Matching networks, inductors, and coupled-inductor capacitive wireless power transfer circuit and related techniques
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United States of America Patent
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Aug 16, 2022
Grant Date -
Oct 17, 2019
app pub date -
Mar 18, 2019
filing date -
Mar 16, 2018
priority date (Note) -
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Abstract
In one implementation, a matching network is provided comprising a pair of input terminals; a pair of output terminals; and at least two reactive components disposed between the pair of input terminals and the pair of output terminals. At least one of the reactive components comprises a coupled-inductor. In various implementations, the second reactive component can be a capacitor, and the capacitor can be at least partially realized using the parasitic capacitances of the environment. The matching network may be disposed in a capacitive wireless power transfer (WPT) system. In other implementations, inductors and coupled-inductors are further provided. In some implementations, for example, an inductor, such as but not limited to a coupled-inductor, may comprise a toroidal or semi-toroidal core comprising foil wire interleaved without notches.
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