Rectifier Calculations

1.) Calculations

-Full-wave Rectifier:

 

The average value of DC output voltage at the rectifier output

For full-wave rectifier: Vavg = 2Vp / π

For silicon diode: Vout = Vmax - 0.7V
= Vp

-Bridge Rectifier:

 

The average value of DC output voltage at the rectifier output

For bridge rectifier: Vavg = 2Vp/π

For silicon diodes (2 diodes) = Vout = Vmax - 0.7V - 0.7V

=V max - 1.4V 

=Vp

2.) Diode Rating
Diodes are generally reated by its voltage , current or power.

3.) Peak Inverse Voltage
It is defined as the maximum reverse bias voltage that can be applied to a doide without the diode breaking down.

The PIV across each reverse-biased diode = Vp + 0.7V

4.) Maximum forward Current Rating

It is referred to the maimum current that is allowed to flow through the diode.

5.) Ripple Voltage 

It is the AC variation of the DC output voltage after filtering.