Microelectronics: Circuit Analysis and Design
4th Edition
ISBN: 9780073380643
Author: Donald A. Neamen
Publisher: McGraw-Hill Companies, The
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Question
Chapter 5, Problem D5.74P
To determine
The design parameter of a bias-stable four resistor npn BJT amplifier.
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Students have asked these similar questions
a) Design the bias circuit for the transistor in figure A (find Rc, RB
„RE) for given values: VCE = 4V, Ic =3 mA and the voltage
value on the resistor RE is 2 V and hFE is 100.
Vcc -10 V
It
RB
RC
b) If the hFE of transistor become 200 by the effect of temperature
what will be new Ic value with resistor values you found in a.
RE
Figure A
1 KN
1 KN
22 KN
4.7 KN
Vcc
Vcc
VEE
VCB
VBE
BE VCB
VEE
Figure 1
Figure 2
c) Were the input and output characteristics of BJTS obtained similar like literature?
d) What are the main concepts in the preparation of BJT bias circuit?
04:- Design a bias circuit for NPN silicon transistor having a nominal B-100 to be used in voltage divider
circuit with Q-point of Ic 10 mA and VCE = 10 V. Use standard valued 5% resistors and draw a schematic
diagram of your design. (10 points)
Vec +12V
Re
1kS2
Re
470k2
BC107
Vc
Ve
Figure 3: Practical Fixed Bias Transistor Circuit
2. Measure the DC voltages Vc and VB using digital multi-meters. Determine
the quiescent base current, collector current, and collector- emitter voltage.
Chapter 5 Solutions
Microelectronics: Circuit Analysis and Design
Ch. 5 - An npn transistor is biased in the forwardactive...Ch. 5 - (a) The common-emitter current gains of two...Ch. 5 - An npn transistor is biased in the forwardactive...Ch. 5 - The emitter current in a pnp transistor biased in...Ch. 5 - The output resistance of a bipolar transistor is...Ch. 5 - Assume that IC=1mA at VCE=1V , and that VBE is...Ch. 5 - The openemitter breakdown voltage is BVCBO=200V ,...Ch. 5 - A particular transistor circuit requires a minimum...Ch. 5 - The circuit elements in Figure 5.20(a) are changed...Ch. 5 - The circuit elements in Figure 5.22(a) are V+=3.3V...
Ch. 5 - (a) Verify the results of Example 5.3 with a...Ch. 5 - Consider the pnp circuit in Figure 5.22(a). Assume...Ch. 5 - In the following exercise problems, assume...Ch. 5 - In the following exercise problems, assume...Ch. 5 - The circuit elements in Figure 5.27(a) are changed...Ch. 5 - Using a PSpice simulation, plot the voltage...Ch. 5 - The parameters of the circuit shown in Figure...Ch. 5 - Design the commonbase circuit shown in Figure 5.33...Ch. 5 - The bias voltages in the circuit shown in Figure...Ch. 5 - The bias voltages in the circuit shown in Figure...Ch. 5 - The circuit elements in Figure 5.36(a) are V+=5V ,...Ch. 5 - For the transistor shown in the circuit of Figure...Ch. 5 - For the circuit shown in Figure 5.41, determine...Ch. 5 - Assume =120 for the transistor in Figure 5.42....Ch. 5 - For the transistor in Figure 5.43, assume =90 ....Ch. 5 - (a) Redesign the LED circuit in Figure 5.45(a)...Ch. 5 - The transistor parameters in the circuit in Figure...Ch. 5 - Redesign the inverter amplifier circuit shown in...Ch. 5 - For the circuit shown in Figure 5.44, assume...Ch. 5 - Consider the circuit shown in Figure 5.51(b)....Ch. 5 - [Note: In the following exercises, assume the BE...Ch. 5 - [Note: In the following exercises, assume the B—E...Ch. 5 - Consider the circuit in Figure 5.54(a), let...Ch. 5 - Prob. 5.16EPCh. 5 - The parameters of the circuit shown in Figure...Ch. 5 - Consider the circuit in Figure 5.54(a). The...Ch. 5 - Consider the circuit shown in Figure 5.58. The...Ch. 5 - In the circuit shown in Figure 5.60, the...Ch. 5 - The parameters of the circuit shown in Figure...Ch. 5 - For Figure 5.59, the circuit parameters are...Ch. 5 - In the circuit shown in Figure 5.61, determine new...Ch. 5 - For the circuit shown in Figure 5.63, the circuit...Ch. 5 - (a) Verily the cascode circuit design in Example...Ch. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - Prob. 3RQCh. 5 - Define commonbase current gain and commonemitter...Ch. 5 - Discuss the difference between the ac and dc...Ch. 5 - State the relationships between collector,...Ch. 5 - Define Early voltage and collector output...Ch. 5 - Describe a simple commonemitter circuit with an...Ch. 5 - Prob. 9RQCh. 5 - Prob. 10RQCh. 5 - Prob. 11RQCh. 5 - Describe a bipolar transistor NOR logic circuit.Ch. 5 - Describe how a transistor can be used to amplify a...Ch. 5 - Discuss the advantages of using resistor voltage...Ch. 5 - Prob. 15RQCh. 5 - Prob. 16RQCh. 5 - (a) In a bipolar transistor biased in the...Ch. 5 - (a) A bipolar transistor is biased in the...Ch. 5 - (a) The range of ( for a particular type of...Ch. 5 - (a) A bipolar transistor is biased in the...Ch. 5 - Prob. 5.5PCh. 5 - An npn transistor with =80 is connected in a...Ch. 5 - Prob. 5.7PCh. 5 - A pnp transistor with =60 is connected in a...Ch. 5 - (a) The pnp transistor shown in Figure P5.8 has a...Ch. 5 - An npn transistor has a reverse-saturation current...Ch. 5 - Two pnp transistors, fabricated with the same...Ch. 5 - The collector currents in two transistors, A and...Ch. 5 - Prob. 5.13PCh. 5 - Prob. 5.14PCh. 5 - In a particular circuit application, the minimum...Ch. 5 - A particular transistor circuit design requires a...Ch. 5 - For all the transistors in Figure P5.17, =75 . The...Ch. 5 - The emitter resistor values in the circuits show...Ch. 5 - Consider the two circuits in Figure P5.19. The...Ch. 5 - The current gain for each transistor in the...Ch. 5 - Consider the circuits in Figure P5.21. For each...Ch. 5 - (a) The circuit and transistor parameters for the...Ch. 5 - In the circuits shown in Figure P5.23, the values...Ch. 5 - (a) For the circuit in Figure P5.24, determine VB...Ch. 5 - (a) The bias voltages in the circuit shown in...Ch. 5 - The transistor shown in Figure P5.26 has =120 ....Ch. 5 - The transistor in the circuit shown in Figure...Ch. 5 - In the circuit in Figure P5.27, the constant...Ch. 5 - For the circuit shown in Figure P5.29, if =200 for...Ch. 5 - The circuit shown in Figure P5.30 is to be...Ch. 5 - (a) The bias voltage in the circuit in Figure P5.3...Ch. 5 - The current gain of the transistor in the circuit...Ch. 5 - (a) The current gain of the transistor in Figure...Ch. 5 - (a) The transistor shown in Figure P5.34 has =100...Ch. 5 - Assume =120 for the transistor in the circuit...Ch. 5 - For the circuit shown in Figure P5.27, calculate...Ch. 5 - Consider the commonbase circuit shown in Figure...Ch. 5 - (a) For the transistor in Figure P5.38, =80 ....Ch. 5 - Let =25 for the transistor in the circuit shown in...Ch. 5 - (a) The circuit shown in Figure P5.40 is to be...Ch. 5 - The circuit shown in Figure P5.41 is sometimes...Ch. 5 - The transistor in Figure P5.42 has =120 . (a)...Ch. 5 - The commonemitter current gain of the transistor...Ch. 5 - For the circuit shown in Figure P5.44, plot the...Ch. 5 - The transistor in the circuit shown in Figure...Ch. 5 - Consider the circuit in Figure P5.46. For the...Ch. 5 - The current gain for the transistor in the circuit...Ch. 5 - Consider the amplifier circuit shown in Figure...Ch. 5 - For the transistor in the circuit shown in Figure...Ch. 5 - Reconsider Figure P5.49. The transistor current...Ch. 5 - The current gain of the transistor shown in the...Ch. 5 - For the circuit shown in Figure P5.52, let =125 ....Ch. 5 - Consider the circuit shown in Figure P5.53. (a)...Ch. 5 - (a) Redesign the circuit shown in Figure P5.49...Ch. 5 - Prob. 5.55PCh. 5 - Consider the circuit shown in Figure P5.56. (a)...Ch. 5 - (a) Determine the Q-point values for the circuit...Ch. 5 - (a) Determine the Q-point values for the circuit...Ch. 5 - (a) For the circuit shown in Figure P5.59, design...Ch. 5 - Design a bias-stable circuit in the form of Figure...Ch. 5 - Using the circuit in Figure P5.61, design a...Ch. 5 - For the circuit shown in Figure P5.61, the bias...Ch. 5 - (a) A bias-stable circuit with the configuration...Ch. 5 - (a) For the circuit shown in Figure P5.64, assume...Ch. 5 - The dc load line and Q-point of the circuit in...Ch. 5 - The range of ß for the transistor in the circuit...Ch. 5 - The nominal Q-point of the circuit in Figure P5.67...Ch. 5 - (a) For the circuit in Figure P5.67, the value of...Ch. 5 - For the circuit in Figure P5.69, let =100 and...Ch. 5 - Prob. 5.70PCh. 5 - Design the circuit in Figure P5.70 to be bias...Ch. 5 - Consider the circuit shown in Figure P5.72. (a)...Ch. 5 - For the circuit in Figure P5.73, let =100 . (a)...Ch. 5 - Prob. D5.74PCh. 5 - (a) Design a fourresistor bias network with the...Ch. 5 - (a) Design a four-resistor bias network with the...Ch. 5 - (a) A fourresistor bias network is to be designed...Ch. 5 - (a) Design a fourresistor bias network with the...Ch. 5 - For each transistor in the circuit in Figure...Ch. 5 - The parameters for each transistor in the circuit...Ch. 5 - The bias voltage in the circuit shown in Figure...Ch. 5 - Consider the circuit shown in Figure P5.82. The...Ch. 5 - (a) For the transistors in the circuit shown in...Ch. 5 - Using a computer simulation, plot VCE versus V1...Ch. 5 - Using a computer simulation, verify the results of...Ch. 5 - Using a computer simulation, verify the results of...Ch. 5 - Consider a commonemitter circuit with the...Ch. 5 - The emitterfollower circuit shown in Figure P5.89...Ch. 5 - The bias voltages for the circuit in Figure...Ch. 5 - The multitransistor circuit in Figure 5.61 is to...
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Similar questions
- ........ (Figure-1) R. RB= 380kN,Rc= 1kN B = 100, VBB = Vcc=12V RB ww Vec CC ......... I, V CE СЕ V ВЕ BB Q-1-b) Describe briefly the input / output characteristics and application of Common Emitter BJT Configurationarrow_forward5. The fixed bias circuit shown in figure uses a silicon transistor with VBE = 0.7V. (a) Find the collector current, lc, and voltage VCE, if ß of transistor is 60. (b) (b) Find Ic and VCE if B changes to 80. +Vcc (9V) 60k 0.5k + VCE VBEarrow_forwardIf an npn silicon transistor is operated at VCE = 5 V and Ic= 100 μA and has a current gain of 100 in the CE connection, then the input resistance of the circuit will be?arrow_forward
- . Design a fixed bias-transistor circuit using V = Vcc = 10 V for a Q-point of Iç = 5 mA and Va 4 V. Assume Boc = 100.The design involves finding R, and Rc. inakomeont thot one is hiasedarrow_forwardA certain npn silicon transistor has vBE=0.7 V for iB=0.1 mA at a temperature of 30°C. Sketch the input characteristic to scale at 30°C. What is the approximate value of vBE for iB = 0.1 mA at 180°C? (Use the rule of thumb that vBE is reduced in magnitude by 2 mV per degree increase in temperature.) Sketch the input characteristic to scale at 180°C.arrow_forward14arrow_forward
- c. For the circuit shown in Figure, determine lc and VCB. Assume the transistor to be made of Silicon. Ic RE=1.6 kn Rc=1.1 kn EE=8 V Vcc= 20 varrow_forwardDraw, Illustrate and label your schematic diagram before solving the problem. 3) Given an Emitter-Stabilize Biased transistor circuit with beta DC is 250,Base resistor is 150 ohms, collector resistor is 1.5k ohms ,emitter resistor is 500 ohms ,emitter voltage supply is -5v and Voltage at common collector is +28V,Voltage at Base-emitter junction is 0.7v,. Determine Base current, Collector current and Voltage at collector-emitter junction.arrow_forwardTransistors originally were made with germanium but modern transistors use silicon for its higher heat tolerance. Transistors amplify and switch signals. They can be analog or digital. Two prevalent transistors today are Metal-Oxide-Semiconductor Field Effect Transistors (MOSFET) and Bipolar Junction Transistors (BJT).In your own understanding in the field of electronics can you compare and contrast which one has merit over the other ?arrow_forward
- 2002, 100kN, Rc = 1kN, RĘ The parameters of the npn transistor circuit in Figure 1 are R1 VBE = 0.7V,and Vcc = 12V. Calculate IB, Ic, Ip, and VCE at the operating point if Bp = 50. +Vcc Ic R1 RC C IB Q1 B E RE OVarrow_forwardDiscussion 1. Calculate the theoretical DC voltages and currents for the transistor bias circuit and compare them with the practically measured values. Table-1: Measured Quantities for the DC Bias Circuit Parameter B VB VE Vc Icọ VCEQ VBEQ Te Value 65.63 1.20 0.58 7.32 1418mA 6.74 0,62 18.3356 ECTR Vcc +12V R5 R3 3.3kQ всз37 R2 R4 4.7kQ 4700 Figure 5: The DC Bias Circuit of the Common Emitter Amplifierarrow_forward3. Design a four-resistor BJT bias circuit, similar to the one shown in Figure 2, such that V3 = 4 V and Ic = 1 mA. Assume VBE (on) = 0.7 V and B-150 for the transistor. 12V R1 R2 10k RC 5.6k Q2N2222 RE Figure 2 Note: Use PN2222A in Multisimarrow_forward
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