Method for power supply of e.g. screen display apparatus of personal computer by power supply- and data communication device, involves adjusting power emitted over transmission device by communication device in accordance with power value

摘要

The method involves providing a power supply- and data communication device with a transmission device for wireless energy radiation and an interface device for wireless data communication. Request messages are received from a screen display apparatus (3) by the power supply- and data communication device over the interface device, where the messages contain a power demand value, which characterizes power emitted from the screen display apparatus. The power emitted wirelessly over the transmission device is adjusted by the communication device in accordance with the power value. Independent claims are also included for the following: (1) an electrically operated apparatus (2) a power supply- and data communication device.