Detecting outages in a LED lamp assembly
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United States of America Patent
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Apr 10, 2018
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app pub date -
Aug 15, 2016
filing date -
Aug 15, 2016
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Abstract
Apparatus and systems are disclosed for detecting outages in an LED lamp assembly. An example disclosed lamp assembly includes a plurality of LED circuits serially connected together. The LED circuits include an LED, a first resistor and an optocouper. The example disclosed lamp assembly also includes a sense line electrically coupled to one of the LED circuits. The sense line has a first voltage value when all of LEDs in that plurality of LED circuits are operational and a second voltage value when at least one of the LEDs has failed.
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