CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Sizing a power supply

Posted by Jon Elson
on 2000-06-13 12:14:37 UTC
ptengin@... wrote:

> Jon E.,
> I am running three Applied Motion Products 7080 drives in 1/2 step
> mode.
> I have them connected to an old Northern Telecom 48 volt 40 amp
> supply. I am
> now happy with this setup and was amazed at the improvement in
> performanace
> of the motors when I went from 3-36 volt 10 amps PS's. Since my drives
> are
> rated at 7 amps at 80 volts, I'm interested in building a higher
> voltage PS
> like Jon A. I was thinking of using a 2? KVA buck/boost transformer.
> I'd
> connect 120 volts to the "240 in" terminals. The "120" out would have
> approximately 60 volts out.

That's about 60 V *RMS*.

> Run this through a large bridge rectifier and on
> to large filter caps with bleed resistors. Would this be a workable
> design?
> I'm not real sure what the resultant output voltage would be.

It would be approximately 1.414 * 60 = 85 Volts.

> I thought it
> was somthing like 60 times the square root of 2? I think one could
> vary the
> output voltage slightly if the transformer has 208,220,240 and 277V
> inputs
> taps. An electrical designer I ain't.

Yes, if you have a transformer with the adjustment taps, then you are
set. Otherwise, you
could use a 208/220 volt autotransformer in front of the isolation
transformer to vary
the output voltage.

Jon

Discussion Thread

Carey L. Culpepper 2000-06-12 13:25:44 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Carey L. Culpepper 2000-06-12 13:34:08 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Ron Ginger 2000-06-12 13:55:32 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Carey L. Culpepper 2000-06-12 13:56:30 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Jon Elson 2000-06-12 14:33:16 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Jon Elson 2000-06-12 14:39:22 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Carey L. Culpepper 2000-06-12 15:02:29 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Jon Anderson 2000-06-12 15:15:46 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Carey L. Culpepper 2000-06-12 15:46:53 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Carey L. Culpepper 2000-06-12 15:57:58 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Jon Anderson 2000-06-12 16:01:22 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply JanRwl@A... 2000-06-12 19:34:48 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply JanRwl@A... 2000-06-12 19:39:30 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Jon Elson 2000-06-12 23:23:55 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Jon Elson 2000-06-12 23:39:31 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Jon Elson 2000-06-12 23:39:32 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply ptengin@a... 2000-06-13 02:25:51 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Stan Stocker 2000-06-13 09:20:08 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply Jon Elson 2000-06-13 12:14:37 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply ptengin@a... 2000-06-13 13:01:36 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply JanRwl@A... 2000-06-13 20:22:29 UTC Re: [CAD_CAM_EDM_DRO] Sizing a power supply KM6VV@a... 2000-06-20 20:49:05 UTC Re: Sizing a power supply