Contactless inductively coupled power transfer system
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United States of America Patent
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Sep 5, 2017
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app pub date -
Sep 17, 2013
filing date -
Sep 28, 2012
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Abstract
A contactless inductively coupled power transfer system includes a power supply device and a power receiving device. The power supply device includes a primary winding for generating an electromagnetic field (EMF) in response to an AC current flow having an operating frequency. The power receiving device includes a resonant circuit outputting an output voltage to a load and including a secondary winding and a reactance element. The reactance element is capable of forming a parallel resonant LC circuit with the secondary winding that resonates at the operating frequency, and forming a series resonant LC circuit that resonates at the operating frequency, and that is to be connected in series to the load.
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