Repeat Prob. 3.104 if the rms value of the transformer output voltage vI is 10 V. Simulate the behavior of the full-wave rectifier in Fig. P3.104 for R = 3 Ω and C = 22,000 F. Assume that the rms value of vI is 10.0 V and the frequency is 400 Hz. (Use IS = 10-10 A, RS = 0, and RELTOL = 10-6.) Compare the simulated values of dc output voltage, ripple voltage, and peak diode current to hand calculations. Repeat simulation with RS = 0.25.
Problem 3.104
Simulate the AM demodulator in the EIA on page 122. Compare the spectra of the voltages across the two capacitors. The full-wave rectifier in Fig. P3.104 is operating at a frequency of 60 Hz, and the rms value of the transformer output voltage is 18 V.
(a) What is the value of the dc output voltage if the diode voltage drop is 1 V?
(b) What is the minimum value of C required to maintain the ripple voltage to less than 0.25 V if R = 0.5 Ω?
(c) What is the PIV rating of the diode in this circuit?
(d) What is the surge current when power is first applied?
(e) What is the amplitude of the repetitive current in the diode?
