Re: loking for help with power supply for rutex drives...

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Dave Fisher" <dave@d...>
wrote:

> We use the Rutex drives - Power supply can be very simple - just a

straight

> isolation transformer with an AC voltage output of say 70 Volts.

Couple this to a

> full wave silicon bridge rectifier and electrolytic capacitor rated

at 8.000 to 10,000uf at

> 100 Volt working voltage. This should do the trick - Loads of

circuits on the web for a

> simple supply - email me if you dont have any luck and I will draw

one for you.

>
> Couple of other comments, you may want to include a mains filter on

the input

> side of the transformer - this would protect against any short

spikes etc on the mains.

>
> Use good quality caps with a high ripple current ripple rateing
>
> You may get away with a single mains transformer to drive all 3

amps - as long as you

> allow for a good current rateing, which should probably be rated at

20 Amps.

>
> Good luck
>
> Dave Fisher
>
>

I am also a newbie here (long time lurker). My question is about the
mains filter mentioned above. Are we talking a capacitor, or is it an
actual item that can be bought. How would I determine the size I
needed? Any other info about this would be great. I thought I was all
ready to start building my supply. DOH! I am also retrofitting a
Bridgeport clone (Tree).