Re: [CAD_CAM_EDM_DRO] Re: estimating current of a per supply

Markwayne wrote:

>The cross sectional area of the core is the limiting factor as to how
>mush flux at saturation the xfmr can handle. The "core" is only the bit
> in the center that passes thru the windings. An area of say two sq.
>in. is about a 100 watt and 3 sqin about 250 watt and 4 sqin 500 watt.
>

This relationship ought to be linear. Also, to keep the ID of the
winding from
getting too small, the center "leg" often has more area that the sum of
the two
outer legs. So, measuring an outer leg and doubling it is both easier and
may be more accurate.

>This does not consider the duty cycle the rest of the xfmr is designed
>for. Xfmers designed to be saturated continuous duty you can boil water
>on. Weight is a good indicator as well, and some where I have a chart....
>
>

Yes, knowing the design standards the transformer was made to can affect
these calculations.

Jon