Power regulation of LED by means of an average value of the LED current and bidirectional counter
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United States of America Patent
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Jun 16, 2015
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N/A
app pub date -
Mar 26, 2010
filing date -
Apr 14, 2009
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Abstract
A circuit for the power regulation of an LED comprises a converter having a switch. The LED is interconnected in an output circuit, wherein a control unit controls the magnetization of an inductor, in that it actively clocks the switch. A measured actual value representative of the average value of the LED current is returned to the control unit and compared to a reference value.
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