Re: More power supply questions...

17000 mfd at 75V is about perfect for the caps I need too. Mind
sharing the surplus source for those?

--- In CAD_CAM_EDM_DRO@y..., "Tom Murray" <thomasm923@a...> wrote:
> My Taig mill is ordered, and one of the things that I have to do
> while I wait the 6 to 8 weeks for delivery is make a power supply.
>
> There's a few things that I'd like to ask the group to get me
> started...
>
> First, I am wondering if my choice of caps is correct. I will be
> using a 30 volt transformer to supply power to three 24 volt servos
> rated at 6 amps peak. I doubt that it will ever need to supply more
> than 12 amps at once, if that much, but let's assume that the
maximum
> current is 15 amps. I am looking at some surplus capacitors rated
at
> 17,000 MFD, 75 VDC. Would a pair of these in parallel be sufficient?
>
> Second, I wonder if it is ok to attach a smaller transformer to the
> same AC input that is hooked up to the main transformer to supply 5
> volts to the Geckos?
>
> Third, how does one calculate the rating of the fuse that is
needed?
> I assume that it should be a slow-blow type, but what would the
> correct amperage rating be ?
>
> Thanks,
> Tom Murray