HALF WAVE RECTIFIER

HALF WAVE RECTIFIER:

  Half wave rectifier is used to convert AC to DC. In half wave rectifier we use only on diode for rectification.Which gives high amount of ripple factor and only conduct either negative voltage or positive. it operate only one direction current due to use of only one diode.

CONSTRUCTION:

Half wave rectifier

The signal of input and output shown in fig.

Half wave rectifier

DERIVATION:

  First of all when we convert the AC to DC there should be a Vdc or Vavg to find Vavg we have

Half wave rectifier

                         

                                       (2)    Vp (out) = Vavg - 0.7

And 

                                       (3)     Peak inverse voltage = VIP

`                                                   VIP = Vp (in)

Numeric 1:

   What is the average value of half wave rectifier voltage?

Data:

            Peak voltage = Vp= 50V

            Pie = π =3.14

                  Vavg =Vdc =?

Solution:

                 Vavg= Vp/π

                 Vavg = 50/3.14

                          = 15.92V