Sujet : Re: Cap C-V test
De : jl (at) *nospam* glen--canyon.com (john larkin)
Groupes : sci.electronics.designDate : 05. May 2025, 15:00:44
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <j0hh1kdqpr7qee8b9eqil5lude9no938fl@4ax.com>
References : 1 2 3 4
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On Mon, 5 May 2025 07:54:27 -0400, "Tom Del Rosso"
<
fizzbintuesday@that-google-mail-domain.com> wrote:
Chris Jones wrote:
On 5/05/2025 9:20 pm, Tom Del Rosso wrote:
john larkin wrote:
https://www.dropbox.com/scl/fi/a7425c69k3w8wx8tqjpq5/X110_CV_Test.jpg?rlkey=pc3c0b12ncswv6ajrn148stdk&raw=1
>
>
The DUT is a Venkel 2.2 uF 100v 1812-size ceramic cap. I need to run
it at 48 volts. 0.8 uF is probably OK. I have room on my board so I
guess I'll add another cap in parallel.
>
My AADE cap meter was behaving strangely here, so I measured C by
noting the -3 dB frequency driving the cap from a 50 ohm sine wave
generator.
>
Do inductors vary with current as well? I would guess only a little
bit.
>
Yes.
http://www.vk2zay.net/article/200
>
With saturation, yes, but what about the usable range?
Self-heating will change inductance a little, numbers like 100 PPM/K.
Cap C-V test
Re: Cap C-V test