3.(a) Draw a transfer function curve (Vo vs. Vi ) for the following circuit given that 0 <= Vi <= 5 V. Use the piece-wise linear model of the diode

with Vy = 0.7 V and rd = 0 Q. (b) Draw a transfer function curve (Vo vs. Vi ) for te following circuit given that 0 <= Vi <= 10 V. Use the piece-wise linear model of the diode with Vy = 0.7 V and rd = 0 Q.