Current steering module for use with LED strings
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United States of America Patent
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-
Dec 1, 2015
Grant Date -
Dec 4, 2014
app pub date -
Jun 2, 2014
filing date -
May 31, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In an embodiment, a lamp control circuit is provided. The lamp control circuit includes an intermediate current steering block configured to be coupled to a cathode of a first light-emitting device of a plurality of light-emitting devices and a final current steering block configured to be coupled to a cathode of a final light-emitting device of the plurality of light-emitting devices. The final current steering block is configured to disable the intermediate current steering block and conduct current when a voltage input to the plurality of light-emitting devices is sufficient to activate all of the plurality of light-emitting devices.
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