LED DRIVE DEVICE, AND LIGHTING SYSTEM INCORPORATING THE SAME
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United States of America Patent
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Issued Date -
Nov 6, 2014
app pub date -
May 5, 2014
filing date -
May 6, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An LED drive device includes: a drive module generating, based on a control signal, a drive current that flows through an LED-based load, and generating, based on the drive current, a sampling current associated with the drive current; a voltage detection module detecting a voltage across the LED-based load, and generating an adjustment signal based on the detection result and on a predetermined reference voltage; and a control signal generation module generating the control signal based on the adjustment signal, the sampling current and the predetermined reference voltage.
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