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Why does

  1. Nov 9, 2011 #1
    ..fullwave bridge rectification raise the voltage *1.41? I scanned the net but I can't find an explanation as to why, only that it does..
     
  2. jcsd
  3. Nov 9, 2011 #2
    Remember, ac voltage is really regarding RMS voltage, and hence,
    [tex]\sqrt{2}V_{rms}=V_p[/tex]
    where
    [tex]\sqrt{2}=1.41.......[/tex]
     
  4. Nov 9, 2011 #3
    Aah, so basicly what's going on here is that the secondary ratings on transformers is given in RMS? and not peak?
     
  5. Nov 9, 2011 #4
    That's correct. Also note that a bridge rectifier will have the current passing through two diodes, so the output voltage will be 1.4 volts less than the peak.
     
  6. Nov 9, 2011 #5
    Good! thank you both! the world now makes sense again
     
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