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 equiv...
4. For the amplifier in the figure below use the parameters in the table: +Vcc Re VBE- 0.7V, Ri- 1002, R1-160k2, R2-320k2 R3-200k2, R6-40 k2, Rc-60k2, Vcc- 12V, Ry Do a) Draw the DC equivalent circuit and calculate the Q-point. c) Draw the AC equivalent circuit with the small signal model for the transistor. d) Calculate the voltage gain, Av-Vo/vi. Assume ro infinite. e) Draw the circuit to find the amplifier input resistance (Rin). Calculate Rin f Draw the circuit...
Voc Ri Rc C2 + RS G Q2N3904 RL Vout 2 R2 RE CE Rin Rout Cu B 1x B C o + V be : Cr 8m'be E VCC R R2 Rc RE RS RL С. Cz CE 12 V 8.2 kg 3.9 ko 6.3 k2 3.3 kΩ 3 ko 3.9 ko 10 uF 1uF 100 u Assume the 2N3904 has a 8 =100, Veron} = 0.7V, VA= 100V, C=100, C=13.9pF and Ce=8pF. Use the emission coefficient as n...
Vcc Rc C3 Si C1 rs RG R1 Vs Figure -Q2 (2Marks) (b) Draw the low frequency ac equivalent h-parameter model for the above circuit in Figure-Q2. (a) Find Vos. (4Marks) (6Marks) (8Marks) . VL (c) Find the mid-band voltage gain (d) Find the lower cutoff frequency for the above amplifier.
2. For the common-emitter amplifier. B= 50. Vcc=12 a) Draw small signal circuit b) Find vout/vin Find Zin and Zou Vcc R1 27k R2 2.2k Zout Zin Vo 4 C1 16 BIG Q1 NPN V1 C2 V R3 15k RE 1.2k BIG
R1 C1 HH The V1 R2 11 R3 circuit shown is a simplified representation of a small signal transistor amplifier circuit. The AC input voltage is V1, with angular frequency w. The current through R2, is It. The dependent current source, 11, has value 100 IV. Let R1 = 500, and R2 = 1000. The load resistor, R3 has a value that is selectable by a design engineer. Let C1 = 10 pF, and L1 = 1 uH. (For reference,...
Vcc= 15 V Rc 2 kO R1 10 kO Vo C1 R2=5 kQ Vs RE= 2 kQ Figure 1.1 [Rajah 1.1) SECTION A Bakagian A Question 1 Soalan 1 State THREE (3) operating regions in Bipolar Junction Transistor (BJT) and (a) briefly explain. [Nyatakan TIGA (3) kawasan operasi untuk transistor simpang dwikutub (BJT) dan jelaskan.] (3 Marks/Markah) (b) Based on the Figure 1.1, given B 100 and VBE (ON) 0.7 V. [Berdasarkan Rajah 1.1, diberi B 100 dan Vas (ON...
Problem 2: Consider the circuit shown in Figure 2. VCC-15V, R1-100 K2, R2-47 K2, RE-3.9K, Draw the small signal model Compute rel and re2. Rin1 and Rin2 as (shown in the circuit) . Find the overall gain. Using OCTC approach compute the high frequency time constants, given Cr-Cμ-1 pF. Stage 2 Load Source Stage 1 Re Ri RI 0 R, Ri Ri Figure 2 Problem 2: Consider the circuit shown in Figure 2. VCC-15V, R1-100 K2, R2-47 K2, RE-3.9K, Draw...
F LOpoint For the circuit shown in Figure 3 3. 1. Draw the DC equivalent circuit by opening caps and shorting inductors 2. Analyze the DC equivalent circuit as we have in previous labs (assume a region, analyze and check assumptions). Check your DC operating point using LT Spice. 3. Calculate the small signal parameters (transconductance, output resistance, input resistance) 4. Draw the AC equivalent circuit by shorting de voltage sources, opening dc current sources, shorting caps and opening inductors....
Vcc= 15 V Rc 2 kO R1 10 kO Vo C1 R2=5 kQ Vs RE= 2 kQ Figure 1.1 [Rajah 1.1) SECTION A Bakagian A Question 1 Soalan 1 State THREE (3) operating regions in Bipolar Junction Transistor (BJT) and (a) briefly explain. [Nyatakan TIGA (3) kawasan operasi untuk transistor simpang dwikutub (BJT) dan jelaskan.] (3 Marks/Markah) (b) Based on the Figure 1.1, given B 100 and VBE (ON) 0.7 V. [Berdasarkan Rajah 1.1, diberi B 100 dan Vas (ON...
2.34. Consider the common-emitter amplifier on the right. (a)Draw a small-signal equivalent circuit using the T-model without the B1 Cci output resistance (b)Find an expression for the input resistance Rin. (c)Find an expression for the output resistance Ro. (d) Find an expression for the lower cut-off frequency Vi Re sig 82 C, (RE-R) in associated with Cci. (d)Find expressions for the two gains vo/v, and v/Vsig CI. 2.34. Consider the common-emitter amplifier on the right. (a)Draw a small-signal equivalent circuit...