid-State Circuits Conference, ISSCC 2012
    CountryUnited States
    CitySan Francisco, CA
    Period12/2/1912/2/23

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering

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  • Cite this

    Shinoda, R., Tomita, K., Hasegawa, Y., & Ishikuro, H. (2012). Voltage-boosting wireless power delivery system with fast load tracker by ΔΣ-modulated sub-harmonic resonant switching. In 2012 IEEE International Solid-State Circuits Conference, ISSCC 2012 - Digest of Technical Papers (pp. 288-289). [6177018] (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 55). https://doi.org/10.1109/ISSCC.2012.6177018