I would call it a poor man's WAM module for a two liner
In fact I had two chips left over and currently there is no money in the budget for two additional Lane Brains.
So I thought about chipping the rails, but the chips aren't secured against a short on the motor side....
I tried to find a simple layout for an electronic fuse but things were too complicated to implementfor me, as I'm not much into electronics...
I came to the idea in putting a 12V / 20W halogen spot light between each chip and the track. If there is a short, this will limit current to about 2 Amps, so that should do.
This approach has several drawbacks (That's what I think, some guessing involved):
- The more amps the motor draws, the more amps go through the spot light. So car should be slower than without. Especially acceleration will suffer.
- Breaks will become softer.
- I do not really know, if this kind of currency limitation is good enough.
- Sure, there will be no warranty, as the chip never was intended to be used like this. So, if the chip is destroyed, this is my risk.
However, I do not mind for home use and I take the risk.
What I'd like to ask: Does anybody know about electronic fuses that can be used to protect such a chip. Would be happy to put one in.