Re: [CAD_CAM_EDM_DRO] Re: encoder to stepper

----- Original Message -----
From: "n4onl" <umrk@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, February 19, 2002 6:30 PM
Subject: [CAD_CAM_EDM_DRO] Re: encoder to stepper


> --- In CAD_CAM_EDM_DRO@y..., JanRwl@A... wrote:
> > In a message dated 19-Feb-02 12:42:12 Central Standard Time,
> > snarf@s... writes:
> >
> >
> > > a scematic I saw in an old subscription of MicroComputer Journal
> which
> > > drives steppers directly from an encoder. <<
>
>
> > Yes, but that's only a TINY stepper! The ULN2003 can only sink a
> max. of 500
> > mA when the moon is right! Nuff for a clock, perhaps, but not nuff
> to run a
> > milling-machine, I think!
>
>
> What about driving FETs with the ULN2003?
>
> mike
>
This drawing was only meant as a building block, almost
all drivers start out with low current and then amplify, This as you know
can be done in a million ways. You could drive 10A per Ph with this in the
right circuit.

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