Re: Power supply Question?

First, the offered design is good for most applications, more
regulation, over current and such on the incomming side is find.
lots of people use switching power supplies.

Check the capacitor selection for the Geckos. depending on voltages,
the cap requirements can get pretty big. I would check the output
ripple and adjust accordingly. also, the 470 on the input termial
would be benneficial.

individual power supplies will work, but you actually lose some
benefit of the larger caps. since not all motors move all at the
same time, the larger single cap is better utilized.

Dave



--- In CAD_CAM_EDM_DRO@yahoogroups.com, "fortino tan"
<fortino_tan@h...> wrote:

>
>
> Hi,
>
> I have seen the power supply design for Gecko drive. It is a simple
> unregulated power supply with transformer,bridge rectifier,caps and

bleeding

> resistor. There is no over voltage, over current, or over

temperature

> protection whatsoever. Well, I live in third world country when the
> electricity is up and down like roller coaster.
>
> My question is:
>
> 1.Does unregulated power supply hurts the gecko drive when the

voltage in

> primary winding is not stable?
>
> 2. Will the use of switching power supply with over voltage, over

current,

> and over temperature plus 15,000 Uf cap perform better to protect

the gecko

> drive?
>
> 3. Will separate power supply for each axis perform better than

single power

> supply for all 2,3, or 4 axes?
>
> thanks you.
>
> fortino
>
>
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