ECEn Matlab

Read and follow along with the document to get an introduction to MATLAB.

matlab_intro.pdf

After completing the document, make sure that you feel comfortable with the following MATLAB topics:

Matlab Basic Operations
Matrix Operations
Array Operations
Script Files

Even if you feel comfortable, click on the links above and become familiar with the MATLAB guide
provided on the wiki page. You may need to reference it later in the course.

mt240_nr_1_6_1_power.pdf

mt240_nr_3_2_1_parallelresistors.pdf

mt240_nr_3_4_1_voltage_division.pdf

mt240_nr_4_3_1_node_voltage_method.pdf

mt240_nr_4_12_1_max_power_transfer.pdf

mt240_nr_5_3_1_inverting_op_amp.pdf
mt240_nr_5_3_1_inverting_op_amp_function.pdf

mt240_nr_5_4_1_sum_op_amp.pdf
mt240_nr_5_4_1_sum_op_amp_function.pdf

(Not required, but for fun)

 Fun application
 Any wave or signal can be made up of tons of sinusoidal signals composed of different frequencies and
 amplitudes. The program below creates a square wave from n-number of input signals. Play around with 
 the number of input signals to see the effect of adding more and more input signals.

funapplication_sumopamp.m

To run this program you will need to edit the code and use your summing op amp function.

mt240_nr_6_3_1_capacitor.pdf

mt240_nr_7_2_1_nat_tesp_rc_circuit.pdf

mt240_nr_8_2_1_rlc_circuit.pdf

mt240_nr_9_1_1_sinusoidal_source.pdf

mt240_9_9_1_mesh_current_method.pdf

mt240_10_4_2_complex_power.pdf

mt240_14_4_1_crossover_network.pdf

   MT240_15_1_1 Active Filter

  Objective: Design a an active, low-pass filter using an op-amp

  Commands: none

  Background: While designing your crossover network you realized that
  the bass speaker's (low pass) amplifier has broken. You then decide to
  build the low pass filter and amplifier as one unit using an op-amp. 
  You decide to get fancy and use a variable capacitor so that you can
  change the corner frequency.


  Exercise: You decide to have design according to the topology shown in
  the image below.
  a) Design your circuit to have a max gain of 10.
  b) Your variable capacitor can assume values within the range: C = 1e-8:1e-7:1e-6;
  c) For every capacitor value calculate the transfer function |H(jw)| as a 
     a function of frequency using w(rads/sec) = 0:5*2*pi:3e5*2*pi;
  d) Create a bode plot of the results obtained in part c. Plot them all on
     the same graph.
  d) What value should the capacitor be if you want a corner frequency of
     about 140 Hz?
  e) What affect does the size of the capacitor have on the bandwidth?
  

mt240_15_1_1_t_activefiltertemplate.m