The invention discloses a vehicle-mounted charger circuit, a vehicle-mounted charger and an electric vehicle. The vehicle-mounted charger circuit comprises an alternating-current interface, an alternating-current/direct-current conversion circuit, a post-stage buck-boost circuit and a power battery, wherein the alternating-current interface is connected with the power battery through the alternating-current/direct-current conversion circuit and the post-stage buck-boost circuit in sequence; when the alternating-current interface is connected with a power grid and the power grid charges the power battery, current output from the power grid is input into the post-stage buck-boost circuit through the alternating-current/direct-current conversion circuit and input into the power battery through the post-stage buck-boost circuit; when the alternating-current interface is connected with a power grid or a load and the power battery discharges to the power grid or the load, current output fromthe power battery is input into the power grid or the load through the alternating-current/direct-current conversion circuit. The vehicle-mounted charger circuit can achieve bidirectional charging and discharging of the vehicle-mounted power battery.
本申请公开了一种车载充电机电路、车载充电机及电动汽车,该车载充电机电路包括:交流接口、交直流转换电路、后级升降压电路、动力电池;交流接口依次经交直流转换电路和后级升降压电路连接动力电池;当交流接口与电网连接,且电网向动力电池充电时,从电网输出的电流经过交直流转换电路输入后级升降压电路,经过后级升降压电路输入动力电池;当交流接口与电网或负载连接,且动力电池向电网或负载放电时,从动力电池输出的电流经过交直流转换电路输入电网或负载。本申请可以实现车载动力电池的双向充放电。
Vehicle-mounted charger circuit, vehicle-mounted charger and electric vehicle
车载充电机电路、车载充电机及电动汽车
2020-10-30
Patent
Electronic Resource
Chinese
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