| LED DRL Exterior wiring [message #310275] |
Sat, 12 November 2016 16:32  |
Jim Schulte
Messages: 9
Registered: January 2016
Location: Strawberry Point, IA
Karma: 0
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Junior Member |
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Renewing wiring on a 1977 23 ft Birchaven
Thinking of all exterior lighting to LED except headlights and adding DRL
Plan - replace flasher ( only one on this coach) with a electronic one
LEDs will be non polarity sensitive
Install a DRL-1
Include out side upper clearance light in parallel with side clearance light on front
Wire rear upper clearance light and side light as the front is wired - front is wired
Turn on - side off
Turn off - side on
Hoped for result
Engine on all running lights on
Turn signal on
Directional light flash
Side clearance lights flash
Top out board clearance light flash
Will this work? Jim
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| Re: LED DRL Exterior wiring [message #310286 is a reply to message #310275] |
Sun, 13 November 2016 00:20  |
Bullitthead
Messages: 1411
Registered: November 2013
Karma: 5
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Senior Member |
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Post us a link to those "non-polarity sensitive" LEDs...they would come in handy for some reverse wired applications.
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
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| Re: LED DRL Exterior wiring [message #310309 is a reply to message #310275] |
Sun, 13 November 2016 19:05 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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"Do it yourself" non-polarized LEDs... or anything else DC. Simply acquire a bridge rectifier, or assemble four diodes in a bridge configuration, of sufficient current capacity and reverse voltage for the load and supply intended. Feed your unknown polarity DC (Or AC) into the "AC" terminals, and connect the LED or other load properly to the + and - terminals. Voila! No longer polarity sensitive. I bought several hundred 1N series silicon diodes for about 3 cents each off ebay.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: LED DRL Exterior wiring [message #310311 is a reply to message #310275] |
Sun, 13 November 2016 19:27 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Quick and dirty running lights - series several diodes, and feed the low beams through them from an ignition source. The junction drop is a bit over half a volt per diode, and the current reduces accordingly. Although they're lit, they will be overpowered by the high beams or regular power to the low beams, so the circuit can be left connected without switches or anything else. If I were going to do this, I'd take my trusty VOM and measure the voltage across a GM auto headlight in DRL mode. A bit of arithmetic would give the necessary drop and current. I like diodes.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] LED DRL Exterior wiring [message #310312 is a reply to message #310309] |
Sun, 13 November 2016 19:24 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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My trusty Fluke 77 tells me polarity of D.C. circuits. Very handy for LEDs,
and polarity sensitive circuits. GMCs, particularly Coachman up fitted
ones, are notorious for lighting circuits being bas-akwards. I never assume
they are correct, I check them all.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Nov 13, 2016 5:06 PM, "Johnny Bridges via Gmclist" <
gmclist@list.gmcnet.org> wrote:
> "Do it yourself" non-polarized LEDs... or anything else DC. Simply
> acquire a bridge rectifier, or assemble four diodes in a bridge
> configuration, of
> sufficient current capacity and reverse voltage for the load and supply
> intended. Feed your unknown polarity DC (Or AC) into the "AC" terminals,
> and
> connect the LED or other load properly to the + and - terminals. Voila!
> No longer polarity sensitive. I bought several hundred 1N series silicon
> diodes for about 3 cents each off ebay.
>
> --johnny
>
> --
> '76 23' transmode Norris upfit, 76 26' Eleganza(?) with beaucoup mods and
> add - ons.
> Braselton, Ga.
>
> "Sometimes I wonder what tomorrow's gonna bring when I think about my
> dirty life and times" --Warren Zevon
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: [GMCnet] LED DRL Exterior wiring [message #310324 is a reply to message #310311] |
Mon, 14 November 2016 04:30 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Or use this FREE gmc meter
http://www.gmcmhphotos.com/photos/gmc-chemicals-and-tools/p46162-digital-voltmeter.html
On Sun, Nov 13, 2016 at 5:28 PM Johnny Bridges via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Quick and dirty running lights - series several diodes, and feed the low
> beams through them from an ignition source. The junction drop is a bit over
> half a volt per diode, and the current reduces accordingly. Although
> they're lit, they will be overpowered by the high beams or regular power to
> the
> low beams, so the circuit can be left connected without switches or
> anything else. If I were going to do this, I'd take my trusty VOM and
> measure the
> voltage across a GM auto headlight in DRL mode. A bit of arithmetic would
> give the necessary drop and current. I like diodes.
>
> --johnny
> --
> '76 23' transmode Norris upfit, 76 26' Eleganza(?) with beaucoup mods and
> add - ons.
> Braselton, Ga.
>
> "Sometimes I wonder what tomorrow's gonna bring when I think about my
> dirty life and times" --Warren Zevon
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Unsubscribe or Change List Options:
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| Re: LED DRL Exterior wiring [message #310331 is a reply to message #310275] |
Mon, 14 November 2016 07:59 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Somebody with a GMC auto with DRLs how's to measure the voltage applied to the headlights in DRL mode with the engine running and report back. I got old ford, newer Mopar and Kia, no DRLs.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
[Updated on: Mon, 14 November 2016 07:59] Report message to a moderator |
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| Re: LED DRL Exterior wiring [message #310346 is a reply to message #310331] |
Mon, 14 November 2016 18:28 |
Jim Schulte
Messages: 9
Registered: January 2016
Location: Strawberry Point, IA
Karma: 0
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Junior Member |
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I checked with the State Highway Patrol and they had no problem with upper clearance lights as a part of the turn signal system. But I did discover the flaw in my plan, the upper clearance light which are installed are polarity sensitive so am not sure they will blink if wired in parallel with the side clearance light.
I just ordered the other bulbs and they will be not be polarity sensitive. Ordered from Super Bright led's - just google the for the web site
The DRL's - My intention is to just light the all clearance light upper and side and front and rear parking lights.
Jim
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