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Old 09-04-2012, 02:12 PM   #44 (permalink)
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Originally Posted by TheSGC View Post
It's about the RPMs of the motor and what these little guys can really handle before the brushes spark. I tried 48v and 36 volts with the 3" pulley and 36 volts ran much nicer on the pulley and the A/C compressor was operating, blowing cold air into the hot car.

I am building a small 50 AMP motor controller that will take pack voltage (144v), I'll be making the compact PCB this week.
If you're building a controller why even worry about what voltage to run it at? Just tweak the duty cycle and you're set.
Current project: A better alternator delete
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