Re: Brushless servo drive - Cheap Solution?????

Brian,

The G298 is a pin-for-pin equivalent of the L298 except for:

(1) On-board current sense resistors (.05 ohm).
(2) Power supply bypass caps (.56uF non-inductive, 100uF/100V lytic).
(3) Full size (TO-220) all n-channel MOSFETs (IR530).
(4) On-board 12VDC supply for MOSFET drivers.
(5) No need for the 8 external hi-speed rectifiers.
(6) Mounting plate.
(7) Modular 2 piece connector (G201 style, 6 position).
(8) 2 by 5 .1" header for the input interface.
(9) 4-layer PCB, surface mounted components.
(10) 18-80VDC supply 7A output per bridge.
(11) TTL input levels.

What's next? Be looking for the super dooper 6 axis black box (G2002)
by the end of this year.

Mariss

--- In CAD_CAM_EDM_DRO@y..., "Brian" <ka1bbg@w...> wrote:
> Gee Whiz, what's next Mariss? soon there wont be a need for a
soldering
> iron, you'll have all the bases covered! will the G298 run bi-polar
and
> unipolar as well? (i am the dummy) cul brian f.
> ----- Original Message -----
> From: "mariss92705" <mariss92705@y...>
> To: <CAD_CAM_EDM_DRO@y...>
> Sent: Friday, April 19, 2002 5:02 PM
> Subject: [CAD_CAM_EDM_DRO] Re: Brushless servo drive - Cheap
Solution?????
>
>
> > Jon,
> >
> > The G420 is step and direction input. Same specs as the G320
> > otherwise.
> >
> > Next in the hopper for new drives is is an evisceration of the
> > step/direction interface which will be replaced with a +/-10V, 0-
5V
> > interface. It will be jumperable for current mode, voltage mode
or IR
> > compensated mode operation. In otherwords, a "classic"
servoamplifier
> > rather than a complete drive. The model numbers have not yet been
> > picked.
> >
> > Mariss
> >
> > --- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:
> > > mariss92705 wrote:
> > >
> > > > Joe,
> > > >
> > > > I get the G420 prototype boards back tomorrow. The G420 will
be a
> > 3-
> > > > phase brushless DC servodrive. The same specs will apply to
it as
> > for
> > > > the G320. I will know by next week if it runs OK.
> > >
> > > Can you give us a refresher on the type of servo drive this is?
> > Does it
> > > take step inputs, or some form of velocity command?
> > >
> > > Jon
> >
> >
> > Addresses:
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> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> >
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reach it if
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> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this
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