ELECTRICALLY CONTROLLABLE PRIVACY GLAZING WITH ENERGY RECAPTURING DRIVER
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United States of America Patent
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Issued Date -
Nov 14, 2019
app pub date -
May 9, 2019
filing date -
May 9, 2018
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Abstract
A driver for an electrically dynamic structure may store and release energy during polarity cycling to improve the energy efficiency of operation. In some examples, the driver includes an energy storage element. In operation, the driver can charge an electrically controllable optically active material to a first operating voltage at a first polarity and subsequently discharge the optically active material during polarity reversal. The driver may store energy released from the optically active material during discharging and subsequently release the energy to charge the optically active material to a second operating voltage at a second polarity different than the first polarity.
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