Re: [CAD_CAM_EDM_DRO] MPJA 24v 10amp Transformers - Anyone actually using it?

Hi Shawn,
yes, I've used this transformer on the hobbycnc machine. The
unloaded voltage is at least 34vdc, which I thought was perilously
close to the max voltage for the drivers (35v), so I have a switch on
the primary, and start on the 220v tap, which precharges the big
capacitor to about 17v, and allows a low-heat dry run. Then when
full power is needed, I switch to the 110v tap, with the drivers
already on. With the coils loading the cap, the voltage doesn't rise
above 34v, so I feel this is safer. It looks like a good quality
transformer, 10amps is enough for me, and the price is good!
Regards, Paul

On 15 May 2003, at 22:17, shawnusa2002 wrote:

> I was wanting to know if anyone has built and using the Trnasformers
> sold by MPJA ((2) 24v 10amp #7846)in the series configuration like
> shown in Jerries schematic in the files section. I have read
> numorous postings on here from past and got lost in finding out if
> anyone actually built one and is using it with the Geckos. Did the
> final product actually exceed the voltage limits of the Gecko's?
>
> Comments please. What end results did you get? Are you pleased with
> the results? I'm getting ready to make the plunge and buy the parts
> for this schematic.
>
> Aside from this anyone have a good source otherwise for a Transfomer
> that will produce +/-60vdc 5-10amp as a alternative to going the
> series conecttion rought.
>
> Appricate to commentary.
>
> Shawn
>
>
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Paul Beckingham