Problem 62-4    Source:  Problem elaborated by the author of the site.

It is necessary to design a half-wave rectifier that has an output voltage V_DC = 24 V, the load consuming an average current I_DC = 0.8 A and that the ripple factor does not exceed r_pp = 7% Determine:

a) the value of the filter capacitor.

b) the transformer secondary voltage value.

c) what is the power dissipated in the load (R_L) connected to the rectifier output.

Solution of the Problem 62-4   

Item a   

As the values of V_DC and I_DC were provided, then we can calculate the value of R_L. So

We know that r_pp = 0.07 and using the eq. 62-13, we can calculate C, or

Item b   

Item c