ADAPTIVE FILTER FOR LED DIMMER
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United States of America Patent
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Issued Date -
Sep 26, 2013
app pub date -
Feb 8, 2013
filing date -
Mar 22, 2012
priority date (Note) -
Abandoned
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Abstract
A dimming controller for an LED lamp controls dimming using an adaptive filter to reduce or eliminate perceivable flickering and to provide smooth transitions during active dimming. During stable conditions, the adaptive filter operates with a relatively narrow bandwidth to filter noise that may lead to perceivable flickering. During active or startup conditions, the adaptive mapping filter operates with a high bandwidth to provide a quick response to the dimmer switch.
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