Re: [TCML] Primary Capacitor??

[Bayley Wang <wang9xb17@xxxxxxxxx>]

2KVA is still well within the realm of an MMC, though.
The Geek Group chart recommends 4x11-cap strings of CDE942's, which is quite
a reasonable number.
An MMC *will* work, whereas the pulse cap you linked to may have the wrong
sort of dielectric.
 On Feb 15, 2011 10:22 AM, "jimlux" <jimlux@xxxxxxxxxxxxx> wrote:
> On 2/15/11 6:21 AM, Bayley Wang wrote:
>> It's sort of been agreed on that an MMC is the way to go. Not all pulse
>> capacitors are rated for high-frequency, high-reprate, high-reversal
>> operation.
>>
>
>
> kind of depends on the size of the power supply. At a certain point,
> the pulse cap is cheaper than the MMC, especially if you are counting
> the value of time to assemble dozens of caps into an MMC.
>
> There are standard derating equations that Maxwell Labs (among others)
> publish to help you figure out what the revised ratings are for a cap
> being used in a manner other than it was designed.
> http://home.earthlink.net/~jimlux/hv/caplife.htm has some examples
>
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