Inductive power transmission method

A method of inductive power transmission by a transmitter to a receiver of an electrically operated device, the transmitter having a control for power to be transmitted and at least one transmitter coil and the receiver having at least one receiver coil, the method comprising:

• transmitting a minimum power by the transmitter at a start of a power transmission, wherein the minimum power is configured to activate a controller of the receiver of the electrically operated device;
• receiving by the control, from the controller of the receiver, data packets that contain information about the electrically operated device by influencing a field of the transmitter coil;
• transmitting a power adapted to a power class of the electrically operated device by the transmitter based at least in part on the data packets
• wherein a plurality of a transmitter coils are provided, and
• wherein the transmitter coils transmit the minimum power consecutively through the control, and
• switching by control switches the plurality of transmitter coils for an optimum power transmission in which at least one of a coupling with the receiver coil and an influencing of its electrical field is greatest,
• interrupting the optimal power transmission of the switched transmitter coil at predeterminable time interval and the minimum power is applied to at least one of the transmitter coils adjacent to the previously switched transmitter coil and the transmitter coils overlapping the previously switched transmitter coil;
• and
• switching, by the control, the transmitter coil for the optimal power transmission in which at least one of the coupling with the receiver coil and the influencing of its electrical field is greatest.