Homework 5 Solved - Microelectronic Circuits | ECE 3040, Assignments of Electrical and Electronics Engineering

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Homework 1. For the basic transistor circuit below, solve for the Q-point (all three currents and voltages on the transistor) assuming a B=100, an Early voltage, V4=100V, a Viun on=0,7 V for any forward biased Base-cmitter junction and a Vian o: 0.3 V for any forward biased base-collector junction (different duc to lower doping in CB junction): a. Assuming the transistor is biased in cutoff (neglect leakage currents). b. Assuming the transistor is biased in saturation. c. Assuming the transistor is biased in forward active. d. Which assumption is valid? ny BT R2 40k » C2 YeoutDC VoutAc 4 et cr Qs 100GuF Vina ANN | ftp $$$ gprcin ik 1000uF 4 V3 “a e. What value of Is would result in 0.7 V «lve rv M% ca -k F Rs Sam ] 10004 ] _ 100k for the base emitier voltage? f. Determine the voltage gain VoutAC/VinAC. g. Plot VoutDC and VoutAC for a 1 kHZ, ImV VinAC signal. b. Note: While f am not asking for it herein, you should be able to determine, B, &, and Is from the fundamental mat crial parameters.