Re: [CAD_CAM_EDM_DRO] capacitors in parallel

In a message dated 7/21/2003 10:44:36 AM Central Standard Time,
davemucha@... writes:

> 5 caps, 20,000uF at 20 volts each. wired in parallel.
>
> Am I looking for trouble ? or should I go for a single 20kuF at 100
> volts although it is much larger?
>

Dave! This would result in 100,000 uF at 20 volts! If you wanted a 100
volt "WVDC" rating, you would have to string these in SERIES, with
"voltage-distribution resistors" across EACH capacitor, and you would then have only 4000
uF capacitance!

It is "inefficient" so far as TOTAL SIZE goes, to wire "smaller" capacitors
together in any series/parallel combination(s). If you want 100,000 uF @ 100
VDC, sorry, but you gotta pull out the wallet and BUY one!

Jan Rowland


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