Device for the inductive transmission of energy and/or data
First Claim
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.
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Accused Products
Abstract
The device has a primary circuit (1) that transmits energy or data via an intermediate circuit (2) to a secondary circuit (3) by means of induction. The intermediate circuit (2) has a very low quality factor. The inductive coupling between the intermediate circuit (2) and the secondary circuit (3) is reduced by inserting an additional leakage inductor (Ls ) so that energy or data is transmitted from the primary circuit (1) to the secondary circuit (3) as effectively as possible. This has the effect of lessening the damping effect of the intermediate circuit (2) on the secondary circuit (3).
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Citations
12 Claims
- 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.
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5. An arrangement for transmitting energy and/or data from a primary circuit to a secondary circuit, comprising:
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at least one transmitting and receiving antenna in the primary circuit, a tuned circuit comprising at least one secondary coil and one capacitor in the secondary circuit, an inductive intermediate circuit, arranged the primary circuit and the secondary circuit, comprising an antenna that is inductively coupled via a coupling element to both the primary circuit and the secondary circuit, an additional leakage inductor inductively decoupled from the secondary coil and arranged in the secondary circuit, and wherein the coupling element has a leakage branch, wherein the magnetic flux of the leakage branch 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. - View Dependent Claims (6, 7, 8)
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9. An arrangement for transmitting energy and/or data from a primary circuit to a secondary circuit, comprising:
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at least one transmitting and receiving antenna in the primary circuit, a tuned circuit comprising at least one secondary coil and one capacitor in the secondary circuit, an inductive intermediate circuit, arranged the primary circuit and the secondary circuit, comprising an antenna that is inductively coupled via a coupling element to both the primary circuit and the secondary circuit, wherein the coupling element has a leakage branch, wherein the magnetic flux of the leakage branch 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. - View Dependent Claims (10, 11, 12)
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Specification