3. For the voltage regulator circuit in Fig. 3 with Izm=6mA and Vz=-27.1V (a) Calculate the range...

3. For the voltage regulator circuit in Fig. 3 with Izm=6mA and Vz=-27.1V (a) Calculate the range of input voltages (Vimin and Vimax) that will keep Zener diode on (in Zener region). (b) Draw the V-I characteristics of the Zener diode assuming Vk = 0.7V, and mark the Vp and Ip values on the graph when V1 = Vimin and when V1 = Vimax- [2+2] R1 R2 20002 1kΩ D1 V1 } R3 5k22 Fig.3