LED DRIVER ARRANGEMENT WITH MULTIPLE CURRENT MIRRORS
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United States of America Patent
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Issued Date -
Dec 6, 2012
app pub date -
May 7, 2012
filing date -
May 31, 2011
priority date (Note) -
Abandoned
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Abstract
A current balancer arrangement constituted of a plurality of current mirror circuits, each of the current mirror circuits comprising a master leg and at least one slave leg is enabled. A constant current source is provided, arranged to provide power for a plurality of LED strings in parallel. Each of the plurality of LED strings is further arranged in series with a master leg of a particular one of the plurality of current mirror circuits, and with the slave leg of each of the balance of the current mirror circuits.
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