LED Current Regulator
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United States of America Patent
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N/A
Issued Date -
Aug 16, 2012
app pub date -
Feb 1, 2012
filing date -
Feb 11, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A circuit includes a plurality of first current-regulator portions, and a second current-regulator portion. The circuit further includes a plurality of switches coupled to the second current-regulator portion. The plurality of switches is configured to sequentially and selectively couple and decouple the first current-regulator portions to the second current-regulator portion to sequentially form a plurality of current regulators. The current regulators are configured to regulate current flow through light emitting diodes (LEDs), which are respectively associated with the first current-regulator portions. The circuit provides for substantially equal luminosity generation by the LEDs via the relatively lowering of voltage and current mismatch between the formed current regulators.
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