Re: [CAD_CAM_EDM_DRO] What size capacitor should I use?

You can use multiple caps in parallel if needed.


-----Original Message-----
From: R Rogers <rogersmach@...>
To: CAD_CAM_EDM_DRO@yahoogroups.com <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wed Jan 26 09:56:14 2005
Subject: Re: [CAD_CAM_EDM_DRO] What size capacitor should I use?




"A. G. Eckstein" <a_eckstein@...> wrote:

Rick,

Mariss has a formula that is conservative, and WORKS:

C=80000 x I/E where C is in microFarads, I is in Amps, and E is in Volts

So in your case, I would look at 80000*12/70 or 13714µF and round up to the
next highest value with a voltage rating of at least 100V

/// Is this per drive though? I have servos and I'm using 3-100 volt caps at 15,000 uF each. Marriss said I needed one rated at 100 volt and 45k uF Which is very difficult to find. Does anyone know where a Cap that size can be purchased? Or close to it?

Ron




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