Isolated dc-dc power converter with adjustable turns ratio

Bin Zhao (Inventor), Ziwei Ouyang (Inventor), Michael Andreas Esbern Andersen (Inventor)

    Research output: Patent

    10 Downloads (Pure)


    A first aspect of the invention relates to an isolated DC-DC power converter which comprises at least one transformer which comprises a primary side winding and a secondary side winding wound on a common magnetic core. The isolated DC-DC power converter comprising a plurality of stages, each stage comprising a controllable switch and a winding inductor. The winding inductors of each two adjacent stages are connected via a controllable coupling switch so as to serially connect or disconnect these winding inductors to form the primary side winding with an adjustable number of turns. The isolated DC-DC power converter comprises a shared active clamp circuit for the controllable switches.

    Original languageEnglish
    IPCH02M 1/ 34 A N
    Patent numberWO2020104597
    Filing date21/11/2019
    Country/TerritoryInternational Bureau of the World Intellectual Property Organization (WIPO)
    Priority date22/11/2018
    Priority numberEP20180207859
    Publication statusPublished - 28 May 2020


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