Chapter 1, Problem 1.46P

The cut−in voltage of the diode shown in the circuit in Figure P1.46 is $V_{\gamma }=0.7\text{V}$ . The diode is to remain biased “on” for a power supply voltage in the range $\text{5}\le V_{PS}\le 10\text{V}$ . The minimum diode current is to be $I_D{}_{\left(\min \right)}=2\text{mA}$ . The maximum power dissipated in the diode is to be no more than 10 mW. Determine appropriate values of $R_1$ and $R_2$ .

Figure P1.46