Re: Motor Noise?

Hi,
Computer supplies have to filter out line noise. I was
unaware how good they are until recently. Just the fact that
the 120 volt AC line is being switched and dropped to +5 and
+12 without a large transformer is the first miracle. The
second miracle how the switching noise does not come over
through the sound card. Very neat designs, if only Windows
worked as well!

Spike


--- In CAD_CAM_EDM_DRO@y..., "Sven Peter, TAD S.A." <peteryco@r...>
wrote:

>
>
> cncdxf@a... wrote:
>
> > Hi,
> > I found when I used a computer supply to run my controller
> > things got better. My homemade power supply would allow noise
> > from my solder station to get through. A real shocker to see
> > the motors jump when the station is turned on or off. The solder
> > station has a transformer. When the rotory switch is activated
> > several times in a row, my motors would jump. Using a shop vac
> > on the line really caused problems. With the computer supply
> > installed the problem has not shown up. A router really makes
> > line noise. Adding a speed controller has made it show up
> > sooner.
> > Been there had that
>
> Hey that sounds that my year long idea is true and has a second

benefit.

> I preach to my clients to feed the control and drivers from their

machines

> with an UPS to get rid of surges and black outs. Now you tell me
> that you eradicate noise to with it too. Great!
> I like that.
> Sven Peter
>
>
> [Non-text portions of this message have been removed]