Isolated solid-state active pre-charger

In the embodiment of the invention, the power supply system with the isolated solid-state active pre-charger comprises a high-voltage battery, a capacitive circuit and a pre-charging circuit, and the pre-charging circuit is configured to charge the capacitive circuit from the high-voltage battery. The pre-charge circuit comprises a flyback transformer and a primary side and a secondary side of the flyback transformer correspond to a primary coil and a secondary coil of the flyback transformer, the high-voltage battery is connected to the primary side, the capacitance circuit is coupled to the secondary side, and when the output voltage of the secondary side is basically equal to or higher than the electric quantity in the high-voltage battery, the capacitance circuit is connected to the high-voltage battery. The charge is fed back to the high-voltage battery. 本发明实施例中，一种具有隔离式固态有源预充电器的电源系统包括高压电池、电容电路和预充电路，预充电路配置为从高压电池对电容电路进行充电，预充电路包括反激变压器且其初级侧和次级侧与反激变压器的初级线圈和次级线圈相对应，其中，高压电池连接到初级侧，其中，电容电路耦合到次级侧，其中，当次级侧的输出电压基本上等于