This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Effectively Driving LED Arrays with Passive Electric Circuits for Dual Function Automotive Applications
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 08, 2004 by SAE International in United States
Annotation ability available
Many LEDs are typically required to source sufficient light for automotive exterior applications. Maintaining even illumination requires the drive current to be well controlled for all the LEDs in an array. This can be challenging in the voltage driven automotive environment when dual level operation is desired, such as for combined stop and tail function. A current source in the form of an LED Driver Module (LDM) can be employed to drive the LED array. However, a passive resistor network may be capable of driving the LED array with a reduction in both cost and complexity when compared to an LDM solution. The advantages and disadvantages of various passive resistor network configurations for dual level operation will be examined.
|Technical Paper||LED Automotive Rear Combination Lamp (RCL) Dual Level Driver Electronics|
|Technical Paper||First “All-LED” Rear Combination Lamp –Challenges and Opportunities|
|Technical Paper||LED Drive Modules for Automotive Rear Combination Lamps|
CitationWells, B., Mallory, D., and Hodapp, M., "Effectively Driving LED Arrays with Passive Electric Circuits for Dual Function Automotive Applications," SAE Technical Paper 2004-01-0222, 2004, https://doi.org/10.4271/2004-01-0222.
- SnapLED 150 LEDs technical data LumiLeds publication No. DS08 (2002)
- SuperFlux LED Categories and Labels LumiLeds Application Brief AB20-7 (2003)
- SuperFlux and SnapLED Emitter Forward Voltage Data LumiLeds Application Brief AB20-3B (2002)