2. Consider the following operational amplifier circuit, where Ri=R2=R3= 1 K , C = 1 mF....
An amplifier circuit is shown in Fig. 1b. The operational amplifier (op-amp) Ai can be assumed as ideal. The input impedance of this amplifier is 1M2. The gain of this amplifier is -100. R2 V R VVV 小小 Ri Fig. 1b (a) Show that 12 = (b) Find the expression of the voltage gain, Av, in terms Ri, R, R3 and R4. (c) Due to practical reasons, the maximum value to be used for the resistors is set at 1M2....
MA C2 Vin out R2 Component Values: R1 = 2k , R2 = 10㏀, Cl = C2 = 1nF Consider the filter circuit above. Assume that the operational amplifier is ideal (infinite gain and infinite input impedance) Problem 2: Derive the transfer function of the circuit, H(s) - Vout(s)Vin(s)
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,...
3. The operational amplifier in the circuit in figure is ideal. a) Find the numerical expression for the transfer function H(S) = V/V. b) Give the numerical value of each zero and pole of H(s). C2 = 4 uF R2 = 10 k12 w 250 2 32 4F Bi Ci to+X-8v
Consider an electrical system shown in the following circuit diagram RI R2 Show that the transfer function from vi to vo can be expressed as H(s) s a R2 R1R2 and b where a RI R2C RI R2C = 5 x 104 , R2 Compute a and b of the electrical system for R1 C 10-6 F 1020 , and Compute the maximum phase (in degrees) of the electrical system and the correspond ing frequency (in rad/sec) Sketch the frequency...
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...
6. Find Vi in the following circuit if VR2 3 V, I -2 A, RI 100 , and R2 50 . Ry VR R.y 7. What is the output voltage (Vo) of the summing op-amp below? 1000 kn 200 k2 50 k2 +5 V 100 k2 -5 V V. out 8. For the operational amplifier circuit depicted below: a. Determine Vout in terms of the resistors: Ri, R2, R3, R4 and I R1 qut R- (current source) for the operational...
The circuit shown in Figure 2 is called a lead-lag filter. a) Find the transfer function Vols)/Vis). Assume an ideal operational amplifier. b) Determine the partial fraction expansion for Vols)/V(s) c) Determine Volt) and plot the results. Comment on the response of the filter 3. C1 R2 C2 iSin looot RI M(s) Figure 2: Lead-Lag Filter
4. Given the circuit below with Ri= 20 k2, R2 = 12 k 2, R3 = 36 k 2, C = 0.02 uF, determine the (a) period, (b) frequency, (c) peak value of the square wave, and (d) peak value of the triangular wave. R7
Assuming an ideal op-amp find the 3dB frequency of the circuit, if R1=1.8 K2, R2=10.9 KQ, R3=20 K., and C=5 nF. HH с R2 Answer: orad/s R1 Vw R3 Consider the above circuit with the component values: R1=1.8 KO, R2=10.9 KO, R3=20 KQ and C=5 nF. Find the DC gain of the circuit. Answer: Consider the above circuit with the component values: R1=10.9 K2, R2= 795.77 2, R3=20 K, and C=100 nF. Find the angle of the transfer function in...