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13th July 2009, 01:39 AM
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#1 |
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diyAudio Member
Join Date: Feb 2009
  
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please, help me. SMPS for 50A,13.8, with low profit
my SMPS is with 20A in 112vac, and 50A in 14.74VCC
WHAT CAN BE CAUSING THIS LOW PROFIT? |
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13th July 2009, 01:42 AM
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#2 |
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diyAudio Member
Join Date: Feb 2009
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14th July 2009, 06:09 AM
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#3 |
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diyAudio Member
Join Date: Sep 2005
Location: in Slovenia :)
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You are reading something wrong...
Show some waveforms and what is heating or at least something |
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14th July 2009, 07:00 AM
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#4 |
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diyAudio Member
Join Date: Jan 2002
Location: Tyrone Ga. U.S.A.
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Those figures 112v @ 20A (2248w) in and 14.74v @50A (737W)
out simply can't be right! Could you be measuring peak input current? One other question just how hot is that poor bridge rectifier getting? without a big heatsink I doubt it's going to last verry long. |
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