PWM motor control from USB I/O board [TANKS]

[dwconn404-at-comcast.net]

One more thing I forgot to mention about the Velleman USB I/O board. The PWM channels operate at 1KHz. I suspect that may be too slow for good pulse width modulation control. For example, my motor controller has an operating maximum of 10Khz, but they don't specify a practical minimum.

 

I'm hoping Joe Somer or another motor control guru can answer this for us. What do you say ? Is 1KHz acceptable for a PWM signal ?

 

          Thanks,

          Doug

> -------------- Original message -------------- 
> From: "Pete Curran" <petesboyz-at-punkass.com> 
>
> > Doug, 
> > Its really a small world, I have the same usb kit, I picked mine up from 
> > www.jaycar.com.au for $69 OZ dollars, I intend to use the PWM via amps 
> > for the motor power circuit with a the TRI PACT for directions. All 
> > operated from the usb experiment board. 
> > Two USB camera's, one wide angle for driving and one zoomable for the 
> > gun, with possible laser range finder. (let the computer control the 
> > elevation of the gun). 
> > But I am a programming numpty, so may try to aquire a copy of your 
> > control program. (what do you drink??) 
> > 
> > Pete "will supply beer for technology) Curran 
> > www.angelfire.com/mech/sherman 
> > 
> > 
> >