Patent attributes
An energy-saving hub is connected to an electronic device, an AC power source and a mobile device. The energy-saving hug includes a power supply interface, a power module, an upstream connector, a downstream connector, a main control circuit, and a system circuit. The power supply interface is used to connect to the AC power source, the power module is connected to the power supply interface, the upstream connector and the downstream are connected to the power module, and the main control circuit is connected to the power module and the upstream connector. The system circuit is connected to the upstream connector, the downstream connector and the main control circuit, wherein the system circuit is maintained in a sleep mode. When the energy-saving hub connects to the electronic device or the mobile device, the main control circuit transmits a wake-up signal to the system circuit to wake up the system circuit.