Method and converter for supplying current to series connection of LEDs
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United States of America Patent
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Dec 27, 2016
Grant Date -
Jul 16, 2015
app pub date -
Jan 13, 2015
filing date -
Jan 15, 2014
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Abstract
The present disclosure describes a boost converter for supplying current to a series connection of light-emitting diodes (LEDs). A duty ratio of the main switch of the converter is configured to be controlled on the basis of a current feedback signal. The current feedback signal is formed as a weighted average of at least two signals including a first signal representing the current through the series connection of LEDs and a second signal representing a current through the main switch.
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