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| dlo914 |
 Nov 30 2012, 12:45 AM
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Whatchu' lookin' at?!?!  Group: Members Posts: 3,432 Joined: 6-September 04 From: San Gabriel, CA Member No.: 2,697  |
So i've retrofitted some LED rings into my daily driver, but i'm only using the LEDs as the running lights and using the filament bulb when brakes are applied. how would i go about using the LEDs for both running and braking light usage? i know i'm suppose to add a resistor to each positive LED wire, but i'm so confused as to what OHM rating or % etc i'm suppose to use. The guys at two radioshacks were useless.
Here's how they look at the moment: (IMG:http://www.914world.com/bbs2/uploads_offsite/i62.photobucket.com-2697-1354257938.1.jpg) |
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| stugray |
Nov 30 2012, 07:34 PM
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Advanced Member Group: Members Posts: 3,825 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
There are off the shelf drivers that can do this.
Google 'buckpuck'. If I knew the max current when on full, I could suggest a converter that takes 12VDC and regulates LEDs. Stu |
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| Spoke |
Nov 30 2012, 07:51 PM
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#3
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Jerry Group: Members Posts: 7,052 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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QUOTE(stugray @ Nov 30 2012, 08:34 PM)  There are off the shelf drivers that can do this. Google 'buckpuck'. If I knew the max current when on full, I could suggest a converter that takes 12VDC and regulates LEDs. Stu I am familiar with the Buckpuck. The Buckpuck is a great product line manufactured in the USA by a small company called LEDdynamics in Vermont. The switching IC in the Buckpuck product line is MP2483 from MPS out of San Jose, CA. I worked for them at the time and the Buckpuck was one of my design wins. |
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Posts in this topic
dlo914 SOT: electrical gurus check in... Nov 30 2012, 12:45 AM
Tom LED brilliance is controlled by current flow. Curr... Nov 30 2012, 04:49 AM Tom Are these rings a plug in to the regular socket wh... Nov 30 2012, 05:58 AM Spoke For the brake light with higher intensity, as Tom ... Nov 30 2012, 08:26 AM Bartlett 914 I am doubtful that adding resistance will give sat... Nov 30 2012, 08:33 AM Nine_14 http://en.wikipedia.org/wiki/LED Nov 30 2012, 09:12 AM Tom Here is a simple led circuit than will allow the r... Nov 30 2012, 02:24 PM mr914 Temporary, or could be permanent...
Buy a variabl... Nov 30 2012, 03:04 PM Dave_Darling All the automotive LED taillights I know of blink.... Nov 30 2012, 05:23 PM
Spoke
If it were as simple as putting a resistor in lin... Nov 30 2012, 05:52 PM Spoke Here's a switching converter to efficiently dr... Nov 30 2012, 06:07 PM nukepipe
So i've retrofitted some LED rings into my da... Nov 30 2012, 08:42 PM aircooledtechguy I'm probably missing something here, but if yo... Dec 1 2012, 12:09 AM falconfp2001 I would say you need to check this site out
http:... Dec 1 2012, 02:58 AM bperry Here is a link to a DIY article on how to wire up ... Dec 1 2012, 12:29 PM |
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