INTEGRATED DEVICE FOR ADJUSTING DIMMING OF LEDS, AND CONTROL METHOD
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United States of America Patent
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Issued Date -
Feb 2, 2017
app pub date -
Apr 26, 2016
filing date -
Jul 27, 2015
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An integrated device for adjusting dimming of LEDs includes a law memory storing a switching control law for LEDs. A modulated-clock generator coupled to an output of the law memory generates a modulated-clock signal having a parameter that varies according to the stored switching control law. A count stage coupled to an output of the modulated-clock generator generates a variable-frequency count signal. A comparator has an input coupled to an output of the count stage and compares the count signal with a setting value to generate a control signal for a LED channel that switches when the count signal reaches the setting value.
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