polyphase bridge output question

Discussion in 'The Projects Forum' started by zorchy, Apr 10, 2007.

  1. zorchy

    Thread Starter New Member

    Apr 10, 2007
    1
    0
    Hello,

    Can you fellow forumites kindly help with this?

    For the drawing below with a resistive load is:

    E.dc.total = E.phase.peak.ac - E.forward*1
    OR
    E.dc.total = (E.phase.peak.ac*SQRT7) - E.forward*1

    WHILE
    I.total = I.phase.rms*7?

    thanks
    Zorchy
     
  2. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
    First formula is the one - peak phase minus diode drop. (Minus whatever is lost due to ripple.) The thermodynamics police show up if you try the second equation.
     
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