3. A full-wave rectifier is driven by a sinusoidal input Vin = Vocost, where Vo = 3V and =2(60Hz). Assuming VD,on = 800mV, determine the

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.

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