Chapter 8, Problem 8.39P

Consider the circuit in Figure 8.31. The circuit parameters are $I_{Biass}=1\text{mA}$ , $R_L=100\Omega$ , $V^{+}=10\text{V}$ , and $V^{-}=-10\text{V}$ . The diode and transistor parameters are $I_{SD}=5\times {10}^{-16}\text{A}$ and $I_{SQ}=7\times {10}^{-15}\text{A}$ , respectively. Neglecting base currents, find (a) $V_{BB}$ and (b) the transistor quiescent collector currents (for ${\upsilon }_O=0$ ).