Patent ID: 7079013
Filing Date: 2006-07-18
Classification: B60C,G06K

Abstract:
1. A device for the inductive transmission of energy and/or data from a primary circuit, comprising at least one transmitting and receiving antenna, to a secondary circuit, comprising a tuned circuit comprising at least one secondary coil and one capacitor, wherein between the primary circuit and the secondary circuit there is arranged an inductive intermediate circuit comprising an antenna that is inductively coupled via a coupling element to both the primary circuit and the secondary circuit, wherein an additional leakage inductor that is inductively decoupled from the secondary coil is arranged in the secondary circuit, and/or the coupling element has a leakage branch, the magnetic flux of which is not at the same time the coupling flux of the secondary circuit and of the intermediate circuit, whereby the inductive coupling between the intermediate circuit and the secondary circuit is reduced, but the overall effectiveness of transmission from the primary circuit to the secondary circuit is improved.