Patent ID: 6813316
Filing Date: 2004-11-02
Classification: G08C,H01F,H02J,H04B

Abstract:
An arrangement for non-contact transmission of electrical energy or signals between a base station having a plurality of connecting positions and a plurality of external units each adapted to be coupled without contact to a connecting position of the base station, in which:each connecting position of the base station comprises: a power supply for generating power to be transmitted to an external unit coupled to the base station at the connecting position; a transmitting side of an inductive non-contacting first coupler element for receiving power supplied from the at least one power supply and coupling energy to the external unit coupled to the base station at the connecting position; a receiving side of a non-contacting second coupler element for receiving feedback signals from the external unit coupled to the base station; and a controller for controlling the constancy of at least one parameter of the power supply according to the received feedback signals; each external unit comprises: a receiving side of the inductive first coupler element adapted to be coupled without contact to the transmitting side of the inductive first coupler element, a potential of the receiving side of the inductive first coupler element being separate from that of the transmitting side; means for measuring at least one parameter of the power received by the receiving side of the inductive first coupler element; means for generating feedback signals from the at least one parameter of the power received by the receiving side of the inductive first coupler element; and a transmitting side of the non-contacting second coupler element for transmitting the feedback signals to the receiving side of the second non-contacting coupler element, a potential of the transmitting side of the non-contacting second coupler element being separate from that of the receiving side; and the non-contacting second coupler element for transmitting the feedback signals to the base station is one of: an inductive coupler element, a capacitive coupler element or an optical coupler element.