RE: Heads Up for Power Supply deal...

Thanks Hans -

I ordered 7 of them for 3 axis (and a spare..). They couldn't tell me how
many more were left after my order, but apparently they had at least 7. I'm
hoping a series connection works; at that price it's worth the risk. I'll
watch out for those grounds!

Carlos Guillermo

> From: hansw <hansw@...>
>
> Hi Carlos,
> Good question, and I think that should be possible.
> It is a switch mode supply, which means it has 100% isolation
> from the input, so that's the first thing solved.
>
> When you do connect in series, you will have one of the power
> supplies (negative) connection effectively at half voltage, and
> only need to make sure you never "ground" it...
>
> Connections would be like this
>
> Positive from Supply #1 become the 36 Volt connection
>
> Negative from Supply #1 never consider this as ground !
> | connect together
> Positive from Supply #2
>
> Negative from Supply #1 becomes the 0V connection
>
> I expect already know all of this. Also remember the negative is
> often also part of the circuit board screw mounting holes, and
> you need to isolate that #1 supply,
> for example mount it on Nylon spacer.
>
> It should work, no reason why it will not.
>
> regards
> Hans Wedemeyer
>
> Carlos Guillermo wrote:
>
> > From: "Carlos Guillermo" <cnk@...>
> >
> > Hans -
> >
> > Any way to double those up effectively for 36V?
> >
> > Carlos Guillermo
> >
> > > -----Original Message-----
> > > From: hansw [mailto:hansw@...]
> > > Sent: Sunday, January 30, 2000 12:53 AM
> > > To: cad
> > > Subject: [CAD_CAM_EDM_DRO]Heads Up for Power Supply deal...
> > >
> > >
> > > From: hansw <hansw@...>
> > >
> > > Just in case someone is looking for a reasonable power supply for
> > > smaller low voltage stepper motors, Jameco has one in the new catalog.
> > >
> > > 18V at 8.5Amps 100-240 AC input $14.95 Part No. 171125 Product No.
> > > LDA150W18 (60 left !)
> > >
> > > hansw