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Old 5th January 2008, 07:01 PM   (permalink)
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That may in fact shed some light on the problem and the solution.
Papabravo is offline  
Old 11th January 2008, 03:59 AM   (permalink)
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But i dont even know what ICs to use for my rectifier circuit with power factor correction.
Anyone knows which IC i should use?
i saw a few demo circuits but those circuits are for single phase power factor correction.
i am just wondering how can I use it for 3 phase ac systems.

Thank you everyone
yuchween is offline  
Old 11th January 2008, 04:45 AM   (permalink)
Default 3 phase PFC

Yuchween,

Try the NCP1653.
For a 3 phase system you will need three.
220 two wire = one PFC.
220 three wire + ground = 3 PFC

Here is a way to use only 2 PFC for three-phase. I never tried it.
http://enjeti.tamu.edu/journal-paper...fc-modules.pdf
ronsimpson is offline  
Old 16th January 2008, 12:31 PM   (permalink)
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thanks a lot ronsimpson
i think i will have to read up on that
yuchween is offline  
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