Re: current rating of transformers

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Andy Wander <awander@v...>
wrote:

> Jon:
>
> Yes, I did misinterpret what you were saying-it sounded to me like

the specs

> that were quoted from the MPJA catalog were saying that you

couldn't use the

> full current rating of the transformer, and that you were agreeing

with

> that. Or maybe you are thinking that the transformer is rated at

10A only IF

> you use the center tap for building a power supply?
>
> Sorry about the misunderstanding.
>
> I still want to see that cartalog page; I swear it sounds like the

numbers

> quoted awere related to SIZING of the cap or coil, and NOT the

actual output

> current capability.
>
> I may have to dig up my MPJA catalog......

It is only in print on the catalogue and the guy at MPJA said they
quoted it from the suppliers pages.


I started thinking more about it.

24VAC to DC to cap to 33 volts DC for 240 watts. Theoreticaly, it is
now around 7 amps at 33 volts for 240 watts

24 VAC to DC to inductor to 24 VDC for 240 watts.

With the cap, you have an increase in voltage and a subsquent loss of
current if only from the watts standpoint.

Factor in the innefficiences of the transformer and the cap and you
don't loose all at much more.

Dave