Electric machine and power supply system having battery pack
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United States of America Patent
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Aug 25, 2015
Grant Date -
Apr 14, 2011
app pub date -
Oct 13, 2010
filing date -
Oct 14, 2009
priority date (Note) -
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Abstract
A battery pack includes a first receiving antenna including a first inductor and a first capacitor for receiving electric power from a first resonant magnetic field generated by a power supply source, at least one secondary battery charged by the electric power received by the first receiving antenna, an oscillator for producing radio-frequency power by DC power discharged from the secondary battery, and a transferring antenna including a second inductor and a second capacitor for generating a second resonant magnetic field from the radio-frequency power. A primary surface of the first inductor is parallel to a first plane of the battery pack, and a primary surface of the second inductor is parallel to a second plane of the battery pack. The second plane intersects with the first plane at an angle of a range of between 45° and 90° including 45° and 90°.
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