In this study, a novel common mode multi-phase half-wave semi-synchronous rectifier is investigated for applications in wireless energy transfer. The circuit is intended to alleviate variations of the load resistance or coupling coefficient factor while maintaining high efficiency. The proposed rectifier structure is based on the connection of semi-controlled multiple half-wave rectifier topology through multiple inductors. The receiver side semi-synchronous switches are controlled to increase the system efficiency by a symmetrical phase-shifted PWM signals in response to load variations. A 700 W laboratory prototype system is designed to validate the proposed topology in terms of current, power, and efficiency. Experimental results are provided for various loads using 8 inches air gap coreless transformer, which has dimension 2.5 by 2.5 feet, with a 120 V input and a maximum efficiency of 94.8 %.


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    Title :

    A novel common mode multi-phase half-wave semi-synchronous rectifier for inductive power transfer applications


    Contributors:


    Publication date :

    2015-06-01


    Size :

    2023421 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Synchronous Half-Wave Rectifier

    Rippel, Wally E. | NTRS | 1989





    INDUCTIVE POWER TRANSFER WITH INDUCTIVE POWER TRANSFER PAD

    WECHSLER SIMON / GUNT ROMAN | European Patent Office | 2015

    Free access