The power supply system (2) of the electric vehicle comprises a fuel cell (FC),A battery (BAT),A first power conversion element (4),A second power conversion element (6) and a transformer (8). The input of the first conversion element is configured to receive a charging current or output a traction current. The battery is connected to the terminal of the output of the second conversion element. The fuel cell is connected in series with an inductor (LH), which is located at the midpoint (16) between the first and second windings of the transformer.
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