Microelectronic Circuits (The Oxford Series in Electrical and Computer Engineering) 7th edition
7th Edition
ISBN: 9780199339136
Author: Adel S. Sedra, Kenneth C. Smith
Publisher: Oxford University Press
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Chapter 10, Problem 10.8P
To determine
The value input resistance and mid-band gain.
Three short-circuit time constants and an estimate for
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Chapter 10 Solutions
Microelectronic Circuits (The Oxford Series in Electrical and Computer Engineering) 7th edition
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- Explain how B can be found for a transistor used in an experiment to study the characteristics of a transistor by taking advantage of the output characteristics p 10:52 /arrow_forwardShow the Common Emitter amplified output when sinusoidal 100Hz signal is applied at the input capacitor. Plz show the circuit diagramarrow_forwardFor the common emitter BJT amplifier below, Rg1 = 18K Ohms, Ra = 2K Ohms, Re = 4.7K Ohms, R = 750 Ohms, Vcc = 20 V, Beta of the Si transistor is 180 and ro = infinity. %3D %3D +Vcc RC RB1 C2 Io +Vo(p-p) 10 uF Vce(p-p) +vi ac input 10 uF RB2 RE Ohms. The output impedance of the amplifier isarrow_forward
- 1. According to the network below, determine DC analysis to get r, and calculate amplifier parameter in AC operation. (10.83 0, 1.08 ko, 4.3 kn, -277.65) vcc- 10V 4.3 kQ 390 k2 Vo 0.47 uF 0.47 uF B- 100 Viarrow_forwardThe following circuit represents a Bipolar Junction Transistor (BJT) based DC amplifier. Use the mesh analysis to find the transistor currents ic, iв, and iE. Keep 6 decimal points for this problem. Please write your final answers in µA (1 µA =10-6 A). 350 ΚΩ 0.25 V (+ 20 ΚΩ ich 10 k 50 iB iɛ|≤4.5 kº 9 V +arrow_forward5. From the circuit below, if the gain of BJT B = 80, determine the current IB and Ic, the voltage VB and VCE. Draw the DC load line and show the axis intercepts both X and Y of the graph. 1 18 V 2 ΚΩ www 220 ΚΩ 1 kn Hev B = 80arrow_forward
- RAW 10.10. Buck-boost converter design. A variable-voltage-output supply is to be designed to use a regulated input voltage VW = +12 VDC to provide a neg- ative output voltage V, in the range of -6 to -18 VDC. The maximum current drawn from the supply output is 0.5 A, and the largest tolerable ripple voltage VRIPPLE is 50 mV (peak to peak). BB (a) Find the values for duty cycle Dg that will provide the needed output voltage variation, and indicate which duty-cycle value corresponds to which output voltage, assuming an ideal switch is used. (b) If a switch frequency f= 100 kHz is used, find the value of C required to keep the peak-to-peak output ripple voltage less than 50 mV.arrow_forwardThe ac equivalent circuit for an amplifier is shown . Assume the capacitors have infinite value, RI = 750 Ω, RB = 100 kΩ, RC = 62 kΩ, and R3 = 100 kΩ. Calculate the voltage gain and input resistance for the amplifier if the BJT Q-point is (40μA, 10 V). Assume βo = 100 and VA = 75V.arrow_forwardAnswer the following with illustration and solutions. 2. If the output power from an audio amplifier is measured at 120W when the signal frequency is 1kHz, and 300W when the signal frequency is 10kHz. Calculate the dB charge in power. These is the example that might help.. see the picture below.arrow_forward
- To study the input and output characteristics of a BJT in Common Emitter(CE) Configuration and plot it on graph.lab report Input Characteristics: V CE = 5V V CE = 10V V BB (volts) V BE (volts) I B (µA) V BE (volts) I B (µA) Output Characteristics: I B = 431μA (VBB=5V) I B = 930μA (VBB=10V) V CC (volts) V CE (volts) I C (mA)arrow_forwardTRANSISTOR CLIPPER CIRCUIT +Vcc Re Vout www.Circuits Today.com A 2.5 15 0.5 10 15 20 25 V 2.arrow_forwardA BJT Current Mirror is shown below. The nominal current transfer ratio is 1, and the transistors are matched with I¸ = 4 × 10−18 A, ß = 120, and V · = 40 V. If the current IREF 150 μA, find: a) The output current ↳ for V = 2 V b) If the voltage V changes to 3 V, find the percent change in I with respect to Iref · IREF Q₁ Q2 + VBE =arrow_forward
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