Re: Allegro 3977

I am very interested in this subject.
I have ordered my trial chips too
Maybe this resistors fits in our necesities.
http://www.rhopoint.co.uk/components/LORL/lorl.htm
The MV series would be fine.

Best regards

--- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...> wrote:
> Hi,
>
> The sense resistor has to be non-inductive and the "wire element"
> type is an excellent choice.
>
> I would like to caution anyone trying to build a drive with this or
> any other monolithic type power IC to breadboard it on a printed
> circuit board. Do not try to "wire" it up on a perforated
breadboard.
>
> It is essential to have good grounding and supply bypass for it to
> work succesfully.
>
> Mariss
>
> --- In CAD_CAM_EDM_DRO@y..., "ths992001" <thscarince@h...> wrote:
> > Mariss,
> >
> > Ahhh, I didn't realize he was comparing it to a LR drive. I was
> > picturing the L298 w/ those 2 Watt sense resistor.
> >
> > Any thoughts on a good sense resistor for the 3977? The closest
> I've
> > found are these non-inductive "wire element" resistors. But they
> are
> > overkill at 3 Watts. Tried looking at "normal" resistors in
> > paralell, etc. but the available values just don't seem to work
> out...
> >
> > - Tom S.