Re: Power supply transformer setup questions...Capacitors

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Lloyd Leung" <lloyd@l...>
wrote:

> Jan,
>
> That is VDC from the power supply?
> Current (I) is the amperage sum of the motors * 2/3rds?
>
> From what I read of the power supply pdf on geckodrives.com, that

is what I

> inferred.
>

I figure caps on the total motor amps, not the amps at voltage. but
it sure would make a big difference !

It would be based on motor current in some manner, not the total of
the power supply.

Dave

>
>
> -----Original Message-----
> From: JanRwl@A... [mailto:JanRwl@A...]
> Sent: September 10, 2003 10:14 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: Re: Re: Power supply transformer setup

questions...Capacitors

>
> In a message dated 9/10/2003 8:47:13 PM Central Standard Time,
> davemucha@j... writes:
>
> > (C= (80,000 * I) / V)). C is the value in microfarads, I is

the

> current
> > and V is the voltage.
>
>
> A fair question. This formula came from Mariss, as I recall, and

HE is a

> sage. KNOWS his [stuff]. Me, I are a ignernt slob who only

guesses "oh,

> around
> 1000 µF per amp", ignoring voltage, except for "working volts" of

cap.

>
> But "V" in that formula with 80,000, I, and V is for POWER-SUPPLY

volts, NOT

>
> motor-volts. I think.