Measure capacitor for ESL and ESR and C over frequency

[Faringdon]

Hi,
Whats the cheapest equipment to get this measurement done? (LTspice and PNG attached).....capacitor is electrolytic of 470uf, 50v, and also we need  it for MLCC of 10uf, 50v, x7r.

As you know, we find the frequency of the "valley"....then at that point, 1/wC = wL.
-From this we can work out the ESL , since capacitance does not change with frequency.

[tggzzz]

Hi,
Whats the cheapest equipment to get this measurement done? (LTspice and PNG attached).....capacitor is electrolytic of 470uf, 50v, and also we need  it for MLCC of 10uf, 50v, x7r.

As you know, we find the frequency of the "valley"....then at that point, 1/wC = wL.
-From this we can work out the ESL , since capacitance does not change with frequency.

Signal generator and AC voltmeter, or oscilloscope.

If your company doesn't have those, then "we" should find another company to work for.

If your company also possesses a power supply, then you could - and should - also measure the parameters as a function of DC bias.

BTW, your schematic doesn't match your description, and it is conventional to have the signals flowing from left to right.

[Faringdon]

Thanks, the El Cap that we need ESL and ESR for, at 450khz, is...

EDH477M050S9SAA
https://www.mouser.co.uk/datasheet/2/447/KEM_A4049_EDH-3316662.pdf

Also, need ESL and ESR  for a 10uF, 50V, 1210, X7R   MLCC

[tggzzz]

Thanks, the El Cap that we need ESL and ESR for, at 450khz, is...

EDH477M050S9SAA
https://www.mouser.co.uk/datasheet/2/447/KEM_A4049_EDH-3316662.pdf

Also, need ESL and ESR  for a 10uF, 50V, 1210, X7R   MLCC

Bully for you.

RTFM.

If the FM doesn't tell you, choose another capacitor.

[RolandK]

These electrolytics are not specified for 450 kHz (as all electrolytics i am aware of), so don't use it there professionally, just measure for your personal enlightment.

What is your application?

[Faringdon]

Thanks yes i appreciate its not for 450khz...but can still damp a LC filter that uses MLCCs.
We want to be absolutely sure that a very low amount of the 450khz ripple will flow in it.

[tggzzz]

Thanks yes i appreciate its not for 450khz...but can still damp a LC filter that uses MLCCs.
We want to be absolutely sure that a very low amount of the 450khz ripple will flow in it.

Yes, a "a very low amount" will flow.

Next question.

[Faringdon]

Hi,
is there any way to get round the software installation on the Bode 100?...none of our work laptops have the Bode 100 software, and we dont have admin rights to load it on.
Is it totally unuseable without the software that comes with it?

I mean, like with LTspice i can use it without admin rights.

[ebastler]

none of our work laptops have the Bode 100 software, and we dont have admin rights to load it on.
Is it totally unuseable without the software that comes with it?

Umm -- ask an IT admin to install the software for you? Or ask whether there is a computer stowed away somewhere in the company which has the software already installed? They presumably bought the Bode 100 VNA at some point in order to actually use it...

If it is this device, which has no hardware controls at all, I don't see how you would use it without the PC software. Well, it would probably make a decent door stop, or you could use it to position your monitor or oscilloscope a bit higher.