I would like to know if the common-mode voltage shown in the red box of the Fra setup wizard is the output voltage Vout of the DCDC?
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I would like to know if the common-mode voltage shown in the red box of the Fra setup wizard is the output voltage Vout of the DCDC?
Hello ccelh, All assigned engineers are out of office currently. MStokowski will be back in the week of 1/5/2026 to answer your question!
Dear ccelh ,
No, it's the voltage at the FRA device, as the text says. If you have it connected to the output, then it would mean Vout, of course.
Best Regards,
Mathias

I connected to this position. So the common-mode voltage shown in the red box of the Fra setup wizard is the output voltage ,right?
Another question, this is &1. I want to know what its function is? what is different between @1 and &1?

Yes, output voltage is the common mode voltage in your case.
As for the FRA probe ("&1"), please refer to our excellent help that covers this in great detail.
Best Regards,
Mathias