Re: POWER SUPPLIES

Just inquisitive, the specs of the power supply says 1% regulation so
why add extra caps at the output?. It should have enough inside the
supply itself to work if operated within the specs. Unless you have
long wires to the load and have a voltage drop due to wire resistance.
Anyone have a good explanation for it?
Kim


--- In CAD_CAM_EDM_DRO@y..., Randy Gordon-Gilmore <zephyrus@r...>
wrote:

> At 11:19 AM 9/23/2002 -0700, J wrote:
>
> >in question, it is a switching power supply (rats!). Here's the

url if

> anyone wants >to look at it:
> http://www.mpja.com/product.asp?product=12613+PS
>
> Jared, I'm using this power supply with the Camtronics 2A driver

board kit

> and Sherline's Size 23 stepper motors. It works fine. I have a 5-

6000

> mfd cap on the output (unit is at home and I'm not, or I'd give you

an

> exact number.)
>
> Where I work we use stepper motors with chopper drives in various

products

> (admittedly mostly Size 17 motors) and don't have a linear supply

in any

> of them. I asked our head EE about the linear vs switching power

supply

> thing a while back, and he said that the motor will not know the
> difference.
>
> Best regards,
>
> Randy
>
> Randy Gordon-Gilmore ,----.___________ ______________

_________________

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