Electrical system

The invention relates to an electrical system. In some configurations, a system includes a power supply, a capacitor, a pre-charge circuit, and/or a controller. The capacitor may be electrically connected to a power source. The pre-charge circuit may be electrically connected between the power source and the capacitor. The pre-charge circuit may include a switch connected in parallel with the resistor. The controller may be electrically connected to the power source and the pre-charge circuit. The controller may pre-charge the capacitor for a first time via the resistor to a first voltage. The controller may second pre-charge the capacitor via the switch from the first voltage to a second voltage. 本申请涉及一种电气系统。在一些配置中，系统包括电源、电容器、预充电电路和/或控制器。电容器可以电连接到电源。预充电电路可以电连接在电源和电容器之间。预充电电路可以包括与电阻器并联连接的开关。控制器可以电连接到电源和预充电电路。控制器可经由电阻器将电容器进行第一次预充电，达到第一电压。控制器可以经由开关对电容器进行第二次预充电，从第一电压达到第二电压。