3. A full-wave rectifier is driven by a sinusoidal input Vin = Vocost, where Vo = 3V...
Question:
3. A full-wave rectifier is driven by a sinusoidal input Vin = Vocosωt, where Vo = 3V and ω=2π(60Hz). Assuming VD,on = 800mV, determine the ripple amplitude with a 1000 microfarads smoothing capacitor and a load resistance of 30Ω.
4. In Fig. 3 below, we estimate the ripple seen by the load so as to appreciate the regulation provided by the diodes. The diode bridge is a full-wave rectifier. The frequency fin of at the input of diode bridge is 60Hz, C1 = 100microfarads, R1 = 1kΩ, and the peak voltage produced by the transformer is 5V.
(a) Assume R1 carries a relatively constant current and VD,on = 0.8V, estimate the ripple amplitude across C1.
(b) Using the small-signal model of the diodes, determine the ripple amplitude across the load.
Electronic Devices and Circuit Theory
ISBN: 978-0135026496
10th edition
Authors: Robert L. Boylestad, Louis Nashelsky