CHARGER, SOFT START METHOD, ELECTRIC VEHICLE, AND CHARGING SYSTEM

    公开(公告)号:EP4299363A1

    公开(公告)日:2024-01-03

    申请号:EP21938454.2

    申请日:2021-04-30

    IPC分类号: B60L53/14 H02J7/00

    摘要: A charger, a soft-start method, an electric vehicle, and a charging system are disclosed. The charger includes a control module, a DC-DC conversion circuit, and a first capacitor. When the electric vehicle is charged, the control module in the charger may first control the DC-DC conversion circuit to charge the first capacitor by using battery electric energy output by a battery system, and after determining that a capacitance voltage of the first capacitor reaches a first threshold voltage, indicate a charging pile to output charging electric energy. A soft-start circuit does not need to be disposed in a soft-start process of the charger, which helps simplify a circuit of the charger and implement a miniaturization design of the charger.

    CHARGING-DISCHARGING CIRCUIT AND SYSTEM, AND ELECTRIC VEHICLE

    公开(公告)号:EP3971018A1

    公开(公告)日:2022-03-23

    申请号:EP20862783.6

    申请日:2020-06-09

    摘要: A charging and discharging circuit and system, and an electric vehicle are provided. The charging and discharging circuit includes a battery (1), a motor (5), a first charging interface (6), a first bridge arm (2), a second bridge arm (3), a third bridge arm (4), a first switch (K1), a second switch (K2), a third switch (K3), a fourth switch (K4), a fifth switch (SI), a sixth switch (S2), a seventh switch (S3), and an eighth switch (S4). In the structure, the charging and discharging circuit can implement a driving mode and a charging mode. Therefore, an unnecessary component in the charging and discharging circuit is omitted, thereby reducing a volume of the charging and discharging circuit.