Power generation unit, electronic apparatus, transportation device, and method of controlling power generation unit
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United States of America Patent
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Apr 14, 2015
Grant Date -
Apr 4, 2013
app pub date -
Oct 2, 2012
filing date -
Oct 3, 2011
priority date (Note) -
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Abstract
A power generation unit includes a deforming member (a beam) adapted to deform while switching a deformation direction, a first piezoelectric device provided to the deforming member (the beam), a second piezoelectric device provided to the deforming member (the beam), an inductor electrically connected to the first piezoelectric device, a switch disposed between the first piezoelectric device and the inductor, and a control section adapted to detect a voltage generated in the second piezoelectric device, and if the voltage detected has a level one of equal to and higher than a predetermined level, electrically connect the first piezoelectric device and the inductor to each other using the switch.
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