Home made DC-Link

Discussion in 'The Projects Forum' started by Squirrelnutmofia, Apr 19, 2013.

  1. Squirrelnutmofia

    Thread Starter New Member

    Apr 19, 2013
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    I am creating a DC-Link for a school project and i came across something that defys what i know of capacitors. My input AC voltage is 10v across a full wave bridge rectifier. I have a Capacitor in parallel to half of the rectifier before it is also in parallel to an inverter, yet the voltage across this capacitor is 14V. I thought they would only charge to the input voltage and not any further. Why is the voltage 4v more than the input and how is that possible?????
     
  2. MrChips

    Moderator

    Oct 2, 2009
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    10VAC usually means 10V rms (root mean square).
    Multiply by 1.4 to get peak value.
     
  3. Squirrelnutmofia

    Thread Starter New Member

    Apr 19, 2013
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    crap.... i knew there was something i was forgetting. Thank you! Is there a topic i can look up that will refresh me on the whole RMS peak value, since i lost my class notes for that day? *tried looking up RMS but didnt find many good results. I vaguely remember there was another value we got from a second equation.
     
  4. crutschow

    Expert

    Mar 14, 2008
    13,024
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