ecen_240_assignments
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ecen_240_assignments [2016/03/10 21:14] petersen |
ecen_240_assignments [2016/09/07 09:18] (current) wilde [MT240.NR.0] |
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| Read and follow along with the document to get an introduction to MATLAB. \\ | Read and follow along with the document to get an introduction to MATLAB. \\ | ||
| - | {{:240matlab:ch0:matlab_intro.docx|}} \\ | + | {{:240matlab:ch0:matlab_intro.pdf|}} \\ |
| After completing the document, make sure that you feel comfortable with the following MATLAB topics: | After completing the document, make sure that you feel comfortable with the following MATLAB topics: | ||
| Line 220: | Line 220: | ||
| {{:240matlab:solutions:ch9:mt240_9_9_1_mesh_current_method.m|}} | {{:240matlab:solutions:ch9:mt240_9_9_1_mesh_current_method.m|}} | ||
| </ifauth> | </ifauth> | ||
| + | |||
| + | <ifauth @admin,@240ta> | ||
| ===== Complex Power ===== | ===== Complex Power ===== | ||
| Line 280: | Line 282: | ||
| {{:240matlab:ch10:mt240_10_4_1_si2_complexpowersolutionimage2.jpg?400|}} | {{:240matlab:ch10:mt240_10_4_1_si2_complexpowersolutionimage2.jpg?400|}} | ||
| - | <ifauth @admin,@240ta> | + | |
| == Solution == | == Solution == | ||
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| ==== MT240.NR.14.4.1 ==== | ==== MT240.NR.14.4.1 ==== | ||
| - | <file> | + | == Document == |
| - | MT240_14_4_1 Cross over network | + | {{:240matlab:ch14:mt240_14_4_1_crossover_network.pdf|}} |
| - | + | ||
| - | Objective: Gain an understanding how you can use matlab to help you | + | |
| - | design lowpass, bandpass, and highpass filters. | + | |
| - | + | ||
| - | functions to learn: log10, semilogx | + | |
| - | + | ||
| - | Introduction: A crossover network consists of a highpass, lowpass, and | + | |
| - | bandpass filter. They are often used in stereo systems that separates | + | |
| - | a signal into three signals (bass, treble, and midrange). You will design | + | |
| - | a basic crossover network as depicted in the image below. | + | |
| - | + | ||
| - | Exercise: Design a crossover network with the following specifications: | + | |
| - | | | Low pass | Bandpass | High pass | | + | |
| - | |Lower cut off frequency | N/A | 250Hz | 2000Hz | | + | |
| - | |Upper cut off frequency | 250Hz | 2000Hz | N/A | | + | |
| - | a) For each filter design you will be calculating the transfer function | + | |
| - | of the voltage across each resistor. The equations should be simple | + | |
| - | voltage division as shown in the book. See chapter 14. Design your | + | |
| - | circuits choosing appropriate values for the capacitors and inductors. | + | |
| - | b) Find the magnitudes (|H(jw)|) for v1, v2, and v3 as a function of 'w' | + | |
| - | (frequency) with w being w = 0:10*2*pi:3e5*2*pi. Note that this is the | + | |
| - | transfer function (H(jw) = vout/vin) thus the amplitude of the input voltage | + | |
| - | source isn't needed in your calculations. | + | |
| - | 1) The midrange is a little more difficult so I provided you with the | + | |
| - | steps. | + | |
| - | a) Calculate the bandwidth. B = upper corner frequency - lower fc | + | |
| - | b) Solve for the inductor using the relationship B = R/L | + | |
| - | c) Solve for the capacitor value. | + | |
| - | c) Plot the magnitude in decibels vs the frequency(Hz) using a | + | |
| - | logarithmic scale. (use semilogx for this). | + | |
| - | d) How could you design a bandreject filter that rejects frequencies | + | |
| - | between 250Hz and 2000Hz? | + | |
| - | </file> | + | |
| - | == Image == | + | |
| - | + | ||
| - | {{:240circuits:hw13.png?400|}} | + | |
| - | + | ||
| - | == Template == | + | |
| - | + | ||
| - | {{:240matlab:ch14:mt240_14_4_1_t_crossover_networktemplate.m|}} | + | |
| - | + | ||
| - | == Solution Image == | + | |
| - | + | ||
| - | {{:240matlab:ch14:mt240_14_4_1_si_crossover_networksolutionimage.jpg?400|}} | + | |
| <ifauth @admin,@240ta> | <ifauth @admin,@240ta> | ||
ecen_240_assignments.1457669677.txt.gz · Last modified: 2016/03/10 21:14 by petersen
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