

RL is also 8k Vcc =\oV Re=8K.r No loon Rsig IE=ImA --VEE B=lbo Find re, vatage...
VCC 15.0V RB1 RC Cc2 Vout Q1 RL Cc1 Rsig 1HF Vsig 100mVrms 50kHz RB2 RE CE Fig. 1 npn BJT Common Emitter Amplifier 1. (15 points) Assume 8-100. Using the DC Model and assumptions, find VCE Ica. Show the model. 2. (20 points) Using the small signal model, find A RinRoz. Show the model. 3. 5 ooints) Determine the percent change in Ay if ro is included in the analysis. Assume VA 1V
5. (20 points) For the amplifier in the following figure: +Vcc Rout Rc C3 R2 Rin Ri 1 k R3 Vo Vi R1 RE -VEE a) Draw the de equivalent circuit and find the Q-point. Assume B -75 b) Draw the equivalent circuit used for ac analysis. Find the values in Thevenin equivalent representation for the amplifiers between C, and C as shown below. What is the maximum value of v, that satisfies the small- signal assumption? Rout Ri vi...
i. In the following circuit. I1 = 10 mA. 1.2 = 1 mA and B = 100. Find the value of I/Irel. TOV 100 01 02 + VE RE ii. Consider a BJT current mirror with a nominal current transfer ratio of unity. Let the transistors have Is = 10-15 A, B = 100. VbE=0.7 V and VA = 100 V. Find I, when V. = 5 V, also find R. 111. In a class A output stage. Vee =...
Q2. For the op-amp circuit as shown below, given that RS = 49.5 k, RL = 12 k 2, R1 = 10 kO, R2 = 9 ㏀, R3 = 7.5 ko, R4 = 5 ㏀R5 = 2.2 k2 Ry vo Ry Ri Rs (a) Determine the voltage gain G1-vo1/vs: Submit Answer Tries o/5 (b) Determine the voltage gain G2-vo/vs: Submit Answer Tries o/5 Q3. For the op-amp circuit shown below, find the value of VO, where R1 = 20 Ω,...