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AssigneeSemiconductor Components Industries, LLC
InventorsGelu Voicu, Leonard Gagea, Anthony Russell
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According to some embodiments, a light emitting diode (LED) power management and diagnostics history recording integrated circuit includes a power management circuit controlling a supply of power to the LED, a diagnostics detection circuit recording a diagnostics history for the LED, a non-volatile diagnostics history memory storing the diagnostics history; and an external interface for transferring externally the diagnostics history stored in the non-volatile diagnostics history memory. The diagnostics history includes diagnostics data for at least two sequential occurrences of a reoccurring fault condition. The diagnostics data may include temperature, under-voltage, over-voltage, open-circuit load, and short-circuit load indicators, among others. A diagnostics analysis system downloads the diagnostics data after a given operation period and performs maintenance decisions according to the diagnostics data. Such systems are particularly useful for diagnosing intermittent faults and/or faults in remotely-located systems, and making maintenance decisions accordingly.
A light-emitting system comprising:
A diagnostics history and power management integrated circuit comprising:
A diagnostics history recording and retrieval system comprising:
A light emitting diode diagnostics and power management method comprising:
A system comprising:
Dependencies are inferred from the claim text.