QUESTION 1: Consider the class-A emitter-follower circuit shown below. The values of resistors are R=2 kN and R1 = 1.425 kN . The circuit is biased by V*= 5 V, V¯ = -5 V. Assume all transistors are matched with VBE(on) = 0.62 V, VCE(sat) = 0.22 V, and V4=0. Neglect base currents. Calculate the value of Io. Then, determine the maximum and minimum values of output voltage and the corresponding input voltages for the circuit to operate in the linear region. Io (mA) Format : 4.95 Vo(max) (V) Format : 4.82 Vo(min) (V) Format : -4.94054 V{max) (V) Format : 5.3 V{min) (V) Format : -3.90093 V+ R ovo RL Q3 Q2 V-

QUESTION 1: Consider the class-A emitter-follower circuit shown below. The values of resistors are R=2 kN and R1 = 1.425 kN . The circuit is biased by V*= 5 V, V¯ = -5 V. Assume all transistors are matched with VBE(on) = 0.62 V, VCE(sat) = 0.22 V, and V4=0. Neglect base currents. Calculate the value of Io. Then, determine the maximum and minimum values of output voltage and the corresponding input voltages for the circuit to operate in the linear region. Io (mA) Format : 4.95 Vo(max) (V) Format : 4.82 Vo(min) (V) Format : -4.94054 V{max) (V) Format : 5.3 V{min) (V) Format : -3.90093 V+ R ovo RL Q3 Q2 V-

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...

See similar textbooks

Similar questions

Topic: Transistor Familiarization a. Describe how to determine whether an unknown transistor is a PNP or NPN type with just the aid of an ohmmeter. b. In order for a PNP or NPN transistor to function, what bias must be applied to the emitter-to-base junction? c. Differentiate the transistor from the vacuum tube.
An NPN transistor with ICBO=0.5µA ,ICEO=45 µA and collector current 2mA. Calculate the value of emitter current, a. 4.02mA b. 3.02mA c. 1.02mA d. 2.02mA
For the given circuit, Vcc 16 volts, Rg 600 Kn, Rc = 4 KN and B = 140. Assume Transistor is Silicon, VBE=0.7 volts. +Vcc Rc Rg VCE BE a. Name the type of Biasing in above circuit. b. Compute for the base current Q-point, Isa (in Amperes) c. Compute for the collector current Q-point, Ice (in Amperes) d. Compute for the collector-to-emitter voltage, VCEQ (in Volts)
4. The band gap between conduction and valance band in an insulator is (Low Very low High Moderate) 5. Operating point of a transistor must be independent of (Biasing Amplification Variations in parameters Filtration) 6. When a transistor operating at the central of the load line is declining, the current gain will change the Q-point (down up nowhere of the load line) 7. A bipolar junction transistor when used as a switch, operates in (cut-off and active region active and saturation region cut-off and saturation region all of these) 8. Inversion layer in an MOS circuit is made by (doping impact ionization tunnelling electric field) 9. What are the applications of semiconductor devices? (Microprocessors Analog eircuits High voltage applications All of these)
1. The circuit shown in the figure is a/an a. XOR gate b. AND gate c. XNOR gate d. OR gate 2. From the circuit shown, if the inputs A and B are both 1, Q3 is/has a. in the active region b. saturated c. at cut-off d. a collector-emitter voltage equal to 0 V3. From the circuit shown, if the inputs A and B are 1 and 0 respectively, Q3 is/has a. at cut-off b. saturated c. in the active region d. a positive collector-base voltage4. From the circuit shown, if the inputs A and B are 0 and 1 respectively, Q5 is/has/will| a. a negative base-collector voltage b. a collector-emitter voltage approximately 0 V c. at cut-off d. cause the LED to turn off
21
Instruction/s: Draw, Illustrate and label your schematic diagram before solving the problem. 1.) Given a Fixed-Biased transistor circuit with Beta DC is 200 , voltage at common collector is +22v ,base supply voltage is +11V, Base resistor is 47kOhms , collector resistor is 390 ohms ,Voltage at Base-emitter junction is 0.7v. Determine the Q-point of collector current and Voltage at collector-emitter junction. These is the example or guide that might help in answering the problem.
(iii), Why is the voltage-divider bias the preferred bias configuration? (iv) In a certain voltage-biased npn transistor, VB is 2.95 V. The DC emitter voltage is (a) 0.7 V (b) 2.95 V (c) 2.25 V (v) The emitter current is always (a) greater than the base current (b) less than the collector current (c) greater than the collector current (d) 3.65 V (d) answers (a) and (c)
don't solve it on a page. it gets difficult to see
"Bias voltage applied to the emitter electrode of a transistor offers greater stability over bias toward its base." Why? How does that actually work? My professor wants a detailed, engineering level explanation for this, and I am struggling to understand this to the degree he is asking. He says having both a positive and negative voltage source at the emitter bias is not necessary, and won't accept this as part of the explanation. Thanks!
c) Figure 2.3 shows the circuit diagram of a typical npn BJT common emitter amplifier. The values of RB1-30 kOhm, RB2=10.XY kOhm, Rc-3.XY kOhm, Ic=2.XY mA and Vcc=24 V. If the transistor current gain 3 = 50 determine using the full analysis and assuming VBE = 0.7 V the value of RE, hence identify the location of the Q-point (Ic, VCE, IB and VBE). Now sketch the AC circuit model of this amplifier and determine the value of the ac open circuit voltage gain Av and the ac short circuit current gain Ai. (Assume that Vth = 26 mV). Vin RB1 Cin lin RB2 -10 Rc VB RE + Vcc Vc Cout VE www li Figure 2.3 Vout Ce ¡out x=1 y=7
X=7, Y=0.