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Norge Aux Brake light - How to Place Diode in line

sempervee

sempervee

Tuned and Synch'ed
Joined
May 28, 2010
Messages
75
Location
Seattle
I have a set of flashing LED brake lights I want to connect to my Norge and I have located the yellow Brake light wire under the seat and have the Diode ready to install. I have soldered a short piece of wire to each end of the 2 inch diode and now it's 4 inches long.

*But there is barely room to cut the brake line and place the diode and then add the wiring for the lights. Where are you cutting into place the Diode.
Anyone have any pictures or info to share how you did yours ?
 
Hi there,

The diode will cause a forward voltage drop of ~0.7V per diode. It would require multiple diodes to get enough of a drop to reach 9V (from 14.8 of a running vehicle), but it can be done.

Stop and think about it, the "load" in this case is a light emitting diode, so it's already a one way street. If the diode was installed backwards, it would be a non-starter. But when installed correctly, there would be a forward voltage drop (same as LEDs).

Good Luck,
Anthony Martello
 
Hi, Thanks for the answer. I ended up not using the diode and wiring the LED auxilary brake lights in line. They work great when I use the brakes, they come on in concert with the brakes and off when I am off the brakes, except -

When not on the brakes the slightly flicker very faintly.. I imagine the wattage draw is so small as to be unreportable? Whatcha think?

Thanks!
 
That's exactly why you need the diode, the aux brake lights are being back fed from the tail light circuitry via the resistor (brake lights and tail lights are the same item, they just get brighter when the brake is applied).

Insert the diode in the brake circuitry, and then connect the aux brake lights upstream i.e. between the brake light switch(es) and the diode. Your troubles will be over.
 
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