1W 3.3V-to-16.3V boosting wireless power transfer circuits with vector summing power controller

Kazutoshi Tomita, Ryota Shinoda, Tadahiro Kuroda, Hiroki Ishikuro

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

    8 Citations (Scopus)

    Abstract

    This paper presents SD card size wireless power transfer system for large volume contactless memory cards. Voltage is boosted simultaneously with power transfer, which eliminates the DC-DC converter or charge-pump circuit for data write operation into the flash memory chip. The proposed approach reduces the number of components and BOM cost and improve the total power efficiency. Vector summing technique is proposed to control the transmitting power and secondary side voltage. The transmitter and rectifier have been designed and fabricated using 0.18um-CMOS with high voltage option. Voltage boost from 3.3V to 16.3V and 1W power transfer with 50% total efficiency have been successfully demonstrated.

    Original languageEnglish
    Title of host publication2011 Proceedings of Technical Papers
    Subtitle of host publicationIEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011
    Pages177-180
    Number of pages4
    DOIs
    Publication statusPublished - 2011 Dec 1
    Event7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011 - Jeju, Korea, Republic of
    Duration: 2011 Nov 142011 Nov 16

    Publication series

    Name2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011

    Other

    Other7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011
    CountryKorea, Republic of
    CityJeju
    Period11/11/1411/11/16

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Electrical and Electronic Engineering

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