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.


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    Title :

    Effectively Driving LED Arrays with Passive Electric Circuits for Dual Function Automotive Applications


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2004 World Congress & Exhibition ; 2004



    Publication date :

    2004-03-08




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Effectively Driving LED Arrays with Passive Electric Circuits for Dual Function Automotive Applications

    Wells, B. C. / Mallory, D. S. / Hodapp, M. et al. | British Library Conference Proceedings | 2004


    Effectively driving LED arrays with passive electric circuits for dual function automotive applications

    Wells,B.C. / Mallory,D.S. / Hodapp,M. et al. | Automotive engineering | 2004


    Effectively Driving LED Arrays with Passive Electric Circuits for Dual Function Automotive Applications

    Wells, B. C. / Mallory, D. S. / Hodapp, M. et al. | British Library Conference Proceedings | 2004


    Automotive Applications: Passive Components

    George, S. T. / Institute of Electronics and Telecommunications Engineers / Indian Institute of Technology | British Library Conference Proceedings | 2001