DEVICE AND METHOD FOR INDUCTIVE POWER TRANSMISSION
First Claim
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1. A device for inductive power transmission, comprising:
- an oscillating circuit having an inductance and a capacitance;
a power component configured for exciting an electric oscillation in the oscillating circuit;
a determination unit configured for determining an input current of the power component; and
a frequency shifting unit configured to vary a resonant frequency of the oscillating circuit.
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Abstract
A device for inductive power transmission includes an oscillating circuit having an inductance and a capacitance, a power component for exciting an electric oscillation in the oscillating circuit, a determination unit for determining an input current of the power component, and a frequency shifting unit designed to vary a resonant frequency of the oscillating circuit.
23 Citations
10 Claims
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1. A device for inductive power transmission, comprising:
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an oscillating circuit having an inductance and a capacitance; a power component configured for exciting an electric oscillation in the oscillating circuit; a determination unit configured for determining an input current of the power component; and a frequency shifting unit configured to vary a resonant frequency of the oscillating circuit. - View Dependent Claims (2, 3)
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4. A method for operating a device for inductive power transmission, comprising:
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varying a resonant frequency of an oscillating circuit of the device; determining an input current of a power component of the device; and comparing the input current with a threshold value to infer a presence of a foreign object between the device and a power receiver. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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Specification