Download Exercise - Oklahoma State University

ECEN 3021 Experimental Methods-II
Lab 2
Hint: It is recommended that you calculate the transfer functions for all circuits first, as
the MATLAB commands will be repeated for each. Writing an m-file with all commands
that will be repeated could also speed things up.
Question 1:
1 KΩ
vin
i)
ii)
iii)
iv)
v)
vi)
100 mH
vout
Find the transfer function for this circuit.
Use MATLAB to plot the impulse and step responses of the circuit.
Use MATLAB to plot the square wave input response of the circuit at the
frequency of 500Hz having peak to peak voltage of 10V. (Hint: type help
square and use the square function to generate the input, then use lsim to find
the response)
Explain the relationship between the step response and the square wave
response. Can you change the frequency of the square wave to get the two
plots to match?
How do the Matlab results compare to the results from PSpice?
Solve analytically for the step response. Compare your results with the
MATLAB plot. Compare your results with the guess you made in the Pspice
laboratory (Question 1 iii.) for the form of the function.
Electrical & Computer Engineering
Oklahoma State University
ECEN 3021 Experimental Methods-II
Lab 2
Question 2:
1 KΩ
vin
i)
ii)
iii)
iv)
v)
vi)
2 KΩ
vout
Find the transfer function for this circuit.
Use MATLAB to plot the impulse and step responses of the circuit
Use MATLAB to plot the square wave input response of the circuit at the
frequency of 500 Hz having peak to peak voltage of 10V.
Explain the relationship between the step response and the square wave
response. Can you change the frequency of the square wave to get the two
plots to match?
How do the Matlab results compare to the results from PSpice?
Solve analytically for the step response. Compare your results with the
MATLAB plot. Compare your results with the guess you made in the Pspice
laboratory (Question 2 iii.) for the form of the function.
Question 3:
100 mH
vin
i)
ii)
iii)
iv)
1 KΩ
10 nF
vout
Find the transfer function for this circuit.
Use MATLAB to plot the impulse and step responses of the circuit
Use MATLAB to plot the square wave input response of the circuit at the
frequency of 250 Hz having peak to peak voltage of 10V.
How do the Matlab results compare to the results from PSpice?
Electrical & Computer Engineering
Oklahoma State University