4. (a) Design a suitable current source that generates a small output current of 25 µA without having to use very large resistors (1M2 and greater). You are given two matched NPN transistors, and a - 13V power supply. The parameters of the transistors are: VBE = 0.7V at Ic = 3mA, VA = 80V, VT = 25mV, and B = 50. Draw the circuit, and show all relevant calculations. Neglect base currents when designing. %3D

4. (a) Design a suitable current source that generates a small output current of 25 µA without having to use very large resistors (1M2 and greater). You are given two matched NPN transistors, and a - 13V power supply. The parameters of the transistors are: VBE = 0.7V at Ic = 3mA, VA = 80V, VT = 25mV, and B = 50. Draw the circuit, and show all relevant calculations. Neglect base currents when designing. %3D

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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For the MOSFET circuit given here, V to = 2V, K = 160μA/V2. Design the values of R1 and R2 such that the drain current (ID) is 0.5mAand the current through the R1 and R2 is one-tenth of ID. Assume the transistor isin saturation (Hint: μ = 1 x 10-6).
In the circuit in the figure, VGSQ = 6.8 V, IDQ = 2.4 mA, VGS(Th) = 3.3 V, k = 0.4x10-3 A/V2, RD = 5.6 kΩ, RF = 2.2 MΩ and rd = 25 kΩ. Accordingly, when a RL = 23.6 kΩ load is connected to the output of the circuit, what will be the voltage gain of the circuit? NOTE: MOSFET output resistance must be taken into account in rd calculations.
The transistor in the circuit below is an enhancement n-type MOSFET with kn’= 400 μA/V2, W=4 μm, L=800 nm, and Vtn= 0.8 V. Solve the circuit below to find all the node voltages and all the branch currents.
If VT =2V, K= 0.4mA/V^2 , Vdd =5V, Rd =Rs =1K for the n-channel MOSFET given in the figure, what is the voltage value of Vgs?
1. Use the figure below to solve following questions (a) Solve the following dc quantitiesi. VB(Q1)ii. VE(Q1)iii. IE(Q1)iv. VC(Q1)v. VB(Q2)vi. VE(Q2)vii. IE(Q2)viii. VC(Q2)(b) Suppose that the emitter follower is omitted and the output from thecollector of Q1 is capacitively coupled to the 250Ω load, RL. What isthe output voltage across the 250Ω load?
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(a) What are the output currents and output resistances for the current sources as shown if IREF = 45 μA, K'n = 25 μA/V2, VTN = 0.75 V and λ =0.01V−1?(b) What are the currents if IREF is changed to 50 μA?(c) What would be the values if λ =0?
In the circuit given in the figure, R₁ = 850kQ, R₂ = 350kQ, Rs = 4kQ, RL = 4kQ,VDD = 10V, VSGQ = 2.084V and transistor parameters VTP = -1.2V,kp = 40μA/V², W/L = 80 andIt is given as λ= 0.05V-¹. a) Find the gm and ro small sign parameters of the transistor.b) Draw the small sign equivalent of the circuit. c) Find the low signal voltage gain of the circuit AV = V0/Vi.
Hey, can you please make sure this question is solved correctly and step by step solution to the way to approach and how it's done please. I want to learn how to do this type of problem. Design the circuit of Figure 4, that is, determine the values of RDand RS , so that the transistor operates at ID = 0.5mA and VD = +0.7V. TheNMOS transistor has Vt = 0.7V, nCox = 100A/V2, L = 1m, and W = 30m.Determine MOSFET operation mode (triode mode; saturation mode or cutoffmode).Use one of the equations below for the drain current:
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2. A student picks up a MOSFET in his lab and has no idea of what kind of transistor is it, he only knows the name of the three terminals:Gate, Source and DrainThe Pinch off voltage he found was Vp=4V and Idss=10mAa. What channel type of a transistor is it? Sketch it’s junction diagram.b. Find drain current for Vgs= −1,0,1,2,4c. Sketch the transfer curve for this transistor showing the two operational regions.d. Use the transfer curve to draw a characteristic curve, showing the ohmic region, pinch off voltage, saturation region and breakdown voltage.