Two-channel LED driver and the control method thereof
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United States of America Patent
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Mar 6, 2018
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N/A
app pub date -
Jun 21, 2017
filing date -
Jun 30, 2016
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Abstract
A two-channel LED driver adopts one power stage to provide a constant drive current to drive a first channel LED and a second channel LED, and to provide a power supply voltages to power a smart module. The two-channel LED driver controls the total current flowing through the first channel LED and the second channel LED according to a first dimming signal input by users through the smart module, and controls the dimming ratio between the two channels according to a second dimming signal. The two-channel LED driver provides high performance with simple circuit structure.
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