Piezoelectric energy harvester and wireless switch including the same
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United States of America Patent
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Jan 23, 2018
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app pub date -
Sep 1, 2015
filing date -
Sep 1, 2014
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Abstract
Provided are a piezoelectric energy harvester and a wireless switch including the piezoelectric energy harvester. The wireless switch uses energy generated in a piezoelectric energy harvester as a source of driving power, thereby transmitting communications signals to an external electronic device without requiring a battery. In addition, the piezoelectric energy harvester generates displacement in a piezoelectric element through a magnetic force generated in a magnet, thereby generating a constant level of energy when generating the driving power.
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