A 12-W 96.1%-Efficiency eFuse-Based Ultrafast Battery Charger Supporting Wireless and USB Power Inputs

Yong Qu, Wei Shu, Yen Cheng Kuan, Shiuh Hua Wood Chiang, Yue Li, Zixian Zheng, Joseph S. Chang

    研究成果: Conference contribution同行評審

    摘要

    Portable devices (e.g. smartphones) are typically equipped with Lithium (Li)-ion batteries and in-situ chargers [1],[2]. Due to the increasing demand for fast charging, the battery charger requirements are becoming stringent, demanding smooth mode transition, high power-efficiency, large output power, and small form-factor. In comparison with linear or switched capacitor topologies, an inductor-based switching charger [3],[4]-the interest of this paper-is highly desirable to offer a wide input voltage range and a flexible output current [5],[6]. However, present-art switching charger designs [3]-[6] suffer from the difficulty to meet these requirements because of their potential issues, including instability at mode transitions, excessive hard-switching power loss, single-input power rail limitation, and bulky output inductor.

    原文English
    主出版物標題2021 IEEE Custom Integrated Circuits Conference, CICC 2021 - Proceedings
    發行者Institute of Electrical and Electronics Engineers Inc.
    ISBN(電子)9781728175812
    DOIs
    出版狀態Published - 四月 2021
    事件2021 IEEE Custom Integrated Circuits Conference, CICC 2021 - Virtual, Austin, United States
    持續時間: 25 四月 202130 四月 2021

    出版系列

    名字Proceedings of the Custom Integrated Circuits Conference
    2021-April
    ISSN(列印)0886-5930

    Conference

    Conference2021 IEEE Custom Integrated Circuits Conference, CICC 2021
    國家/地區United States
    城市Virtual, Austin
    期間25/04/2130/04/21

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