Electric vehicle (EV) on-board chargers (OBCs) should have high efficiency and high power density. Since the transformers in isolated OBCs generally lower both of these metrics, this paper proposes a novel non-isolated OBC with very high efficiency and a low component count. Active filtering is proposed to allow the use of smaller dc-link film capacitors to further improve power density. This paper discusses the design process for the dc-link capacitors and the operation of the active filtering control. Simulation results show that for level 2 charging, the proposed converter has a peak efficiency of 98.8% and efficiency of 98.6% at full 3.3 kW load. Furthermore, the simulation results confirm acceptable THD and power factor performance of the proposed topology.


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    Title :

    High Efficiency GaN-based Non-isolated Electric Vehicle On-board Charger with Active Filtering


    Contributors:


    Publication date :

    2022-06-15


    Size :

    2237289 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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