Average Load Voltage and Current

As rectifiers are utilized to convert ac to dc, V_ave is a very significant value. For a half wave rectifier,  V_ave is determined as

                                                            V_ave = V_pk/π

            Another form of this equation will be

                                                V_ave = 0.318(V_pk) (half wave rectified)

            Here 0.318 = 1/π. either of these equations may be used to find the dc correspondent load voltage for a half wave rectifier. Let's take some instance to demonstrate this

EXAMPLE:     Calculate the value of V_ave for the circuit indicated in diagram.

SOLUTION:

                                                V₁(PK) = V₁(rms)/0.707

                                                            = 75V_ac/0.707    //putting value

                                                 V₁(PK)  = 106.1 V_pk

                                                V₂(pk)  = N₂/N₁ =1/2(106.1)

                                                  V₂(pk)  = 53.04V_pk

                                                V_L(pk)  = 53.04 - 0.7

                                                  V_L(pk)   = 52.34V_pk

                                                                V_ave = V_pk/π

                                                            = 52.34 /π

                                                   V_ave = 16.66 V_dc