Microelectronics: Circuit Analysis and Design
4th Edition
ISBN: 9780073380643
Author: Donald A. Neamen
Publisher: McGraw-Hill Companies, The
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Textbook Question
Chapter 15, Problem 15.25P
In the phase−shift oscillator in Figure 15.15, the capacitor at the noninverting terminal of op−amp
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A differentiator sub-system is built from an op-amp, a 10 yF capacitor and a 200 ka resistor. The output, viewed on an oscilloscope, is a t 5 volt square wave with a frequency of 0.25 Hz. The input waveform is
O A triangle wave of peak-to-peak amplitude 5 volts
O A pure sine wave of amplitude 2.5 volts and frequency 0.25 Hz
O Unknown, since the amplifier output is clearly overloaded
O An inverted + 0.2 volt square wave
The frequency of the Wien bridge oscillator circuit you see in the figure below is f=
15.915 kHz.
as it is;
a. What is the approximate value of the capacitor ( C ) that should be used?
100k
1
f =
2n R1.C1.R2.C2
741
J+12
Vo
100k
10k
10nF
10k
Consider the circult given below
a) Identify the circuit with details
b) Find the Q-point
O Find Vs,Vs Vo, Vos and Vas
d) Find the RMS output voltage and draw it In the same graph- with Input
e)
Comment on the output signal if the input increases to Vinp=20V
V 18 V
2.7 w
- 10 MA
atanm - - 6 V
C 100F
-0.3 F
1.5 MD
- 130 F
220 11
Chapter 15 Solutions
Microelectronics: Circuit Analysis and Design
Ch. 15 - Design a twopole lowpass Butterworth filter with a...Ch. 15 - Consider the switchedcapacitor circuit in Figure...Ch. 15 - Prob. 15.3EPCh. 15 - (a) Design a threepole highpass Butterworth active...Ch. 15 - Prob. 15.2TYUCh. 15 - Prob. 15.3TYUCh. 15 - Simulate a 25M resistance using the circuit in...Ch. 15 - Design the phaseshift oscillator shown in Figure...Ch. 15 - Design the Wienbridge circuit in Figure 15.17 to...Ch. 15 - Prob. 15.5TYU
Ch. 15 - Prob. 15.6TYUCh. 15 - Prob. 15.6EPCh. 15 - Redesign the street light control circuit shown in...Ch. 15 - A noninverting Schmitt trigger is shown m Figure...Ch. 15 - For the Schmitt trigger in Figure 15.30(a), the...Ch. 15 - Prob. 15.9TYUCh. 15 - Prob. 15.8EPCh. 15 - Prob. 15.9EPCh. 15 - Consider the 555 IC monostablemultivibrator. (a)...Ch. 15 - The 555 IC is connected as an...Ch. 15 - Prob. 15.10TYUCh. 15 - Prob. 15.11TYUCh. 15 - Prob. 15.12TYUCh. 15 - Prob. 15.12EPCh. 15 - Prob. 15.13EPCh. 15 - (a) Consider the bridge amplifier in Figure 15.46...Ch. 15 - Prob. 15.14EPCh. 15 - Prob. 15.15EPCh. 15 - Prob. 15.16EPCh. 15 - Prob. 1RQCh. 15 - Prob. 2RQCh. 15 - Consider a lowpass filter. What is the slope of...Ch. 15 - Prob. 4RQCh. 15 - Describe how a capacitor in conjunction with two...Ch. 15 - Sketch a onepole lowpass switchedcapacitor filter...Ch. 15 - Explain the two basic principles that must be...Ch. 15 - Prob. 8RQCh. 15 - Prob. 9RQCh. 15 - Prob. 10RQCh. 15 - Prob. 11RQCh. 15 - What is the primary advantage of a Schmitt trigger...Ch. 15 - Sketch the circuit and explain the operation of a...Ch. 15 - Prob. 14RQCh. 15 - Prob. 15RQCh. 15 - Prob. 16RQCh. 15 - Prob. 17RQCh. 15 - Prob. 18RQCh. 15 - Prob. D15.1PCh. 15 - Prob. 15.2PCh. 15 - The specification in a highpass Butterworth filter...Ch. 15 - (a) Design a twopole highpass Butterworth active...Ch. 15 - (a) Design a threepole lowpass Butterworth active...Ch. 15 - Prob. 15.6PCh. 15 - Prob. 15.7PCh. 15 - Prob. 15.8PCh. 15 - A lowpass filter is to be designed to pass...Ch. 15 - Prob. 15.10PCh. 15 - Prob. 15.11PCh. 15 - Prob. D15.12PCh. 15 - Prob. D15.13PCh. 15 - Prob. D15.14PCh. 15 - Prob. 15.15PCh. 15 - Prob. 15.16PCh. 15 - Prob. 15.17PCh. 15 - Prob. 15.18PCh. 15 - A simple bandpass filter can be designed by...Ch. 15 - Prob. 15.20PCh. 15 - Prob. 15.21PCh. 15 - Prob. D15.22PCh. 15 - Prob. 15.23PCh. 15 - Consider the phase shift oscillator in Figure...Ch. 15 - In the phaseshift oscillator in Figure 15.15, the...Ch. 15 - Consider the phase shift oscillator in Figure...Ch. 15 - Prob. 15.27PCh. 15 - Prob. 15.28PCh. 15 - Prob. 15.29PCh. 15 - Prob. 15.30PCh. 15 - Prob. 15.31PCh. 15 - A Wienbridge oscillator is shown in Figure P15.32....Ch. 15 - Prob. 15.33PCh. 15 - Prob. D15.34PCh. 15 - Prob. D15.35PCh. 15 - Prob. 15.36PCh. 15 - Prob. 15.37PCh. 15 - Prob. D15.38PCh. 15 - Prob. 15.39PCh. 15 - Prob. 15.40PCh. 15 - Prob. 15.41PCh. 15 - For the comparator in the circuit in Figure...Ch. 15 - Prob. 15.43PCh. 15 - Prob. 15.44PCh. 15 - Prob. 15.45PCh. 15 - Consider the Schmitt trigger in Figure P15.46....Ch. 15 - The saturated output voltages are VP for the...Ch. 15 - Consider the Schmitt trigger in Figure 15.30(a)....Ch. 15 - Prob. 15.50PCh. 15 - Prob. 15.52PCh. 15 - Prob. 15.53PCh. 15 - Prob. 15.54PCh. 15 - Prob. 15.55PCh. 15 - Prob. 15.56PCh. 15 - Prob. 15.57PCh. 15 - Prob. D15.58PCh. 15 - Prob. 15.59PCh. 15 - The saturated output voltages of the comparator in...Ch. 15 - (a) The monostablemultivibrator in Figure 15.37 is...Ch. 15 - A monostablemultivibrator is shown in Figure...Ch. 15 - Prob. D15.63PCh. 15 - Design a 555 monostablemultivibrator to provide a...Ch. 15 - Prob. 15.65PCh. 15 - Prob. 15.66PCh. 15 - Prob. 15.67PCh. 15 - Prob. 15.68PCh. 15 - An LM380 must deliver ac power to a 10 load. The...Ch. 15 - Prob. 15.70PCh. 15 - Prob. D15.71PCh. 15 - Prob. 15.72PCh. 15 - (a) Design the circuit shown in Figure P15.72 such...Ch. 15 - Prob. 15.74PCh. 15 - Prob. 15.75PCh. 15 - Prob. 15.76PCh. 15 - Prob. D15.77PCh. 15 - Prob. 15.78P
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- d) Design (Find the values of the R₁, R2, and C₁) an astable multivibrator circuit to have an output waveform as shown below in the figure (tH = 375µs and t₁ = 125µs). (Assume C₁ = C₂ and R₁ # R₂) and determine the frequency of oscillation and the duty cycle. R1: R2 C1 Q Vcc 4 555 5 C2 10nF I 8 1 3L -OVO tH = 375.0us tL = 125.0usarrow_forwardA resistor of resistance R=1000 Q is maintained at 17 °C and it shunted by 100 µH inductor. Determine the rms noise voltage across the inductor over a frequency bandwidth of: Ans: 182 x109 volt i) ii) 15.9 kHz 159 kHz Ans: 9.22 x10-8 volt 111) 1590 kHz Ans: 2.34 x10-6 voltarrow_forwardA simple RC oscillator has a feedback resistance of 20 ohms. The feedback capacitance of the same oscillator is found to be 35 Farads, with 3 feedback stages. Calculate the frequency. Show your solution. 0.000129 Ghz 0.000129 Hz 129 Hz 13 mHzarrow_forward
- Draw a diagram for astable multivibrator using 555 timer. Find the oscillation frequency of the output signal and its duty cycle when the external capacitor is 0.01 uF, the R1 and R2 are 10 kn and 50 kn respectively. While the decoupling capacitor equal 0.1 µF. What happened to the duty cycle when R2 become 1M02?arrow_forwardH.W: A resistor of resistance R=1000 2is maintained at 17 °C and it shunted by 100 uH inductor. Determine the ms noise voltage across the inductor over a frequency bandwi dth of: Ans: 182 x10° volt Ans: 9.22 x10 volt Ans: 2.34 x10 volt i) 15.9 kHz ii) i) 159 kHz 1590 kHzarrow_forwardIn a Wien bridge oscillator circuit, resistor and capacitor form a series branch and a parallel branch. The value of the resistor is 200 ohm and the value of the capacitor is 10 mF. Determine the frequency of oscillation for the Wien Bridge oscillator circuit.arrow_forward
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