Ex $2\mathrm{.}7$: Design a parallel$-$based clipper that will yield the voltage transfer function shown in Figure $2\mathrm{.}24.$ Assume diode cut$-$in voltages of $V_{}=0\mathrm{.}7V.($Ans$.$ For Figure $2\mathrm{.}23($b$),V_2=4\mathrm{.}3,V_1=1\mathrm{.}8V,$ and $R_1=2R_2)$

clearly explain