A high efficiency single-stage isolated ac-dc converter topology is proposed in this paper. The proposed converter provides soft-switching, power factor correction (PFC), and output voltage regulation over a wide operating range in a single power conversion stage. The converter structure includes an integrated flyback snubber circuit to address the device overvoltage issues commonly observed in the isolated singlestage ac-dc PFC converters. This flyback circuit regenerates the snubber capacitor energy, thus helps in extending the converter’s overall efficiency. This paper also discusses a design guideline for the proposed converter. The converter performance is evaluated in a SiC MOSFET based 1.5 kW prototype.


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    Titel :

    High Efficiency High-frequency-link Single-stage AC-DC Converter


    Beteiligte:


    Erscheinungsdatum :

    21.01.2021


    Format / Umfang :

    364786 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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