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That is a dc-dc converter, not an ac-dc converter, therefore, there is no need for PFC
About the chokes, please look at the input side. there are three chokes
two upright chokes which are used for conventional EMI filters
and a recumbent choke right after the input port ( what is the role of this choke?)
about the digram, I am certain there is a PSFB converter which suggested by TI
But I don't know why Tesla uses a boost interleaved converter before the PSFB...
For what purposes...
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