Quote:
Originally Posted by jyanof
Actually, instead of a simple boost stage, what I really want to do is add a PFC stage. It'll act a boost stage and boost any input voltage from 120 to 240AC to ~400VDC, but do so such that there is close to unity power factor.
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What's the advantage for a residential customer to have unity PF (other than bragging rights, which is good enough for me)? I know that industrial customers are billed based on some aggregate of their facility PF, but not residential customers. I've heard arguements that active PFC usually decreases the system efficiency because there's another transistor (or FET or IGBT) dissipating power.