Question $5$: BJT$,$ find Bmax

Use the BJT inverter circuit with its transfer characteristic shown above to find the following values:

$V_{o1}=9V$

$V_{o2}=0\mathrm{.}4V$

$V_{i1}=0\mathrm{.}7V$

$V_{i2}=6\mathrm{.}955V$

$R_C=200$

$=110$

Let $V_i=3\mathrm{.}9+$Bcos$(t)$ volts. What is the maximum value of $B$ such that the BJT remains in the active $($linear$)$ region?

$B_{\text{m}\text{a}\text{x}}=$

$(to$ within three significant digits$)$

Let $V_i=4\mathrm{.}3+$Bcos$(t)$ volts. What is the maximum value of $B$ such that the BJT remains in the active $($linear$)$ region?

$B_{\text{m}\text{a}\text{x}}=$

$(to$ within three significant digits$)$

Let $V_i=4\mathrm{.}7+$Bcos$(t)$ volts. What is the maximum value of $B$ such that the BJT remains in the active $($linear$)$ region?

$B_{\text{m}\text{a}\text{x}}=,V$

$(to$ within three significant digits$)$