How do I work out what size resistor I need?
After asking why the fuse in my ATV was blowing, I was told to insert a resistor between the switch and ground. The problem now, is determining what size resistor to use. Since fuses are ~$2.00 a piece, I'd like to avoid the trial-and-error method.
The power source is a 12V 12AH motorcycle style battery.
The voltage will likely fluctuate during operation due to the alternator (12 - 16V?).
The circuit is basically a direct short to ground through an LED:
I have no knowledge about the LED, other than it's part of a switch rated for 20A @ 12VDC.
The fuses are 15A.
How can I determine what size resistor I need?
After asking why the fuse in my ATV was blowing, I was told to insert a resistor between the switch and ground. The problem now, is determining what size resistor to use. Since fuses are ~$2.00 a piece, I'd like to avoid the trial-and-error method.
The power source is a 12V 12AH motorcycle style battery.
The voltage will likely fluctuate during operation due to the alternator (12 - 16V?).
The circuit is basically a direct short to ground through an LED:
I have no knowledge about the LED, other than it's part of a switch rated for 20A @ 12VDC.
The fuses are 15A.
How can I determine what size resistor I need?
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