Assignment:
Question 1. A 9 V power supply delivers 2 A to a resistive load. The a.c. supply is 230 V, 50 Hz and a bridge rectifier is used in conjunction with a 0. 047 farad reservoir capacitor.
Estimate:
(a) The peak-to-peak ripple voltage.
(b) The transformer secondary voltage if the total forward voltage
drop in the rectifier is 2 V at 2 A.
Question 2. An aircraft electrical system operates at 115 volts at 400 hertz. It is to supply an average d.c. voltage of 28 volts and an average current of 20 A at a ripple factor of 0.005.
Determine:
a) The r.m.s. ripple voltage.
b) A suitable value of smoothing capacitor.