Other Parts Discussed in Thread: SFRA
Hi everyone and thanks in advance for your help.
I am going to perform an SFRA analysys in a BLPFC board, and was wondering if somebody may explain me a little more about what does the SFRA library do, as the technical documents I have read does not go into this kind of details.
For instance, I have doubts on which kind of signal does the SFRA inject. Is this an step signal with the amplitude of the SFRA1.amplitude variable? is it a sinewave? Any further information about this woudl be appreciated.
Besides, as the input of this board is AC voltage, how does the SFRA block differentiate between the changes introduced at the output by the SFRA block itself, from the changes introducuced by the change in the AC voltage input? Does this mean that I cannot go very low in frequency analysis because both signals would be similar and unable to differentiate? Is it better to make this test with DC input, instead of AC voltage, to avoid the above situation?