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    On-Board Charger (OBC) Evaluation

    March 5, 2025
    An onboard charger is an in-vehicle electrical device that converts alternating current (AC) from a household outlet into direct current (DC) to charge an EV battery pack. In recent years, on-board chargers have become V2H-compatible, which can be used as a power source during disaster situations or in a situation additional power is needed, and there are also modularized types that are integrated with a junction box.

    The on-board charger is required to operate normally even in a situation such undervoltage, voltage distortion, momentary breakdown, momentary low, or voltage fluctuation occurs on the AC side, as well as to supply stable power to the DC side and to be tolerant to voltage and current variations of other in-vehicle electrical components.

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