(Solved): a. Draw the transfer characteristics of the following circuit. Assume diodes have VDON=0.7V, ...

a. Draw the transfer characteristics of the following circuit. Assume diodes have ${\mathrm{V}}_{\text{DON }}=0.7\mathrm{V}$, roN $=20?,{\mathrm{V}}_{\mathrm{Z}}=7V$ and ${\mathrm{r}}_{\mathrm{Z}}=5?$. b. $[5+5]$ : i. Given that the Zener diode is ideal with ${\mathbf{V}}_{\mathbf{z}}=15V$ and capacitor $\mathbf{C}$ is initially charged so that $V_{\text{out }}(t=0?)=+3V$, draw the output voltage for the first three cycles of $V_{\text{in }}=5Sin?\mathbf{t}$ for $?>0$. ii. Repeat part (i) if ${\mathbf{V}}_{\mathbf{in}}=10\mathrm{Sin}?\mathbf{t}$ for $\mathrm{t}>0$. c. $[4+4]$ : Following circuit is supplied with a Square wave ac input voltage of frequency $\mathbf{f}=2\mathbf{KHz}$ and $V_P=+/?100V$. Instead of using a regular diode an ideal zener diode with breakdown voltage ${\mathrm{V}}_{\mathrm{z}}=90\mathrm{V}$ is used. i. Draw the output voltage for the first complete cycle if the capacitor is initially uncharged. ii. Draw the current waveform for the zener diode for the first cycle.