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The easy fix is to integrate the precharge circuit into the controller. Add a relay to control the precharge resistor (maybe use a ceramic heater and have it serve dual purpose as a cabin heater by letting the relay reconnect the heater to a small MOSFET PWM control?) and an optoisolator to monitor precharge progress. If the input polarity is reversed, the precharge will never complete and the current will be low enough that damage is unlikely.
Or a simple solution is to install an alarm that sounds if the input polarity is reversed.
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If America manages to eliminate obesity, we would save as much fuel as if every American were to stop driving for three days every year. To be slender like Tiffany Yep is to be a real hypermiler...
Allie Moore and I have a combined carbon footprint much smaller than that of one average American...
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