In the circuit of Fig. P2.30 let VCC 5 12 V, V1 5 6 V, R2 5 33 kV, R3 5 3.0 kV, and R4 5 2.0 kV. Moreover, let F1 5 F2 5 50, VEB1(on) 5 VBE2(on) 5 0.7 V, and VEC1(sat) 5 VCE2(sat) 5 0.1 V. (a) Find R1...



In the circuit of Fig. P2.30 let VCC 5 12 V, V1 5 6 V, R2 5 33 kV, R3 5 3.0 kV, and R4 5 2.0 kV. Moreover, let F1 5 F2 5 50, VEB1(on) 5 VBE2(on) 5 0.7 V, and VEC1(sat) 5 VCE2(sat) 5 0.1 V. (a) Find R1 so that IC1 5 1.5 mA. (b) Look at your calculations again, and identify the cases in which base currents could have been ignored to speed up calculations, and those in which they couldn’t. Recalculate using these approximations, compare, and comment.



May 04, 2022
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