SailNet Community - View Single Post - FrankenBebi
Thread: FrankenBebi
View Single Post
post #22 of Old 11-30-2013
Reward for lost Kraken!
hellosailor's Avatar
Join Date: Apr 2006
Posts: 11,672
Thanks: 6
Thanked 141 Times in 138 Posts
Rep Power: 11
Re: FrankenBebi

Cap, as an alternative to a blocking diode, what about installing a crowbar diode across the power leads? If power is hooked up in reverse, it goes through the crowbar and that appears to be a dead short, blowing the fuse in the power line to the light. Rashly assuming a proper fuse has been installed, of course. But it gets the voltage drop from a blocking diode out of the circuit. Or opens the whole can of worms on "protections".

I'd still suggest adding a chip (there must be cheap ones out there, because they are being used in really cheap flashlights) that would allow the light to strobe and SOS. Seen in LED flashlights shipping from China to the US for $5 each, including ground post shipping, so the chip can't cost more than what, one cheap LED does?
hellosailor is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome