Patent · US Active

Detecting LED failure conditions

US10945323B1 · kind B1 · utility

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0References

18Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Adolfo De Cicco · Azzano, IT
Michael Weis · Planegg, DE
Gernot Unterweger · Latschach, AT
Rosario Chiodo · Selvazzano Dentro, IT
Dietrich Bonart · Bad Abbach, DE

Key dates

Filing date	Apr 1, 2020
Grant date	Mar 9, 2021
Priority date	—
Expiry date	Apr 1, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH05B45/3725
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

This disclosure includes systems, methods, and techniques for controlling a plurality of light-emitting diodes (LEDs). For example, a circuit includes a switching device, where the switching device is electrically connected to an LED of the plurality of LEDs, and where the switching device is configured to control whether the LED receives an electrical signal from a power source. Additionally, the circuit includes processing circuitry configured to determine that the LED is associated with a bright failure condition by attempting to prevent the LED from receiving the electrical signal from the power source using the switching device and disable the LED in response to detecting the bright failure condition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.