Re: [CAD_CAM_EDM_DRO] Re: L297 and L298

20 K Hz is a good starting point as it helps to keep any motor noise
generated by the chopper action above the audio range.

Regards,
Tony

At 00:03 25/10/2003 +0000, you wrote:

>I used 22K and 3.3nf for the one I built. That works out to be
>almost 20Khz. 1/.7RC is the formula given in the datasheet.
>
>Jim
>
>--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Bard"
><rubens.bardelli@p...> wrote:
> > Hi all
> >
> > I need to build a Stepper Motor Driver. I will make a circuit
>with L297 and
> > L298. I read the datasheet but I dont know how many Hz I have to
>use in
> > Chopper. Can anyone help me with this circuit???
> >
> >
> > []'s
> >
> > Bard
> >
> > [Non-text portions of this message have been removed]
>
>
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Regards,
Tony