\(D _{1} \rightarrow \text { F.B.; } \quad D _{2} \rightarrow \text { R.B. }\)

\(0-0.6\,V\)

\(V _{\text {out }} \text { same as } V _{\text {in }}\)

\(\text { In -ve half cycle }\)

\(D _{2} \rightarrow \text { F.B.; } \quad D _{1} \rightarrow \text { R.B. }\)