Need help in designing LED automotive circuit board

Discussion in 'General Electronics Chat' started by dlou87, Oct 3, 2006.

  1. dlou87

    Thread Starter New Member

    Oct 3, 2006
    Here is the scenario. It is an LED design for an automotive 12v DC application. I have used LED Dynamics Buck Pucks in the past to feed 1 Lux III. I am having too many problems with them, so we need to design something new. Here are the problems

    -They are causing FM interference in some cars due to we think..the switching frequencey
    -The LED is blinking in some cars when the ignition is turned on, this needs to be fixed
    -Too expensive for our application

    So, I want a driver that will
    -Power 1 Lux III at 900-1000ma(TBD) from 12v DC
    -We want to design the circuit board to fit into our device(we have diagrams, but it needs to be a 32mm circle)
    -Have no FM interference
    -Will keep the LED at the same brightness for a long period of time
    -Have no "flickering" issues
    -be able to meet our budget

    Does anyone have any ideas who can help design/make these. We want around 500-1000 of them. I spoke with George @ TaskLED we are looking for other people that can help!

    Does anyone have any idea whats causing the flickering and FM issue?? Any help would be greatly appreciated.