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Unread 14-12-2013, 14:42
gpetilli gpetilli is offline
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Re: MicroControllers at competitions

If you are truly looking at shunt resistors <<25mohm you absolutely should use the voltage across the wire from the PDB to the speed controller. The resistance of the wire per foot is easily found online and will be just as accurate as a resistor you could afford to add - plus its FREE. Just put a volt meter across the wire (or add your micro-controller). If you are looking for a failure, the difference between 133 amps and 125 amps is not really relevant anyway.