The circuit given in Fig. QB3 has the following properties: Vin = 20V, Rs = 1 kn, R1 = 2000, R2 = 8000, R3 = 2 KO, RL =

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The Circuit Given In Fig Qb3 Has The Following Properties Vin 20v Rs 1 Kn R1 2000 R2 8000 R3 2 Ko Rl 1 (60.86 KiB) Viewed 22 times

The circuit given in Fig. QB3 has the following properties: Vin = 20V, Rs = 1 kn, R1 = 2000, R2 = 8000, R3 = 2 KO, RL = 100, Vz = 5.6V, Bdc = 100 Explain the function of this circuit? [2 marks] ii. Calculate Vf, Vout, Ic2, 1b2, and ici. [10 Marks] ili. If the max current allowed by the zener diode is 25mA, is it safe? [3 Marks) iv. Estimate the power consumption by Q2 and Zener diode. [5 Marks) V. The max power allowed for Q2 is 2W, calculate the minimum RL needed in the circuit. (5 Marks) 19202 R] R3 LIL RS I(Rs I(R3) 1b2 RI + Ic! Vin Vout RL eitt - 1 + 5 vză vf R2 Vz Fig. QB3