CAD CAM EDM DRO - Yahoo Group Archive

Re: POWER SUPPLIES

on 2002-09-23 06:32:21 UTC
Power supplies are awfully simple.

a transformer, a rectifier and a capacitor. ok, some wires to connect
it all too.

getting the exact transformer to match your exact best voltage may be
difficult. But, getting that exact combination is more luck than
science unless your is burdened with dollar bills.

Many of us on here are off a few volts from perfect. as far as the
volts go, remember that a stepper should be driven with BETWEEN 5 and
20 times the nameplate. that is a huge window. get in the top 25%
and you will see very good results, in the upper 10% excelent results
and withing 1 or 2% and you cannot get any better.

I would venture to guess that the majority of us are withing the 5-
15% window.

$60.00 bux is very good. you can easily spend 4 times that and only
get a few percent improvement.

Dave






--- In CAD_CAM_EDM_DRO@y..., J <jaredts@y...> wrote:
>
> I've gotten some really good advice from this group on how to get
started, but I still need to come up with a power supply. Are the
electrical engineers out there the only ones building their own, or
are there schematics out there for less knowledgeable persons like
myself? One expert has pointed me to a 24v, 8.5amp supply for $60
that should match my planned configuration. That doesn't sound too
expensive, I guess, but I was wondering if there was a cheaper way
(or a surplus source maybe). My internet searches have yielded
unbelievably high prices.
>
> --Jared
>
>
>
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Discussion Thread

J 2002-09-23 04:56:54 UTC POWER SUPPLIES caudlet 2002-09-23 06:11:30 UTC Re: POWER SUPPLIES turbulatordude 2002-09-23 06:32:21 UTC Re: POWER SUPPLIES Tim Goldstein 2002-09-23 09:17:05 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES Peter 2002-09-23 09:19:47 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES J 2002-09-23 11:19:14 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES Tim Goldstein 2002-09-23 11:33:46 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES Randy Gordon-Gilmore 2002-09-23 11:35:58 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES j.guenther 2002-09-23 11:36:45 UTC RE: [CAD_CAM_EDM_DRO] POWER SUPPLIES Jon Elson 2002-09-23 11:38:39 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES Tim Goldstein 2002-09-23 11:45:43 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES kimvellore 2002-09-23 12:29:44 UTC Re: POWER SUPPLIES Tim Goldstein 2002-09-23 12:40:05 UTC Re: [CAD_CAM_EDM_DRO] Re: POWER SUPPLIES j.guenther 2002-09-23 12:43:12 UTC RE: [CAD_CAM_EDM_DRO] Re: POWER SUPPLIES Randy Gordon-Gilmore 2002-09-23 12:45:28 UTC Re: POWER SUPPLIES w.higdon@a... 2002-09-23 13:34:52 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES caudlet 2002-09-23 16:41:44 UTC Re: POWER SUPPLIES JJ 2002-09-23 16:52:25 UTC RE: [CAD_CAM_EDM_DRO] POWER SUPPLIES J 2002-09-23 17:57:37 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES Jon Elson 2002-09-23 21:54:54 UTC Re: [CAD_CAM_EDM_DRO] Re: POWER SUPPLIES Jon Elson 2002-09-23 21:58:50 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES Tim Goldstein 2002-09-23 22:05:53 UTC RE: [CAD_CAM_EDM_DRO] Re: POWER SUPPLIES Larry Edinger 2002-09-24 15:48:27 UTC Re: [CAD_CAM_EDM_DRO] POWER SUPPLIES