Why Does Fullwave Bridge Rectification Raise Voltage by 1.41?

[rytmenpinne]

..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..

 

[sandy.bridge]

Remember, ac voltage is really regarding RMS voltage, and hence,
\sqrt{2}V_{rms}=V_p
where
\sqrt{2}=1.41...

 

[rytmenpinne]

Aah, so basicly what's going on here is that the secondary ratings on transformers is given in RMS? and not peak?

 

[Jiggy-Ninja]

Aah, so basicly what's going on here is that the secondary ratings on transformers is given in RMS? and not peak?

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.

 

[rytmenpinne]

Good! thank you both! the world now makes sense again