Re: [CAD_CAM_EDM_DRO] Re: resistor for power supply

In a message dated 10-Dec-01 20:59:19 Central Standard Time,
cadcamcenter@... writes:

> BTW it seems that 15,000 uF is too large for the requirement (3 2Amp
> steppers) and one can do with much smaller cap. In fact I have seen a
> 3-axes driver where the capacitor (physical size, don't know about
> uF) was 10% of that 15,000uF cap on mine.

ONE rule of thumb I have heard often (and which works OK for me) is 1000 uF
per amp of loading current. Thus, 15,000 might be good for up to 15 amps, if
regulation is not too terribly persnickety.


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