Hi Bert, all,
May seem a daft question, though what about current ratings of caps, if
I have an array of caps rated at 800amps each, does the array add up in
amps terms or is it still 800amps regardless of number of caps ? I've
always just assumed they add.....
Cheers,
Chris
----- Original Message ----- From: "Bert Hickman"
<bert.hickman@xxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Friday, August 08, 2008 2:21 PM
Subject: Re: [TCML] ESR ESL figures in caps
Hi Chris,
In theory, when paralleling N capacitors, overall ESR and ESL will be
divided by N (similar to paralleling discrete resistor or inductors).
The capacitance will be multiplied by N. So, the equivalent ESR and
ESL will be the individual ESR and ESL divided by the number you have
in parallel.
However, in practice, what you ACTUALLY obtain will be a function of
your physical layout and interconnection scheme. For reasonably
interconnection schemes, both ESR and ESL will still be significantly
lower than that of a single cap, but not as low as theory predicts.
Bert
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