[TCML] ESR ESL figures in caps
list at future-technologies.co.uk
Sun Aug 24 16:23:44 MDT 2008
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.....
> ----- Original Message -----
> From: "Bert Hickman" <bert.hickman at aquila.net>
> To: "Tesla Coil Mailing List" <tesla at pupman.com>
> 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.
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