Re: Cap C-V test

On 5/5/25 13:20, Tom Del Rosso wrote:

john larkin wrote:

https://www.dropbox.com/scl/fi/a7425c69k3w8wx8tqjpq5/X110_CV_Test.jpg?rlkey=pc3c0b12ncswv6ajrn148stdk&raw=1
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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.
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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.

If they have magnetic cores, yes! In some conditions even hugely.
Jeroen Belleman