Homebrew PCBs

Hans -

You're right - $18 is still a good price.

What do you plan to use for the 5 amp output stage?

Regards,
Tony

At 12:57 12/06/2002 -0500, you wrote:
>Tony,
>I agree, the L298N has an absolute Max V or 50... That doe snot mean it
>will work at 50V all day everyday !
>http://www.futurlec.com/StepperMotorController.html
>However even though they are liberal with interpretation of the spec's.
>for $18.00 it is a very good price.
>
>This fall I'm planning to re-do my design and will make it a 5 Amp
>output stage and include my  "Smart Current Monitor" and RPM meter in
>the same design.
>
>for $18.. it's s steal... but keep the Voltage at 35-40V and expect the
>current to be about 2Amps.
>
>Hans W
>
>
>Tony Jeffree wrote:
>
> >  At 07:56 12/06/2002 -0700, you wrote:
> > >I also saw a link for:
> > http://www.futurlec.com/StepperMotorController.html
> > >which are 4A bipolar stepper drivers for only $18 ea. I haven't used
> > them,
> > >so can't comment on their capabilities. You should be able to use
> > your
> > >unipolar motors in a bipolar fashion.
> >
> > I believe the spec of this board to be a little misleading - the L298
> > (which this board uses as its output stage) is rated at 2A/phase
> > continuous. You won't be able to drive a 4A/phase motor with this!
> > Also,
> > you would be well advised to keep the voltage below 50V.
> >
> > Check the L298 spec sheets out on the SGS Thompson site:
> >
> > http://us.st.com/stonline/index.shtml
> >
> > Use the product search on "L298" to find the datasheets.
> >
> >
> > Regards,
> > Tony
> >
> >
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Regards,
Tony