CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] power supply question

on 2000-07-15 07:53:12 UTC
Hi All
Someone commented that this is no problem if the power supplies are not
grounded on the output (INSIDE ) .

This is essential -if two are grounded you will probably short one of them
totally.
- if one is grounded you tie one side of
the suppl y to what you are driving to some possible un wanted voltage
above or below ground - result unpredictable, and almost certainly
unpleasant and expensive.

Jim Gregg

At 09:20 PM 7/14/00 -0400, you wrote:
>This question concerns hooking up power supplies in series for higher
>voltage. I have done that with a pair of 28V supplies and now have 56V.
>This was with 2 identical power supplies. My question is this: can you
>put another supply in series of a different voltage rating? Say, for
>instance, I wanted to get closer to the 75V max voltage of my drives.
>Could I use a 12V to 18V power supply in series with the 2 28V supplies?
>Or do you think that I should stay away from the max voltage running
>these Warner drives with NEMA 42 motors?
>Carey
>

Discussion Thread

Carey L. Culpepper 2000-07-14 18:22:02 UTC power supply question Mariss Freimanis 2000-07-15 00:00:19 UTC Re: power supply question Alison & Jim Gregg 2000-07-15 07:53:12 UTC Re: [CAD_CAM_EDM_DRO] power supply question jrp3@h... 2001-10-27 18:44:56 UTC power supply question Jon Elson 2001-10-27 22:34:56 UTC Re: [CAD_CAM_EDM_DRO] power supply question seanc62@y... 2001-10-27 22:46:22 UTC Re: power supply question cutthroatplasmaco 2005-04-19 10:35:23 UTC power supply question ernie 2005-04-19 10:45:24 UTC Re: [CAD_CAM_EDM_DRO] power supply question Roger Hampson 2005-04-19 10:48:34 UTC RE: [CAD_CAM_EDM_DRO] power supply question Robert Campbell 2005-04-19 11:24:09 UTC Re: [CAD_CAM_EDM_DRO] power supply question turbulatordude 2005-04-19 12:54:24 UTC Re: power supply question - Big Caps curious925072002 2005-04-20 19:43:19 UTC Re: power supply question turbulatordude 2005-04-21 05:31:13 UTC Re: power supply question Monte 2005-04-21 05:56:44 UTC Re: power supply question turbulatordude 2005-04-21 07:23:10 UTC Re: power supply question Monte 2005-04-21 18:05:58 UTC Re: power supply question