Re: RE: Re:Encoder Velocity Est. - was re:GeckoDriv es.....

John

Wow! This is some outside-the-box thinking!

Keep me (us) posted on your progress. I'm really curious about the
torque/speed profile that you'll get. As open to the air and hardened to
the elements as most are, it should be easy to add low RPM cooling
with a snap disk and muffin fan.

Ray

From: John Craddock <johncrad@...>

>I have this demented idea that I can build up a cheap AC servo from an
>auto alternator by using these chips for electronic commutation using space
>vector modulation that these chips are really designed for. These chips
>have a built in quadrature encoder and 3 phase programmable PWM driver that
>I will use to drive an International Rectifier IRPT1058 power driver
>module.