RE: EDM

Mo,

Yes, I set them up as 4 pair in series and then the sets in parallel.

Don't think this even gets me close to being an electronics expert. I just
had someone that knows what they are doing point me to a good reference
source!!


Tim
[Denver, CO]

> -----Original Message-----
> From: Mo [mailto:mo@...]
> Sent: Sunday, July 18, 1999 3:41 PM
> To: CAD_CAM_EDM_DRO@onelist.com
> Subject: Re: [CAD_CAM_EDM_DRO] EDM
>
>
> From: "Mo" <mo@...>
>
> > Resistor network 8 - 13 ohm 50 watt wired up to yield 6.5 ohm
> 400 watt (if
> I
> > figured right)
> Tim, I am sure you wired them up as 4 pairs (each pair in series) and then
> put those 4 pairs in parallel.
> That was a neat move because assuming the electrode / workpiece
> contact as a
> dead short you draw 7.5A which is a good setting for your supply.
> That current splits out 4 ways into each pair of resistors so each pair
> passes about 1.8A so each resistor will pass 1.8A so will be driving 44W
> which is a good level for the 50W rating.......if that is what you
> calculated, that was slick and you now qualify as one of the resident
> electronics advisors on this list ...any chance of getting you to design a
> Servo-to-Go clone :)
> Mo