CONTROL CIRCUIT OF LIGHT EMITTING DIODES
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United States of America Patent
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N/A
Issued Date -
Apr 12, 2012
app pub date -
Oct 7, 2011
filing date -
Oct 7, 2010
priority date (Note) -
Abandoned
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Abstract
A control circuit of light emitting diodes includes a driver and a target voltage adjuster. The driver is used for providing an output power to drive at least one series of light emitting diodes, and the driver forces a smallest terminal voltage on the terminals of the at least one series of light emitting diodes to approach a target voltage. The target voltage adjuster adjusts the target voltage according to the smallest terminal voltage.
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