Advanced PFC and three phase

Dave Zan

New member
I have started to research a power supply to run off 3 phase line.
The obvious way is a 3 phase rectifier followed by a PFC and probably an LLC for transformer step down.
But there are some nice alternatives to the conventional rectifier plus PFC, that combine the rectification and PFC into one, and save on diode losses.
I have seen circuits for this with one phase but not many for three phase except for the so called "Vienna Rectifier" and a circuit by Cuk that looks smart but no one seems to use.
Anyone have any ideas on this?

David
 
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