SHORT DETECTION CIRCUIT FOR AN LED DRIVER AND SHORT DETECTION METHOD

A short detection circuit is provided for detecting a short circuit condition of an LED. A voltage threshold is set which is dependent on the LED operating current, such that there are at least two different voltage thresholds at two different LED operating currents. This means false detections can...

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Bibliographic Details
Main Authors ISPHORDING, Alexander Rudolf Albrecht, KALKSCHMIDT, Christian, EBERSON,Etienne Nicolaas Kathalijntje Paulus Marie, RADERMACHER, Harald Josef Günther
Format Patent
LanguageEnglish
French
German
Published 03.01.2018
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:A short detection circuit is provided for detecting a short circuit condition of an LED. A voltage threshold is set which is dependent on the LED operating current, such that there are at least two different voltage thresholds at two different LED operating currents. This means false detections can be reduced and the LED current operating range can be increased over which the short detection functions.
Bibliography:Application Number: EP20140750732