Want to wire one LED bright/dim from two sources |
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Jugarum
Joined: Oct 16 2009 Posts: 12 Location: Sacramento CA |
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Looking for advice on the attached diagram. Will this work and what R values for the resistors and what diodes should I use.
TIA
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Phil
Owner, Oznium.com Joined: Feb 11 2003 Posts: 7134 Location: Bay Area, CA 2001 Toyota Highlander Last updated: 08/02/08 2000 Toyota 4Runner Last updated: 05/28/07 2006 Scion tC Last updated: 11/12/07 2002 GMC Sierra Last updated: 08/02/08 |
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I don't see a need for diodes. Perhaps you could try 1 x 560 ohm resistor for the bright. And a couple 560 ohm resistors in series for the dim.
http://www.oznium.com/resistors |
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bad venge
Joined: Jul 28 2007 Posts: 1602 1998 Dodge Avenger Last updated: 05/18/09 |
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I PREFER to use a voltage regulator , Use a 9 volt for the dim , then regular 12 volts for the bright ... Or use the PCM dimmer Oz sells , it makes it adjustable
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Jugarum
Joined: Oct 16 2009 Posts: 12 Location: Sacramento CA |
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I've clarified the layout to show what the switch controls. I thought that without the blocking diodes, there would be crossover current to both relays at the same time. I guess I know just enough to be dangerous.
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Jugarum
Joined: Oct 16 2009 Posts: 12 Location: Sacramento CA |
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Thanks, but I just want the LED as an indicator light showing which circuit was activated. |
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bad venge
Joined: Jul 28 2007 Posts: 1602 1998 Dodge Avenger Last updated: 05/18/09 |
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My bad I thought you wanted a two brightness LED band in the foglights (ALA Audi headlights)
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bad venge
Joined: Jul 28 2007 Posts: 1602 1998 Dodge Avenger Last updated: 05/18/09 |
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Better suggestion use an RGB Led and have different COLORS
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Jugarum
Joined: Oct 16 2009 Posts: 12 Location: Sacramento CA |
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Sounds like a good idea. Would this be the way to wire it?
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bad venge
Joined: Jul 28 2007 Posts: 1602 1998 Dodge Avenger Last updated: 05/18/09 |
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Common Cathode to ground power to choice of colors
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Jugarum
Joined: Oct 16 2009 Posts: 12 Location: Sacramento CA |
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Thanks much! I'll give that a try.
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