Detecting outages in an LED lamp assembly

Apparatus and systems are disclosed for detecting outages in an LED lamp assembly 100. A lamp assembly includes a plurality of LED circuits 112 serially connected together. The LED circuits include an LED 118, a first resistor 120 and an optocoupler 122. Also a sense line electrically coupled to one...

Full description

Saved in:
Bibliographic Details
Main Authors Ronald Brombach, John Barrs
Format Patent
LanguageEnglish
Published 16.05.2018
Subjects
ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
Online AccessGet full text

Cover

More Information
Summary:Apparatus and systems are disclosed for detecting outages in an LED lamp assembly 100. A lamp assembly includes a plurality of LED circuits 112 serially connected together. The LED circuits include an LED 118, a first resistor 120 and an optocoupler 122. Also a sense line electrically coupled to one of the LED circuits having 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. There is also a vehicle include a headlamp power driver, a body control module and a lamp assembly with a sense line. Which again has a first voltage wherein the LEDs are operational and a second voltage when at least one LED has failed.
Bibliography:Application Number: GB20170012961