Tool/software:
hello.
I am writing to ask a question about current sensing.
We are currently conducting experiments at a DC voltage of 100V.
A resistor (100 ohm 1kW) is used on the output side.
As shown in the photo below, we confirmed that the output AC waveform comes out well in phases A, B, and C. (The photo below shows phase A voltage and current measurements.)
However, we confirmed that the sensing values shown in the CCS graph were not accurate.
B-phase and c-phase current flows well, but a-phase current generates a lot of noise, causing noise up to the a-phase voltage.
In my opinion, I think it is a problem on the sensing side because the current and voltage actually come out well without noise.
Can you tell me what is the cause?
-Dongyun
