励磁断续器和蓄电池充电器电路不仅控制车辆马达的励磁,而且还控制蓄电池的充电电流。因此,本电路无需在车舱内单独设置充电器,只需增设能控制充电和马达励磁的元件,这些元件是一只小的高频感应线圈和两只分立的二极管。当电动车辆由自身的蓄电池供电行驶时,图中的一对开关S_1和S_4是闭合的,从蓄电池通过励磁线圈F、感应线圈L、晶体管Q_1和二极管D_1再到蓄电池, The excitation interrupter and the battery charger circuit control not only the excitation of the vehicle’s motor but also the battery’s charging current. Therefore, this circuit eliminates the need for a separate charger in the cabin and simply adds components that control charging and motor excitation. These components are a small, high-frequency induction coil and two separate diodes. When the electric vehicle is powered by its own battery, the pair of switches S_1 and S_4 in the figure are closed, from the battery through the exciting coil F, the induction coil L, the transistor Q_1 and the diode D_1 to the battery,