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HELLO,
now, I use BLPFC kit.
PFC_BL_ICMD,In assembly, the algorithm of this module is :out = [(VacRect*VinvSqr*Vcmd*VmaxOverVmin)/(Vpfc*VoutMaxOverVinMax*Duty)]*(Vpfc*VoutMaxOverVinMax - Vacrect).
but,
I don't understand the specific principle of the PFC_BL_ICMD:n module,And then I found DPLIB.pdf,as flowing:
However,I found that this is just a block diagram of that algorithm, and I still don't understand how it works.Why is it designed like this?Why do these inputs carry out the reference current?
Please tell the principle of this algorithm.
Looking forward to your reply.
This comes from small signal model of the PFC power stage. This is well known in industry and has been used for many years. Please read related literature on PFC control and you will understand this principle. FYI, I am attaching one of these related docs. Pls review the others.