Task Four: Hearing Aid Volume Control system The human ear reacts to various frequencies in a different way. The frequency range between 1 and 3 kHz is the most sensitive frequencies, and the average sound level is 60 dB. Design a Hearing Aid Volume Control system that receives a signal from a microphone then amplify and passe the most sensitive frequencies only. Consider the following specifications in your active filter design: a. Use Op-amp in your design. b. Use a 15-volt battery. c. The passband volage gain is more than 10 dB. Design procedure: 1. Draw the schematic diagram for the circuit to be analyzed. 2. Mathematically analyze the circuit and predict the behavior of the circuit under a variety of conditions. 3. Build this circuit on a breadboard or other convenient medium. Carefully measure all voltages and currents, to verify the accuracy of your analysis. 4. Verify the design by simulating the circuit. Carefully measure all voltages and currents, to verify the accuracy of your analysis. 5. Compare between the simulated and practical results.

Task Four: Hearing Aid Volume Control system The human ear reacts to various frequencies in a different way. The frequency range between 1 and 3 kHz is the most sensitive frequencies, and the average sound level is 60 dB. Design a Hearing Aid Volume Control system that receives a signal from a microphone then amplify and passe the most sensitive frequencies only. Consider the following specifications in your active filter design: a. Use Op-amp in your design. b. Use a 15-volt battery. c. The passband volage gain is more than 10 dB. Design procedure: 1. Draw the schematic diagram for the circuit to be analyzed. 2. Mathematically analyze the circuit and predict the behavior of the circuit under a variety of conditions. 3. Build this circuit on a breadboard or other convenient medium. Carefully measure all voltages and currents, to verify the accuracy of your analysis. 4. Verify the design by simulating the circuit. Carefully measure all voltages and currents, to verify the accuracy of your analysis. 5. Compare between the simulated and practical results.

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

select an answer1. In a digital PLL system, the blocks that compose it are...A. Phase detector, integrator and oscillator.B. Integrator, Mixer and a Loop.C. Phase detector, loop filter and VCO.D. Phase detector, loop filter and NCO.
Only part 4and5
7. When the automatic gain control voltage of a radio receiver is measured with a vacuum tube voltmeter whose input resistance is 10 M-ohm, it reads 4.5 V. When an ordinary voltmeter whose input resistance is 10 k-ohm is also connected across the AGC voltage source, both meters read 0.40. What is the internal resistance of the AGC voltage source? 8. A phonograph pick up develops an open-circuit emf of 50 mV and has an internal resistance of 1200 ohm. A. What voltage will it develop across a 4 ohms load resistance? B. What value of load resistance must be used to obtain a 75% eff? C. What is the maximum power output of the pickup? 9. What bleeder resistor is required to complete a voltage divider to give 300 v at 40 mA from a 500 V source of emf if the series dropping resistor is 4 k-ohm.
Figure 3 shows a Hartley oscillator. Assume that the op-amp employed in the figure is an ideal op-amp, and R1= 20 kΩ, R2 = 60 kΩ, L1=10 mH. b) State the Barkhausen criterion for sustained oscillation.c) Explain briefly how the phase shift requirement for sustained oscillation ismet in the circuit of Figure 3.d) The feedback ratio and oscillation frequency of Figure 3 are givenrespectively by, B = -L2/L1 and w0 = 1 / sqrt(L1 +L2)C Determine the values of C and L2 in order for the circuit to oscillate at a frequency of 200 Hz.
Define input impedance and its importance in electronic circuits and systems.
1a
(a) Summarize the differences between passive filter and active filter in terms of gain, cost and frequency selectivity. Q2
Consider the design of a low frequency differentiator to achieve the differentiation gain K = 0.001, and the highest frequency of the input signal is fH = 1000HZ. Determine the value of Ri, and Rf based on the criterion fb = 10fH.Assume that capacitor value is C = 0.1uF Ri= Rf= Ohms Kilo Ohms
5
Please help: Design an RC phase shift oscillator to generate sinusoidal waveform of frequency 500Hz. Plot frequency response of the RC feedback path and show that the phase shift is 180deg and gain is ~1/29 at the frequency of oscillation. Modify the circuit to generate a sinusoidal waveform of frequency 5KHz.
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