| 摘要 |
The field of the invention relates to Universal Serial Bus power supply units for power plates. It is desirable to provide high currents at power plates for USB connectors. However space restrictions at the back of the power plate provide limitations on the size of power supplies which could be used to provide power. Embodiments of the invention provide a Universal Serial Bus power supply unit comprising a Universal Serial Bus connector electrically connected to a transformer via a cable. The Universal Serial Bus connector is configured to be inserted in a receptacle in a power plate and retained in the receptacle by an attachment mechanism to provide a USB power outlet from the face of the power plate. The transformer converts mains power to a power output for the Universal Serial Bus connector. The transformer has a housing. The transformer has an input adapted to be connected to mains wiring and an output for providing power to the Universal Serial Bus connector. The Universal Serial Bus connector is remote from the transformer. The cable electrically connects the transformer to the Universal Serial Bus connector to provide the output power from the transformer to the Universal Serial Bus connector. The unit is configured to be installed by inserting the Universal Serial Bus connector into a receptacle in a power plate and connecting the input of the transformer to mains wiring. |
