CAPACITIVE LOAD DRIVING APPARATUS AND METHOD THEREOF
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United States of America Patent
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Issued Date -
Jul 25, 2013
app pub date -
Jul 25, 2012
filing date -
Jul 25, 2011
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Abandoned
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Abstract
A load driving apparatus and a method thereof are provided. The provided load driving apparatus includes a first rectification unit, a first conversion unit and a second conversion unit. The first rectification unit is configured to receive and rectify an AC voltage, so as to output a first DC voltage. The first conversion unit is coupled to the first rectification unit, and is configured to receive and convert the first DC voltage, so as to output a second DC voltage. The first conversion unit is further configured to adjust the second DC voltage according to a feedback signal relating to the second DC voltage. The second conversion unit is coupled to the first conversion unit, and is configured to receive and convert the second DC voltage, so as to output a third DC voltage with a constant current to drive a first capacitive load.
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