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31st December 2008, 10:20 AM
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#1 |
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diyAudio Member
Join Date: Oct 2007
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ac side active PFC
has anyone experience with this concept as described in
http://www.mitsubishichips.com/Japan...pdf/Paper5.pdf the idea of an AC inductor, and reduced losses as the PFC stage is integrated into the rectification bridge looks attractive to me .. |
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7th January 2009, 06:58 PM
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#2 |
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diyAudio Member
Join Date: Oct 2008
Location: Plano, TX, USA
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A bit... ST has a app note for a bridgeless PFC on their web site.
The problem is the this is incredable noisy from an EMI standpoint. We eventually gave up trying to use the topology. I may try it again sometime but for now, Diodes are still too cheap. Tony |
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