04-15-2008, 10:35 PM
I don't think you can do that with a capacitor actually.
If you can you need to ad a diode so it doesn't feed back and pop the fuse.
A capacitor is not a regulated discharge device. It simply stores the charge and dumps it as fast as it can based on resistance to ground, or load.
It may be as simple as adding a diode, but the capacitor size shouldn't matter it will never charge up over 12 volts, or 14 or whatever your battery voltage is.
The diode would prevent the capacitor trying to discharge immediately and basicaly supply the whole truck with power. It would essentially isolate the detector from the truck making it a seperate circuit.
If you can you need to ad a diode so it doesn't feed back and pop the fuse.
A capacitor is not a regulated discharge device. It simply stores the charge and dumps it as fast as it can based on resistance to ground, or load.
It may be as simple as adding a diode, but the capacitor size shouldn't matter it will never charge up over 12 volts, or 14 or whatever your battery voltage is.
The diode would prevent the capacitor trying to discharge immediately and basicaly supply the whole truck with power. It would essentially isolate the detector from the truck making it a seperate circuit.