+ Reply to Thread
Results 1 to 6 of 6

Thread: Wiring LEDS for car lights. Need assistance.

  1. 2nd May 2009 07:18 PM #1
    Blis
    Blis is offline
    Blis Newbie
    Join Date
    May 2009
    Posts
    3

    Default Wiring LEDS for car lights. Need assistance.

    Alright, so I made a custom set of the BMW Angel Eye lights for my sports car, and am now trying to wire them properly. The setup that I'm trying to do, is so that I can turn on the inner and outer rings separately, but then also turn them both on simultaneously. I'm hoping to do this without wiring a second switch, but not fully sure that it's possible. Below is a picture of the setup.



    Any help is greatly appreciated!

    Thanks!
    Greg
    Reply With Quote Reply With Quote  

  2. 3rd May 2009 02:31 AM #2
    MikeMl
    MikeMl is online now
    MikeMl Excellent MikeMl Excellent MikeMl Excellent MikeMl Excellent MikeMl Excellent MikeMl Excellent MikeMl Excellent
    Join Date
    Mar 2009
    Location
    Utah
    Posts
    2,866

    Default

    The solution has to do with what kind of switch you can obtain. You basically need a four detent switch which could be wired to provide: Nothing, Inner, Outer, Inner & Outer. I have never seen an automotive style pull-switch with four detents. A three detent switch would could be wired to provide: Nothing, One, Both; where One could be either Inner or Outer.

    How much current do the lamps draw?
    Last edited by MikeMl; 3rd May 2009 at 02:37 AM.
    Reply With Quote Reply With Quote  
  3. 3rd May 2009 10:51 PM #3
    Blis
    Blis is offline
    Blis Newbie
    Join Date
    May 2009
    Posts
    3

    Default

    It's not lamps. LED's. High output. 960mlm intensity, 525nm wavelength, 20mA current, 3.5v supply. Those are attached to 470ohm resistors.
    Reply With Quote Reply With Quote  
  4. 4th May 2009 12:53 AM #4
    MikeMl
    MikeMl is online now
    MikeMl Excellent MikeMl Excellent MikeMl Excellent MikeMl Excellent MikeMl Excellent MikeMl Excellent MikeMl Excellent
    Join Date
    Mar 2009
    Location
    Utah
    Posts
    2,866

    Default

    So how many LEDs are you switching?

    Any insight on the mechanical configuration of the switch?
    Last edited by MikeMl; 4th May 2009 at 12:54 AM.
    Reply With Quote Reply With Quote  
  5. 4th May 2009 02:25 AM #5
    Blis
    Blis is offline
    Blis Newbie
    Join Date
    May 2009
    Posts
    3

    Default

    each ring has 2 led's, so each line will have 2 leds and 2 resistors attached to it. I'm curious as to what type of a switch I need so I can set it up for Nothing, Outer lights, Inner lights, Both lights.
    Reply With Quote Reply With Quote  
  6. 4th May 2009 06:32 AM #6
    Sceadwian
    Sceadwian is offline
    Sceadwian Excellent Sceadwian Excellent Sceadwian Excellent Sceadwian Excellent Sceadwian Excellent Sceadwian Excellent Sceadwian Excellent
    Join Date
    Oct 2006
    Location
    Rochester, NY U.S.
    Posts
    9,826
    Blog Entries
    1
    Send a message via AIM to Sceadwian Send a message via Yahoo to Sceadwian

    Default

    If you do two LED's in series you can use a small current limit resistor disipating less heat and generally wasting less power. At 12 V DC you'll be burning 300mw's in the resistors. If I'm not mistake the resistor value for two 3.5 LED in series at ~20ma is 160ohms and it would only dissipate 100mw's
    "Because I be what I be. I would tell you what you want to know if I
    could, mum, but I be a cat, and no cat anywhere ever gave anyone a
    straight answer, har har."
    Reply With Quote Reply With Quote  
+ Reply to Thread
« Previous Thread | DC motor control »

Similar Threads

  1. Need assistance pushing more current to LEDs
    By Team PSU in forum Electronic Projects Design/Ideas/Reviews
    Replies: 17
    Latest: 21st April 2009, 04:30 PM
  2. Help - Simulating runway lights with LEDs
    By foxenergy in forum Electronic Projects Design/Ideas/Reviews
    Replies: 14
    Latest: 15th April 2009, 01:31 AM
  3. LED christmas lights wiring config ?
    By things in forum Electronic Projects Design/Ideas/Reviews
    Replies: 4
    Latest: 19th December 2008, 12:45 AM
  4. Assistance in wiring a simple circuit?
    By things in forum Electronic Projects Design/Ideas/Reviews
    Replies: 50
    Latest: 20th September 2008, 02:34 AM
  5. Converting Christmas lights to LEDs
    By holabr in forum General Electronics Chat
    Replies: 14
    Latest: 15th December 2007, 06:21 PM

Tags for this Thread