| Ahhh Gerald I hate to tell you this but you are still feeding 24 volts to that motor... All a PWM Pulsed Width Modulation controller dose is chop the input supply voltage into zero voltage to supply voltage in spikes. All they do is control the on and off times of the SCR in the unit. The meter you are using may say you are only feeding 12 volts to the motor, but the fact is you are feeding 24 volts. When I was working on systems like this I had to get a very costly Fluke DVOM meter that would read the true voltage and frequency of the system, most meters only read the average. Yes you may have a DVOM meter but unless it's designed to read peak voltage it's still only reads average voltage. I found this out the hard way by killing a slowly dieing control board that cost 500 dollar to replace. Just so you know I'm not knocking your system, it's working for you and doing it's job. I am pointing out the misinformation in your statement. I also know a couple of guys that are running 96 volt shunt wound motors in their cars on 144 or higher volt systems. But they do tend to eat up the brushes faster then guys using the 144 volt motors. femm --- On Thu, 10/6/11, false <gsblackard@yahoo.com> wrote:
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