Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: "Tom Del Rosso" <fizzbintuesday@that-google-mail-domain.com>
Newsgroups: sci.electronics.design
Subject: Re: Cap C-V test
Date: Mon, 5 May 2025 07:20:10 -0400
Organization: A noiseless patient Spider
Lines: 19
Message-ID: <vva6u9$c2lp$1@dont-email.me>
References: <sik71k9uvbqacp964bvlc5317ga12gu9al@4ax.com>
Injection-Date: Mon, 05 May 2025 13:20:42 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="f92fc8480a4aacc726b7f8dd095a03c0";
	logging-data="395961"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/I587ifcFIeyR6AGy+/VfVYDogzN1vXL4="
Cancel-Lock: sha1:D5XlXtJDT3cz1R9KrG4c38NcqeE=
X-RFC2646: Format=Flowed; Original
X-MSMail-Priority: Normal
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157
X-Newsreader: Microsoft Outlook Express 6.00.2900.5931
X-Priority: 3

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.


-- 
Defund the Thought Police