Re: (ET) (Fwd) Re: Ariens AMP Mower

["David Roden" <etpost drmm net>]

On 14 May 2009 at 12:09, RJ Kanary wrote:

> If someone can dig up more particulars, I'd love to see them. :)

If you mean about the way a controller replaces a transmission, a PWM 
controller is like a DC transformer, converting high voltage and low 
current 
from the battery into low voltage and high current at the motor.  If you 
recall that current => torque and voltage => speed, you can see that it's 
just like changing gear ratios.

The GE controller, being just resistance, can't do this.

You probably knew that already, but maybe some others don't.

> And it REALLY makes me wonder why this project was saddled with a
> power robbing hydrostat ...

Me too.


David Roden - Akron, Ohio, USA

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