| 摘要 |
A load device is coupled to an electronic device. The load device includes a load, an input interface, an output interface, a detecting module, and a switch module. The detecting module can determine if a parameter of an input power from the input interface is greater than a predefined parameter. The switch module is connected to the input interface, the load and the output interface. The switch module can switch off the input power to the load and the output interface when the parameter of the input power from the electronic device is not greater than the predefined parameter. |
