Question

The center tapped full wave single phase rectifier circuit uses 2 diodes as shown below.



The rms voltage across each diode is ________V.

Answer 1

The waveform of voltage across diode,

$V_m=V_{rms}\sqrt{2}$
$V_m=230\times \sqrt{2}=325.269V$

Peak value of waveform shown above is
$2.V_m=2\times 325.269$
$=650.538V$

The rms value of the wave form shown above is,
$V_{D1,rms}=\left(\frac{peakvalue}{\sqrt{2}}\right)\times \sqrt{\frac{\pi }{2\pi }}=\frac{650.538}{\sqrt{2}\times \sqrt{2}}=325.27V$