Complete the following expressions so that they are true. • The function of a filter is to pass signal components in [Select] and reject components in [Select] ● ŵ range • A typical application of a filter is to [Select] î a range. signal. signal of interest. Along with filtering a signal, an active filter is one that can be used to [ Select] a

Complete the following expressions so that they are true. • The function of a filter is to pass signal components in [Select] and reject components in [Select] ● ŵ range • A typical application of a filter is to [Select] î a range. signal. signal of interest. Along with filtering a signal, an active filter is one that can be used to [ Select] a

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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Problem 1 The Figure below shows a screen shot of a signal recoded by an oscilloscope. a) What are the average and fundamental frequency for the given signal? b) If the signal is sampled with a sampling frequency of 10 Hz, sketch the sampled signal on the same chart. c) Find the average value of the sampled signal. d) Use zero-order hold to convert the sampled signal to a continuous one and sketch your result on the same chart 2. 0.5 0.4 Time (s) 0.1 0.2 0.3 0.6 0.7 0.8 0.9
The output power of filter is 100 mW, when the signal frequency is 5 kHz. When the frequency is increased to 25 kHz, the output power falls to 50 mW. What is the dB change in power ?
For the filter: a) Determine type of filter and the cut-off frequency (Fc). Determine the peak voltage at the cut-off frequency (Fc). b) Find GAIN (Vo/Vi) at f = .1*Fc . Find GAIN (Vo/Vi) at f = 10*Fc . c) Determine the frequency at which GAIN = .4 (i.e., Vo = .4*Vi) . Draw the “Frequency Response Plot” in “Log-Log” format .
(b) High-frequency ECG biopotentials analysis in the ST-T segment of a high-resolution ECG signal recording requires the analysis of signal components above 30 Ilz and below 800 Hz. Design a first order band pass passive filter to accommodate this specified frequency bandwidth. Sketch the circuit configuration. You may use an op- amp buffer stage in your circuit design.
Please provide Handwritten answer. Electrical Engineering It is a common practice to low-pass filter signals before feeding them into an A/D Converter. The purpose of this filter is to eliminate any noise or other frequency components beyond a useful frequency range. For instance, if you are recording ECG, you would low-pass filter it at 100Hz because there is no useful frequency components beyond 100Hz and if there is any component that would be noise. What problem arises during sampling of the signal by the A/D Converter if this pre-filter is not used? How does the sampling frequency need to be adjusted with and without the pre-filter? Answer the question considering Nyquist theorem.
A geophone is able to pick up signals in the frequency range of 20 Hz to 340Hz. Design anactive filter and a passive filter the earth vibration signal which ranges from 50 Hz to 250 Hz.What is the filter gain when the signal is at 450 Hz for both filters? Please state which type offilter performs better in this scenario and why
c) An ideal filter has exactly flat passbands with constant gain, exactly flat stopbands with zero gain, and zero-width transition bands. Sketch an example of such an ideal filter and explain why the ideal filter cannot be realised practically.
An electronic stethoscope is to be designed to operate within a full frequency range of 20 Hz to 20kHz. The accepted frequency range of human heart sounds is about 20Hz to 200Hz while that of the human lung sounds is about 25Hz to 1500Hz. Design an RC active bandpass filter circuits that could be implemented in a device to process signals that are captured from the heart sounds and the lungs sounds. Assume the voltage signals from the heart sounds from the transducer is 20mV and the desired output voltage is 5V. Use the non-inverting amplifier for your design.
-3dB point in frequency response of an active filter corresponds to A. absolute value negative 3dB of gain B. decrement of 3dB from maximum gain C. minimum gain attained D. minus 3dB of average gain value
Q.2:- a) Explain what a band-pass filter is, and how it differs from either a low-pass or a high-pass filter circuit. Also, explain what a hand-stop filter is, and draw Bode plots representative of both band-pass and band-stop filter types. b) What is the purpose (ll) of the parity bit during data transmission?
(a) Explain the function of a high pass filter. Draw a diagram of a simple high–pass filter using a capacitor and a resistor.
CR active filters find extensive use in communications and instrumentation measurements. a) By considering how the capacitor impedance in Figure 1 varies with frequency, explain if the circuit in Figure 1 acts as a low-pass or high-pass filter. p) Derive the closed-loop gain for the case of very high frequencies. c) Draw a graph that shows the frequency response of the CR active high-pass filter. The y-axis should correspond to gain in dBs and the x-axis to frequency. Make sure that you clearly indicate the 3 dB point and the equation that describes the relationship between w and CinRin at the cut-off frequency. Cin Rin A Vin Vout Figure 1