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Beta = 100 10 V IRE R3 Fig. 1: A current source and mirror circuits using...
R, Figure P7.49 .50 Figure P7.50 shows a current source realized using a current mirror with two matched transistors Q, and o, . Two equal resistances R, are inserted in the source leads to increase the output resistance of the current source. If Q, is operating at gm 1 mA/V and has VA-= 10 V, and if the maximum allowed de voltage drop across R, is 0.3 V, what is the maximum avail- able output resistance of the current source?...
EXERCISES 8.12 For the circuit in Fig. 8. 19, let 1-1 m1A, Vcc-15 VR-|0 kQ, with α 1, and let the input voltages be: t'ai = 5 + 0.005 sin 2π × 1000t. volts, and = 5-0.005 sin 2π × 10001, volts. (a) If the BJTs are specified to have gr of 0.7 V at a collector current of 1 mA. find the voltage at the emitters. (b) Find g, for each of the two transistors. (c) Find ic for...
pleaseee solve quickly it s urgent!!!!! EEN 311-Electronic Circuits ll (3 eredíįs)-Final Exam fferential amplifier biased with a basic current source rollowing parameters: Voo-Va 12 V. RD 8 ka, and 5. (20 points) Consider the di The circuit has the param Vi - 650 mv, Vov 50 mV, and R 10 k2. The transistors are matched and have: Va=80 V 几 Von Ro &K 오, DGI + VDD REF Q4 THE DE CEER Vss Determine: a) the reference current IREF...
SOLVE ALL THE 3 questions using the properties of OPERATIONAL AMPLIFIER AND BJTs. Problem 1 10 Marks A humidity sensor produces linear output voltage in the range of 0 V to 10 mV for humidity levels of 0 % to 100 % respectively. You are required to design the inverting op-amp circuit to achieve the voltage gain of 1000. Op-amp feed-back current should be 0.2 mA when op-amp output is at maximum. Solution: Problem 2 We discussed the summing circuit...
can you do 4.83 Ar- Q Sea 100 V, what does the gain become? age at the collector. (b) Replacing the transistor by its T model, da the small-signal equivalent circuit of the a plifier. Analyze the resulting circuit to dete mine the voltage gain t/ 04.81 Consider the CE amplifier circuit of Fig. 4.43(a). It is required to design the circuit (i.e., find values for I and Rc) to meet the following specifications: (a) R,5kn (b) the voltage gain...
Problem 1. Values:R1-R2-R3-R4-1KO: Vs-10 V; Is-10 mA. Use multiple choice correct answers to: Find in the network in Fig. P1 using Thevenia's - R R1 R2 Figure P1 What circuit below is used to find RTH? B 0 A What equation below is used to find RTH? O Rth=(R1+R2+R4)/(R1+R2)*R4 ORth= (R1+R2)*R4/R1+R2+R4 ORth= (R1+R2)*R4/(R1+R2)+R4 O Rth= (R1+R2)*R4/(R1+R2+R4) Question 3 What is the value of RTH? O 1500 O 4000 O 2000 O 666.67 What superposition circuit is used to find th...
1. Figure G: The ideal battery has an emf of 14 V. What is the current (A) in R a) 0.200 D0.250 b) 1.00 g) 0.100 c)0.500 h)0.235 2. Figure C shows, in cross section, a spherical conducting shell that surrounds a particle of charge -2e. The shell d) 0.667 i) 1.23 e) 0.750 has a net charge of -6e. What is the magnitude (N/C) of the electric field at point P, at distance2.00 m from the j)0.820 center of...